# codex-plugin-cc | OpenAI | Knowledge Base | Instagit Use Codex from Claude Code to review code or delegate tasks. GitHub Stars: 23.2k Repository: https://github.com/openai/codex-plugin-cc --- ## Articles ### [Configuration Options for Customizing Codex CC Plugin Behavior](/openai/codex-plugin-cc/configuration-options-customizing-plugin-behavior) Explore Codex CC plugin configuration options including JSON manifest files, CLI arguments, and environment variables. Customize UI and automation without altering core code. - Tags: configuration-guide - Published: 2026-08-05 ### [How the OpenAI Codex Plugin Handles Structured Output Parsing from Codex Responses](/openai/codex-plugin-cc/how-plugin-handles-structured-output-parsing-codex-responses) Learn how the OpenAI Codex plugin handles structured output parsing from Codex responses. Discover the parseStructuredOutput helper for safe JSON parsing and error handling. - Tags: how-to-guide - Published: 2026-08-05 ### [Broker Lifecycle Management and Endpoint Handling in the OpenAI Codex Plugin](/openai/codex-plugin-cc/broker-lifecycle-management-endpoint-handling) Understand OpenAI Codex plugin's broker lifecycle management and endpoint handling. Learn about IPC endpoints, session state, child processes, and graceful shutdown. - Tags: deep-dive - Published: 2026-08-05 ### [How the Codex Plugin Collects Git Repository Context for Reviews](/openai/codex-plugin-cc/how-plugin-collects-git-repository-context-reviews) Discover how the Codex plugin collects git repository context for reviews. It uses a three-stage pipeline to gather diff data and untracked files, creating a structured JSON payload for the language model. - Tags: how-to-guide - Published: 2026-08-05 ### [Codex Plugin Review Output Schema Structure: Complete Field Reference](/openai/codex-plugin-cc/structure-review-output-schema) Understand the Codex plugin review output schema structure. Explore the complete field reference for verdict, summary, findings, and next steps, ensuring clear and structured code reviews. - Tags: api-reference - Published: 2026-08-05 ### [How Thread Persistence and Resume Functionality Work in Codex: A Deep Dive](/openai/codex-plugin-cc/how-thread-persistence-works-resuming-codex-tasks) Learn how Codex thread persistence and resume functionality keep long running tasks alive across CLI invocations. Resume your Codex tasks effortlessly. - Tags: deep-dive - Published: 2026-08-05 ### [Codex Sandbox Modes Explained: `read-only` vs `workspace-write` in the OpenAI Codex Plugin](/openai/codex-plugin-cc/difference-sandbox-modes-read-only-workspace-write) Understand the OpenAI Codex Plugin's sandbox modes. Learn how read-only blocks file modifications while workspace-write allows full repository access, controlling Codex's ability to inspect or alter code. - Tags: deep-dive - Published: 2026-08-05 ### [How the Codex CC Plugin Handles Errors and Implements Retry Logic](/openai/codex-plugin-cc/how-plugin-handles-errors-implements-retry-logic) Discover how the Codex CC plugin handles errors. Learn about its approach to propagating clear, actionable messages for manual retries, not automatic retries. - Tags: internals - Published: 2026-08-05 ### [Valid Model Aliases and Reasoning Effort Options in the OpenAI Codex Plugin](/openai/codex-plugin-cc/valid-model-aliases-reasoning-effort-options) Discover valid model aliases and reasoning effort options for the OpenAI Codex plugin, including spark, none, minimal, low, medium, high, and xhigh. - Tags: api-reference - Published: 2026-08-05 ### [How the Codex Plugin Integrates with Claude Code Hooks (SessionStart, SessionEnd, Stop)](/openai/codex-plugin-cc/how-plugin-integrates-claude-code-hooks) Discover how the Codex plugin integrates with Claude Code hooks SessionStart SessionEnd and Stop using Node scripts for session management cleanup and review gates Explore the openai codex plugin cc repository - Tags: internals - Published: 2026-08-05 ### [How the Codex Plugin Reports Progress on Long-Running Tasks](/openai/codex-plugin-cc/how-plugin-handles-progress-reporting-long-running-tasks) Discover how the Codex plugin reports progress on long running tasks using an event-driven system that logs, updates metadata, and provides live user previews. - Tags: internals - Published: 2026-08-05 ### [Codex Plugin Job State File Structure: How On-Disk State Is Organized](/openai/codex-plugin-cc/structure-job-state-files-stored-disk) Explore the Codex Plugin job state file structure. Understand how workspace state is organized on disk with a three-tier filesystem layout including state json and log files. - Tags: architecture - Published: 2026-08-05 ### [How the Broker Endpoint Works for Shared Codex Runtime in openai/codex-plugin-cc](/openai/codex-plugin-cc/how-broker-endpoint-works-shared-codex-runtime) Discover how the broker endpoint facilitates shared Codex runtime by enabling multiple clients to connect to a single app-server instance via JSON-RPC. Learn more. - Tags: internals - Published: 2026-08-05 ### [How the Codex Plugin Handles Process Termination and Job Cancellation](/openai/codex-plugin-cc/how-plugin-handles-process-termination-job-cancellation) Discover how the Codex plugin safely cancels jobs using a five-step shutdown sequence, preventing zombie processes and ensuring clean termination. - Tags: internals - Published: 2026-08-05 ### [Adversarial-Review vs Review Command in OpenAI Codex: What's the Difference?](/openai/codex-plugin-cc/difference-adversarial-review-regular-review-commands) Discover the difference between OpenAI Codex's adversarial-review and review commands. Understand how adversarial-review challenges assumptions for better code quality. - Tags: comparison - Published: 2026-08-05 ### [How the Codex Plugin Handles Authentication Status: A Technical Deep Dive](/openai/codex-plugin-cc/how-plugin-handles-authentication-status-codex) Understand how the Codex plugin manages authentication status by querying app-server for account details and normalizing responses into a unified auth status object. - Tags: deep-dive - Published: 2026-08-05 ### [How Codex Plugin Resolves Workspace Roots Across Different Project Structures](/openai/codex-plugin-cc/how-workspace-roots-resolved-project-structures) Learn how the Codex plugin resolves workspace roots across diverse project structures. Discover its efficient Git repository detection and fallback mechanisms for seamless development. - Tags: internals - Published: 2026-08-05 ### [How to Configure Model Selection and Reasoning Effort in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-plugin-handles-model-selection-reasoning-effort) Learn how the OpenAI Codex plugin manages model selection and reasoning effort via a three-stage pipeline including CLI parsing, normalization, and execution. Understand the configuration options. - Tags: how-to-guide - Published: 2026-08-05 ### [How Session Transfer Between Claude Code and Codex Works: A Technical Deep Dive](/openai/codex-plugin-cc/how-session-transfer-claude-code-codex-works) Explore how session transfer between Claude Code and Codex works. Learn how JSON transcripts enable seamless conversation state restoration in this technical deep dive. - Tags: deep-dive - Published: 2026-08-05 ### [How Background Jobs Are Tracked and Managed in the State Module (openai/codex-plugin-cc)](/openai/codex-plugin-cc/how-background-jobs-tracked-managed-state-module) Discover how the state module tracks and manages background jobs using a filesystem-backed registry with upsert API, automatic pruning, and isolated payload/log files. - Tags: internals - Published: 2026-08-05 ### [How Does the OpenAI Codex Plugin Communicate with Codex via the App Server Protocol?](/openai/codex-plugin-cc/how-plugin-communicates-codex-app-server-protocol) Discover how the OpenAI Codex plugin communicates with Codex using the App Server protocol via STDIN/STDOUT for seamless request-response and notification handling. - Tags: internals - Published: 2026-08-05 ### [How the Codex Review Gate Works and How to Enable or Disable It](/openai/codex-plugin-cc/how-does-codex-review-gate-work-enable-disable) Understand the Codex review gate safety mechanism. Learn how to enable or disable this feature controlling Claude turn reviews using the stopReviewGate flag. - Tags: how-to-guide - Published: 2026-08-05 ### [Direct Startup Mode vs Shared Session Mode in the Codex Plugin: A Complete Guide](/openai/codex-plugin-cc/differences-between-shared-session-mode-and-direct-startup-mode-codex) Explore direct startup mode vs shared session mode in the Codex plugin. Understand the core differences and choose the right runtime for your needs. - Tags: deep-dive - Published: 2026-08-04 ### [How to Configure Model Reasoning Effort (low/medium/high) in `.codex/config.toml`](/openai/codex-plugin-cc/how-to-configure-model-reasoning-effort-low-medium-high-config-toml) Control Codex model reasoning effort low medium or high by editing your .codex/config.toml file Set the default effort for all model requests easily - Tags: how-to-guide - Published: 2026-08-04 ### [Codex Plugin Progress Reporting and Notification Handling: Implementation Details](/openai/codex-plugin-cc/how-codex-plugin-implements-progress-reporting-notification-handling) Explore Codex plugin progress reporting and notification handling. Learn how real-time server events become human-readable phases using log files and JSON-RPC. - Tags: implementation-details - Published: 2026-08-04 ### [How Thread Persistence and Ephemeral Threads Work in the Codex Plugin Architecture](/openai/codex-plugin-cc/how-thread-persistence-ephemeral-threads-work-codex-plugin) Understand thread persistence and ephemeral threads in Codex plugins. Learn how the ephemeral parameter controls thread lifespan beyond the current turn. - Tags: internals - Published: 2026-08-04 ### [How to Configure the Codex Plugin for Custom OpenAI‑compatible API Endpoints](/openai/codex-plugin-cc/can-codex-plugin-use-custom-base-urls-openai-compatible-endpoints) Learn how to configure the Codex plugin for custom OpenAI-compatible API endpoints. Set your openai base url in the config toml file for flexible API integration. - Tags: how-to-guide - Published: 2026-08-04 ### [Configuration Precedence Order in Codex Plugin: User-Level vs. Project-Level `.codex/config.toml`](/openai/codex-plugin-cc/configuration-precedence-user-level-vs-project-level-codex-config-toml) Understand Codex Plugin configuration precedence. Learn how user-level and project-level .codex/config.toml files interact and which settings take priority for trusted projects. - Tags: deep-dive - Published: 2026-08-04 ### [How the Codex Plugin Handles Errors and Implements Automatic Retry Logic](/openai/codex-plugin-cc/how-codex-plugin-handles-errors-automatic-retry-logic) Discover how the Codex plugin centralizes error handling with its withAppServer wrapper, automatically retrying failed connections and falling back to direct connections for reliable operation. - Tags: internals - Published: 2026-08-04 ### [External Agent Session Import Mechanism and Ledger File in the Codex Plugin](/openai/codex-plugin-cc/external-agent-session-import-mechanism-ledger-file-codex) Learn how the Codex plugin imports external agent sessions and uses a ledger file to prevent duplicates. Understand the session import mechanism and caching process. - Tags: how-to-guide - Published: 2026-08-04 ### [How to Use the `codex:codex-rescue` Subagent for Bug Investigation and Resolution](/openai/codex-plugin-cc/how-to-use-codex-codex-rescue-subagent-bug-investigation) Learn how to use the codex codex-rescue subagent to investigate and resolve bugs. Analyze root causes without blocking the main thread. - Tags: how-to-guide - Published: 2026-08-04 ### [Codex Plugin Inline vs Detached Review Modes: A Complete Guide](/openai/codex-plugin-cc/difference-between-inline-and-detached-review-delivery-modes-codex) Understand the difference between inline and detached review modes in the Codex plugin. Learn when to use foreground synchronous or background asynchronous results. - Tags: how-to-guide - Published: 2026-08-04 ### [How the Codex Plugin Captures and Returns File Modifications and Command Execution Results](/openai/codex-plugin-cc/how-plugin-captures-returns-file-changes-command-executions-codex) Discover how the Codex plugin's notification-driven capture loop tracks file modifications and command results, returning structured state to callers. Learn more about openai/codex-plugin-cc. - Tags: internals - Published: 2026-08-04 ### [Multiple Claude Code Sessions Sharing the Same Codex Runtime Instance: Key Implications](/openai/codex-plugin-cc/what-happens-when-multiple-claude-code-sessions-share-codex-runtime) Explore the implications of multiple Claude Code sessions sharing a single Codex runtime instance. Learn how session IDs ensure isolated metadata while the broker process remains shared. - Tags: deep-dive - Published: 2026-08-04 ### [How to Specify and Use Different Codex Models (e.g., gpt-5.4-mini, spark) with the Plugin](/openai/codex-plugin-cc/can-i-use-different-codex-models-gpt-5-4-mini-spark-plugin) Learn how to specify and use different Codex models like gpt-5.4-mini and spark with the openai codex-plugin-cc. Control model selection via CLI or code for seamless integration. - Tags: how-to-guide - Published: 2026-08-04 ### [How the Codex Plugin Handles ChatGPT Authentication vs API Key Authentication](/openai/codex-plugin-cc/how-does-authentication-work-chatgpt-accounts-vs-api-keys-codex) Discover how the Codex plugin handles ChatGPT authentication versus API keys. Learn about verified login sessions and unverified API keys via the buildAppServerAuthStatus function. - Tags: internals - Published: 2026-08-04 ### [Codex Plugin Sandbox Modes and Approval Policies for Delegated Tasks Explained](/openai/codex-plugin-cc/what-sandbox-mode-and-approval-policies-for-delegated-tasks-codex) Understand Codex plugin sandbox modes read-only and workspace-write and the never approval policy for delegated tasks. Control file access and human oversight. - Tags: deep-dive - Published: 2026-08-04 ### [How to Resume a Previously Interrupted Codex Task Using `--resume` or `--fresh`](/openai/codex-plugin-cc/how-to-resume-previous-codex-task-resume-fresh-flags) Learn how to resume interrupted Codex tasks with --resume or --fresh flags. Continue previous threads or start fresh conversations effortlessly to optimize your workflow. - Tags: how-to-guide - Published: 2026-08-04 ### [What Is the Review Gate in the Codex Plugin? How the Stop Hook Prevents Reviews](/openai/codex-plugin-cc/what-is-review-gate-feature-and-stop-hook-codex-plugin) Discover the Codex plugin review gate, a safety feature that uses LLM checks to abort risky sessions. Learn how the Stop hook prevents reviews before they begin. - Tags: internals - Published: 2026-08-04 ### [Stop Review Gate Security Risks: Preventing Codex/Claude Infinite Loops in OpenAI's codex-plugin-cc](/openai/codex-plugin-cc/security-implications-of-stop-review-gate-creating-codex-claude-loops) Prevent Codex Claude infinite loops in openai codex plugin cc. Learn how the stop review gate can exhaust resources and enable unauthorized code execution. Secure your system now. - Tags: security - Published: 2026-08-03 ### [How the OpenAI Codex Plugin Handles Job Resumption with `--resume` and `--resume-last` Flags](/openai/codex-plugin-cc/how-plugin-handles-job-resumption-with-resume-and-resume-last-flags) Learn how the OpenAI Codex plugin uses --resume and --resume-last flags to seamlessly resume job threads in your Claude sessions. Understand this powerful feature for uninterrupted workflows. - Tags: internals - Published: 2026-08-03 ### [How the Codex Plugin Handles Progress Reporting and Streaming Notifications](/openai/codex-plugin-cc/how-plugin-handles-progress-reporting-and-streaming-notifications) Discover how the Codex plugin streamlines progress reporting and streaming notifications using job tracking and an app-server broker for real-time client updates. Learn more. - Tags: internals - Published: 2026-08-03 ### [How the Codex Plugin Handles Model Selection and the `spark` Alias Mapping](/openai/codex-plugin-cc/how-plugin-handles-model-selection-including-spark-alias-mapping) Discover how the Codex plugin handles model selection and the spark alias mapping. Learn how user input is normalized before API forwarding. - Tags: internals - Published: 2026-08-03 ### [How the Codex Plugin Handles Job Cancellation and Turn Interruption](/openai/codex-plugin-cc/how-plugin-handles-job-cancellation-and-turn-interruption) Discover how the Codex plugin handles job cancellation and turn interruption. Learn about the six-step sequence for resolving, interrupting, and terminating processes. - Tags: internals - Published: 2026-08-03 ### [Workspace‑Write vs. Read‑Only Sandbox Modes in the Codex Plugin for Claude Code](/openai/codex-plugin-cc/difference-between-workspace-write-and-read-only-sandbox-execution-modes) Understand the difference between workspace-write and read-only sandbox modes in the Claude Code Codex plugin. Learn how to safely review or apply code changes with the right mode. - Tags: deep-dive - Published: 2026-08-03 ### [How the Codex Plugin Handles Process Termination and Cleanup When Cancelling Jobs](/openai/codex-plugin-cc/how-plugin-handles-process-termination-and-cleanup-when-cancelling-jobs) Discover how the Codex plugin ensures reliable cleanup during job cancellation with its five-step shutdown sequence including process termination and state persistence. - Tags: internals - Published: 2026-08-03 ### [Understanding the broker-lifecycle Module in OpenAI Codex Plugin CC](/openai/codex-plugin-cc/what-is-broker-lifecycle-module-and-how-it-manages-broker-sessions) Discover the broker-lifecycle module in OpenAI Codex Plugin CC. Learn how this persistence layer creates, loads, and saves broker sessions, ensuring efficient reuse of a single broker instance. - Tags: deep-dive - Published: 2026-08-03 ### [How `getCodexAuthStatus` Handles Authentication in the Codex Plugin](/openai/codex-plugin-cc/how-plugin-handles-authentication-with-codex-via-getcodexauthstatus) Learn how getCodexAuthStatus in the Codex plugin checks CLI availability, connects to the app server, and queries data to manage authentication. Understand your Codex integration. - Tags: internals - Published: 2026-08-03 ### [Codex App-Server Protocol: How Threads Are Created and Resumed in the OpenAI Plugin](/openai/codex-plugin-cc/app-server-protocol-and-thread-creation-resumption) Understand the Codex app-server protocol for OpenAI plugins. Learn how thread/start and thread/resume methods manage thread lifecycles using JSON-RPC over pipes or sockets. - Tags: internals - Published: 2026-08-03 ### [How the Codex-CC Plugin Intercepts Claude Code Sessions Using SessionStart and SessionEnd Hooks](/openai/codex-plugin-cc/how-plugin-intercepts-claude-code-sessions-via-sessionstart-sessionend-hooks) Learn how the Codex-CC plugin intercepts Claude Code sessions using SessionStart and SessionEnd hooks to capture metadata and clean up resources. - Tags: internals - Published: 2026-08-03 ### [Codex Plugin CC Configuration Options for Model Selection and Reasoning Effort](/openai/codex-plugin-cc/configuration-options-for-model-selection-and-reasoning-effort) Explore Codex Plugin CC configuration options for model selection and reasoning effort. Control LLM usage and effort via opencode.json and CLI flags. - Tags: configuration-guide - Published: 2026-08-03 ### [How the OpenAI Codex Companion Plugin Handles Job State Persistence Across Background Executions](/openai/codex-plugin-cc/how-plugin-handles-job-state-persistence-across-background-executions) Discover how the OpenAI Codex Companion plugin ensures job state persistence across background executions with its resilient file-based state directory and JSON job records. - Tags: internals - Published: 2026-08-03 ### [How Background Task Execution Works in OpenAI Codex Companion: Task-Worker Process Model Explained](/openai/codex-plugin-cc/how-background-task-execution-works-and-task-worker-process-model) Learn how background task execution works in OpenAI Codex Companion. Explore the task-worker process model for reliable, non-blocking operations. - Tags: internals - Published: 2026-08-03 ### [How the Stop‑Time Review Gate Works and When to Enable It](/openai/codex-plugin-cc/how-review-gate-works-and-when-to-enable-stop-time-review-gate) Learn how the stop-time review gate works in Codex Plugin CC. Automatically review code changes before session end, blocking completions with issues. Enable it for cleaner code. - Tags: deep-dive - Published: 2026-08-03 ### [How the Codex Plugin Communicates with the Codex App Server via the Broker RPC System](/openai/codex-plugin-cc/how-codex-plugin-communicates-with-codex-app-server-via-broker-rpc) Learn how the Codex plugin communicates with the Codex app server using the broker RPC system. Discover efficient local IPC connections for shared agent communication. - Tags: internals - Published: 2026-08-03 ### [What Prompts Are Used for Adversarial Reviews Versus Regular Reviews in Codex?](/openai/codex-plugin-cc/codex-prompts-adversarial-vs-regular-reviews) Explore the distinct prompts used for adversarial vs regular reviews in OpenAI Codex. Understand how adversarial-review.md and stop-review-gate.md differentiate security scrutiny and constructive feedback. - Tags: deep-dive - Published: 2026-08-02 ### [How the Codex Plugin Handles Session Filtering for Job Visibility](/openai/codex-plugin-cc/codex-plugin-session-filtering-job-visibility) Learn how the Codex plugin handles session filtering for job visibility by tagging jobs with the current Claude session ID and filtering all operations against this value. - Tags: internals - Published: 2026-08-02 ### [User-Level vs Project-Level Codex Configuration: Understanding the Hierarchy in openai/codex-plugin-cc](/openai/codex-plugin-cc/user-level-vs-project-level-codex-configuration) Understand the hierarchy of user-level and project-level Codex configuration in openai/codex-plugin-cc. Learn how project configs override global defaults for your workspace. - Tags: understanding - Published: 2026-08-02 ### [How the Codex Plugin Handles Process Tree Termination on Windows, Linux, and macOS](/openai/codex-plugin-cc/codex-plugin-process-tree-termination-cross-platform) Discover how the Codex plugin terminates process trees across Windows, Linux, and macOS. Learn about platform-specific strategies and commands used for clean process management. - Tags: internals - Published: 2026-08-02 ### [App Server Protocol Types in the OpenAI Codex Plugin: Complete Reference](/openai/codex-plugin-cc/app-server-protocol-types-structure-codex-plugin) Explore the app server protocol types in the OpenAI Codex plugin. Understand client configuration, RPC mappings, and type helpers for secure App Server communications. - Tags: api-reference - Published: 2026-08-02 ### [How the Codex Plugin Tracks Job Status and Stores Job Records](/openai/codex-plugin-cc/codex-plugin-track-job-status-and-store-records) Discover how the Codex plugin tracks job status and stores job records using a filesystem-based system. Learn about real-time updates and atomic file operations for efficient progress tracking. - Tags: internals - Published: 2026-08-02 ### [Foreground vs Background Task Execution in the OpenAI Codex Plugin](/openai/codex-plugin-cc/codex-plugin-foreground-vs-background-task-execution) Understand foreground vs background task execution in the OpenAI Codex plugin. Learn how to run tasks synchronously or asynchronously for uninterrupted workflow and easy status checks. - Tags: deep-dive - Published: 2026-08-02 ### [What Happens When You Resume a Codex Task with the `--resume` Flag](/openai/codex-plugin-cc/codex-task-resume-with-resume-flag) Learn what happens when you resume a Codex task using the --resume flag. Discover how it continues conversations from their previous state without altering the visible prompt. - Tags: how-to-guide - Published: 2026-08-02 ### [How the Codex Plugin Implements the Stop-Review-Gate Hook](/openai/codex-plugin-cc/codex-plugin-implement-stop-review-gate-hook) Discover how the Codex plugin implements the stop review gate hook. Learn how this safety feature automatically queries an LLM to abort pipelines when needed, ensuring safe AI execution. - Tags: internals - Published: 2026-08-02 ### [Model Aliases and Reasoning Effort Options in the OpenAI Codex Plugin](/openai/codex-plugin-cc/codex-plugin-model-aliases-and-reasoning-effort-options) Explore model aliases and reasoning effort options in the OpenAI Codex plugin. Learn how to control code generation with effort levels from none to xhigh and use the spark alias. - Tags: deep-dive - Published: 2026-08-02 ### [Force working-tree review](/openai/codex-plugin-cc/codex-plugin-resolve-review-targets-working-tree-vs-branch) Understand how the Codex plugin resolves review targets, differentiating between working tree and branch detection for efficient code reviews. - Tags: how-to-guide - Published: 2026-08-02 ### [Broker Lifecycle in the Codex Plugin: How Sessions Are Created, Managed, and Cleaned Up](/openai/codex-plugin-cc/codex-plugin-broker-lifecycle-session-management) Understand the Codex plugin broker lifecycle. Learn how sessions are created, managed with disk persistence, and cleaned up via JSON-RPC for Claude Code. - Tags: internals - Published: 2026-08-02 ### [How the Codex Plugin Handles Job Cancellation and Process Termination](/openai/codex-plugin-cc/codex-plugin-job-cancellation-and-process-termination) Discover how the Codex plugin ensures job cancellation and process termination through its multi-stage pipeline for graceful interruption and forceful termination. - Tags: internals - Published: 2026-08-02 ### [Lifecycle of a Codex Task Execution in the OpenAI Codex Plugin](/openai/codex-plugin-cc/codex-task-execution-lifecycle-managed-by-plugin) Explore the 6 stages of a Codex task execution lifecycle managed by the openai/codex-plugin-cc. Learn how jobs progress from creation to UI query using a state store. - Tags: internals - Published: 2026-08-02 ### [How the Codex Plugin Handles Authentication and Availability Checks](/openai/codex-plugin-cc/codex-plugin-codex-authentication-and-availability-checks) Discover how the Codex plugin handles authentication and availability checks. Learn about getCodexAvailability and getCodexAuthStatus for seamless operations. - Tags: internals - Published: 2026-08-02 ### [How the Codex Plugin Manages and Tracks Background Jobs: File-Based State Architecture Explained](/openai/codex-plugin-cc/codex-plugin-manage-and-track-background-jobs) Discover how the Codex plugin uses a file-based architecture to manage and track background jobs. Learn about its durable system for job metadata, progress, and output persistence. - Tags: internals - Published: 2026-08-02 ### [How Session Transfer Between Claude Code and Codex Plugin Works: A Deep Dive](/openai/codex-plugin-cc/session-transfer-between-claude-code-and-codex-plugin) Understand session transfer between Claude Code and Codex plugin. Learn how the codex transfer CLI command reconstructs execution context, including open files and cursor positions. - Tags: deep-dive - Published: 2026-08-02 ### [How Background Job Execution Works in the OpenAI Codex Plugin](/openai/codex-plugin-cc/codex-plugin-background-job-execution-function) Learn how background job execution works in the OpenAI Codex plugin. Discover its persistent state, detached child processes, and asynchronous task handling. - Tags: internals - Published: 2026-08-02 ### [How the Codex Plugin Review Gate Works and When to Enable It](/openai/codex-plugin-cc/codex-plugin-review-gate-how-and-when-to-enable) Understand the Codex plugin review gate's code checks and when to enable it for sensitive projects. Secure your codebase with this essential protocol. - Tags: how-to-guide - Published: 2026-08-02 ### [App Server Protocol for Codex Plugin Communication: JSON-RPC Architecture Explained](/openai/codex-plugin-cc/app-server-protocol-codex-plugin-communication) Understand the app server protocol for Codex plugin communication. Learn how JSON-RPC and typed method calls enable seamless interaction and asynchronous updates. - Tags: architecture - Published: 2026-08-02 ### [How the Codex Plugin Integrates with the Local Codex CLI: JSON-RPC Architecture Explained](/openai/codex-plugin-cc/how-codex-plugin-integrates-with-local-codex-cli) Understand how the Codex plugin integrates with the local Codex CLI via JSON-RPC. Learn how it delegates AI operations and streams progress back to your editor. - Tags: internals - Published: 2026-08-02 ### [Internal Error Handling Patterns for App Server Communication in the Codex Plugin](/openai/codex-plugin-cc/what-internal-error-handling-patterns-for-app-server-communication) Discover robust internal error handling patterns for app server communication in the Codex plugin. Learn about typed RPC, promise rejection, retries, and graceful degradation. - Tags: internals - Published: 2026-08-01 ### [How the Codex-Plugin-CC Handles Git Repository Context for Reviews](/openai/codex-plugin-cc/how-does-plugin-handle-git-repository-context-for-reviews) Learn how the Codex-Plugin-CC builds Git repository context for reviews by traversing files and loading content into an optimized payload for the Codex LLM. - Tags: how-to-guide - Published: 2026-08-01 ### [What Happens When a Rescue Task Is Resumed vs Started Fresh](/openai/codex-plugin-cc/what-happens-when-rescue-task-is-resumed-vs-started-fresh) Learn the difference between resuming a Codex rescue task with --resume and starting fresh with --fresh. Understand state restoration and new thread creation. - Tags: how-to-guide - Published: 2026-08-01 ### [How to Load and Interpolate Prompt Templates in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-are-prompts-interpolated-and-loaded-from-template-files) Learn how the OpenAI Codex plugin loads prompt templates from files and interpolates {{PLACEHOLDER}} tokens with runtime values using loadPromptTemplate and interpolateTemplate utilities. - Tags: how-to-guide - Published: 2026-08-01 ### [Sandbox and Approval Policies Applied When Running Codex: A Technical Deep Dive](/openai/codex-plugin-cc/what-sandbox-and-approval-policies-applied-when-running-codex) Discover the sandbox and approval policies for running OpenAI Codex. Learn how default read-only filesystems and automatic approval ensure secure execution. - Tags: deep-dive - Published: 2026-08-01 ### [How the Codex Plugin Handles Timeout and Polling for Status Checks](/openai/codex-plugin-cc/how-does-plugin-handle-timeout-and-polling-for-status-checks) Learn how the Codex plugin manages timeout and polling for status checks. Discover its default 4-minute timeout and 2-second polling intervals for efficient monitoring. - Tags: internals - Published: 2026-08-01 ### [What Is the Codex Plugin Broker Endpoint and How It Communicates with the App Server](/openai/codex-plugin-cc/what-is-broker-endpoint-and-how-does-it-communicate-with-app-server) Understand the Codex plugin broker endpoint, a platform-specific transport for lightweight IPC. Learn how it uses sockets and JSON-RPC to enable multiple processes to share a single server instance. - Tags: internals - Published: 2026-08-01 ### [How `importExternalAgentSession` Works for Session Transfer in OpenAI Codex Plugin](/openai/codex-plugin-cc/how-does-importexternalagentsession-function-work-for-session-transfer) Learn how importExternalAgentSession works for session transfer in the OpenAI Codex plugin. This function validates Claude Code transcript paths and converts them into resumable Codex threads. - Tags: internals - Published: 2026-08-01 ### [How Codex-Plugin-CC Manages Job State and Persists Job Data](/openai/codex-plugin-cc/what-job-state-management-flow-and-where-is-job-data-persisted) Learn how Codex-Plugin-CC manages job state with a file-based state machine and persists job data atomically to disk in its dedicated workspace directories. - Tags: internals - Published: 2026-08-01 ### [How Structured Output Parsing Is Implemented for Review Results in OpenAI's Codex Plugin CC](/openai/codex-plugin-cc/how-is-structured-output-parsing-implemented-for-review-results) Discover how structured output parsing for review results is implemented in OpenAI's Codex Plugin CC. Learn about the TypeScript validation pipeline with Zod schemas for efficient parsing. - Tags: internals - Published: 2026-08-01 ### [Codex Companion Lifecycle Hooks Explained: When SessionStart, SessionEnd, and Stop Fire](/openai/codex-plugin-cc/what-hooks-are-registered-and-when-do-they-fire) Understand Codex Companion lifecycle hooks SessionStart, SessionEnd, and Stop. Learn when each hook fires for session creation, termination, and cancellation. - Tags: internals - Published: 2026-08-01 ### [How the Codex Plugin Handles Authentication Status Checking](/openai/codex-plugin-cc/how-does-plugin-handle-codex-authentication-status-checking) Discover how the Codex plugin checks authentication status by querying the app-server and normalizing auth details into a unified object. Learn more about its internal workings. - Tags: internals - Published: 2026-08-01 ### [What Is TurnCaptureState and How Does It Capture Codex Output?](/openai/codex-plugin-cc/what-purpose-of-turncapturestate-and-how-capture-codex-output) Learn about TurnCaptureState, the state management system in openai/codex-plugin-cc, that captures every Codex interaction by saving job data to JSON files. - Tags: deep-dive - Published: 2026-08-01 ### [How `runAppServerTurn` Manages Thread Lifecycle in OpenAI's Codex Plugin CC](/openai/codex-plugin-cc/how-does-runappserverturn-function-manage-thread-lifecycle) Explore how runAppServerTurn manages thread lifecycle in OpenAI's Codex Plugin CC. Learn about isolated execution, message handling, and deterministic cleanup for efficient resource management. - Tags: internals - Published: 2026-08-01 ### [Codex Plugin for Claude Code: Complete Guide to `.codex/config.toml` Configuration Options](/openai/codex-plugin-cc/what-configuration-options-available-in-codex-config-toml) Explore all eight config options in .codex/config.toml for the Codex plugin with Claude Code. Learn to control models, reasoning, and OpenAI connections for optimal performance. - Tags: api-reference - Published: 2026-08-01 ### [How the Codex Plugin Determines Review Target: Working Tree vs Branch](/openai/codex-plugin-cc/how-does-plugin-determine-review-target) Discover how the Codex plugin determines review targets. Learn its logic for choosing between working tree changes or branch diffs based on flags and repo state. - Tags: internals - Published: 2026-08-01 ### [What Happens When the Review Gate Blocks a Claude Stop Operation](/openai/codex-plugin-cc/what-happens-when-review-gate-blocks-claude-stop-operation) Discover what happens when the review gate blocks a Claude stop operation. Learn how plugins intercept, review, and prevent session termination for a secure AI experience. - Tags: how-to-guide - Published: 2026-08-01 ### [How the Codex Plugin Handles Reasoning Effort Settings: `none`, `minimal`, `low`, `medium`, `high`, `xhigh`](/openai/codex-plugin-cc/how-does-plugin-handle-reasoning-effort-settings) Discover how the Codex plugin manages reasoning effort settings like none, minimal, low, medium, high, and xhigh. Learn how it validates and forwards these settings to the Codex API. - Tags: internals - Published: 2026-08-01 ### [Codex Plugin Model Aliases: How They Work and How They're Resolved](/openai/codex-plugin-cc/what-model-aliases-are-supported-and-how-are-they-resolved) Understand how the codex plugin model aliases work and get resolved. Discover the supported spark alias and its mapping to gpt-5.3-codex-spark. - Tags: deep-dive - Published: 2026-08-01 ### [How Background Jobs Are Tracked and Managed in the OpenAI Codex Companion Plugin](/openai/codex-plugin-cc/how-are-background-jobs-tracked-and-managed-in-plugin) Discover how the OpenAI Codex Companion plugin tracks and manages background jobs using a file-based system for persistence and monitoring across restarts. Learn more now. - Tags: internals - Published: 2026-08-01 ### [/codex:review vs /codex:adversarial-review: What's the Difference in OpenAI's Codex Plugin](/openai/codex-plugin-cc/what-is-difference-between-codex-review-and-codex-adversarial-review) Discover the difference between OpenAI Codex commands /codex:review and /codex:adversarial-review. Understand their unique approaches to code review and defect detection. - Tags: deep-dive - Published: 2026-08-01 ### [How Session Transfer Works Between Claude Code and Codex](/openai/codex-plugin-cc/how-does-session-transfer-work-between-claude-code-and-codex) Discover how session transfer between Claude Code and Codex works. Learn how conversation state, files, and context are serialized to JSON for seamless AI assistant continuity. - Tags: internals - Published: 2026-08-01 ### [How the Codex Review Gate Works and When to Enable It](/openai/codex-plugin-cc/how-is-review-gate-implemented-and-when-should-it-be-enabled) Understand the Codex review gate, a safety feature stopping incomplete work before session end. Learn how it works and when to enable it in your repository for Claude sessions. - Tags: how-to-guide - Published: 2026-08-01 ### [How the Codex Plugin Interacts with the Codex App Server: Architecture and Implementation](/openai/codex-plugin-cc/how-does-codex-plugin-interact-with-codex-app-server) Understand how the Codex plugin communicates with the Codex app server via JSON-RPC using STDIN/STDOUT or Unix domain sockets. Explore the architecture and implementation details. - Tags: architecture - Published: 2026-08-01 ### [How Job Files Are Structured in the Codex CC Plugin: JSON Schema and Data Fields](/openai/codex-plugin-cc/codex-plugin-job-file-structure-json-data) Understand Codex CC plugin job file structure. Explore JSON schema, identity metadata, state timestamps, payload data, and result objects for asynchronous operations. - Tags: internals - Published: 2026-07-31 ### [How the Codex Plugin Resolves the Workspace Root for State Storage and Job Tracking](/openai/codex-plugin-cc/codex-plugin-workspace-root-resolution-state-storage-job-tracking) Discover how the Codex plugin finds your workspace root for state storage and job tracking using Git detection or fallback to the current directory. - Tags: internals - Published: 2026-07-31 ### [How Adversarial Review Differs from Normal Review in the Codex Plugin: Focus and Steering Explained](/openai/codex-plugin-cc/codex-plugin-adversarial-review-vs-normal-review) Adversarial review uses custom focus text to steer analysis toward specific risks in the Codex plugin unlike normal review which ignores user input for a fixed contract. - Tags: deep-dive - Published: 2026-07-31 ### [How Job Cancellation Works in the OpenAI Codex Plugin: Process Termination and State Management](/openai/codex-plugin-cc/codex-plugin-job-cancellation-running-codex-processes) Discover how job cancellation works in the OpenAI Codex plugin. Learn about process termination, state management, and cancellation reporting for interrupted jobs. - Tags: internals - Published: 2026-07-31 ### [How the Codex Plugin Tracks and Manages Background Jobs Across Sessions](/openai/codex-plugin-cc/codex-plugin-background-jobs-tracking-storage-management) Discover how the Codex plugin expertly tracks and manages background jobs across sessions. Learn about its persistent storage and session isolation for seamless job continuity. - Tags: internals - Published: 2026-07-31 ### [Broker Architecture in the OpenAI Codex Plugin: When and How the Process Spawns](/openai/codex-plugin-cc/codex-plugin-broker-architecture-spawn-broker-process) Discover the lazy-start broker architecture in the OpenAI Codex plugin. Learn when and how a separate Node.js process spawns to mediate communication, ensuring efficient long-running task management. - Tags: architecture - Published: 2026-07-31 ### [How the Codex Plugin Communicates with the Codex App Server via JSON-RPC](/openai/codex-plugin-cc/how-does-the-plugin-communicate-with-the-codex-app-server-via-json-rpc) Learn how the Codex plugin communicates with the Codex app server using JSON-RPC. Discover its typed client, serialization methods, and real-time notification channels. - Tags: internals - Published: 2026-07-30 ### [How the Codex Plugin Interacts with the Codex App Server Using JSON-RPC](/openai/codex-plugin-cc/how-does-the-plugin-use-the-codex-app-server-protocol) Learn how the Codex plugin uses JSON-RPC to communicate with the Codex app server via STDIN/STDOUT pipes or Unix domain sockets. Understand request tracking and notification streaming. - Tags: internals - Published: 2026-07-30 ### [Read-Only vs Workspace-Write Sandbox Modes in Codex: Key Differences Explained](/openai/codex-plugin-cc/difference-between-read-only-and-workspace-write-sandbox-modes) Understand the key differences between Codex read-only and workspace-write sandbox modes. Learn how each mode impacts file system access for code reviews and rescue tasks. - Tags: deep-dive - Published: 2026-07-30 ### [How Background Jobs Work in the Codex Plugin: Lifecycle and Implementation](/openai/codex-plugin-cc/how-do-background-jobs-function-and-what-is-their-lifecycle) Discover how background jobs function in the Codex plugin. Learn about their lifecycle, asynchronous execution, and real-time progress monitoring in detached Node.js child processes. - Tags: internals - Published: 2026-07-30 ### [Codex Plugin Broker Lifecycle Management: A Deep Dive into the State Machine](/openai/codex-plugin-cc/codex-plugin-broker-lifecycle-management-explained) Explore the Codex plugin broker lifecycle management and its state machine. Learn how it handles session creation, negotiation, process spawning, health checks, and shutdown. - Tags: deep-dive - Published: 2026-07-29 ### [How Threads, Turns, and Job Records Work Together in the OpenAI Codex Plugin](/openai/codex-plugin-cc/codex-plugin-threads-turns-job-records-relationship) Understand how threads, turns, and job records in the OpenAI Codex plugin create persistent conversation sessions and track background tasks for resumability and status. - Tags: internals - Published: 2026-07-29 ### [How the Codex Plugin Handles Long-Running Tasks and Prevents Timeouts](/openai/codex-plugin-cc/codex-plugin-long-running-tasks-timeout-prevention) Learn how the Codex plugin handles long running tasks and prevents timeouts using runTrackedJob for state updates and terminateProcessTree for graceful cancellation. Boost your development. - Tags: internals - Published: 2026-07-29 ### [Codex Plugin Job State Files: Format, Structure, and Storage Location](/openai/codex-plugin-cc/codex-plugin-job-state-files-format-structure-on-disk) Explore the format, structure, and storage location of Codex plugin job state files. Learn how async jobs are saved as pretty-printed JSON in deterministic paths. - Tags: internals - Published: 2026-07-29 ### [Codex Plugin Error Handling and Retry Logic with the App Server](/openai/codex-plugin-cc/codex-plugin-error-handling-retry-logic-app-server) Learn how the Codex plugin handles errors and implements retry logic with the app server using ProtocolError, automatic fallback, exponential back-off, and graceful cleanup. - Tags: how-to-guide - Published: 2026-07-29 ### [Limitations of the Built-in Reviewer vs. Adversarial Review in Codex](/openai/codex-plugin-cc/codex-plugin-built-in-reviewer-vs-adversarial-review-limitations) Explore the limitations of Codex's built-in reviewer compared to adversarial review. Understand how each approach impacts design decisions and safety analysis for your code. - Tags: deep-dive - Published: 2026-07-29 ### [How the Codex Plugin Implements Turn Capture and Notification](/openai/codex-plugin-cc/codex-plugin-turn-capture-notification-system-implementation) Discover how the Codex plugin implements turn capture and notification. Learn about turn IDs, JSON-RPC events, and WebSocket routing with this detailed guide. - Tags: internals - Published: 2026-07-29 ### [How to Import External Agent Sessions into Codex: Step-by-Step Process](/openai/codex-plugin-cc/codex-plugin-import-external-agent-sessions-process) Learn how to import external agent sessions into Codex. Follow this step-by-step guide to construct a JSON payload and use the externalAgentConfigimport RPC for seamless integration. - Tags: how-to-guide - Published: 2026-07-29 ### [User-Level vs Project-Level Codex Config: Key Differences Explained](/openai/codex-plugin-cc/codex-plugin-user-level-vs-project-level-config-differences) Understand the key differences between user-level and project-level Codex config. Learn how they impact your development workflow and manage settings effectively. - Tags: deep-dive - Published: 2026-07-29 ### [How the Codex Plugin Tracks and Reports Job Progress in Real-Time](/openai/codex-plugin-cc/codex-plugin-real-time-job-progress-tracking-reporting) Discover how the Codex plugin tracks and reports job progress in real-time. Learn about its efficient JSON record persistence and in-memory state index for instant updates. - Tags: internals - Published: 2026-07-29 ### [What Happens When a Codex Job Is Cancelled Mid-Execution](/openai/codex-plugin-cc/what-happens-when-codex-job-cancelled-mid-execution) Discover what happens when a Codex job is cancelled mid-execution. Learn how the system terminates processes, interrupts remote turns, updates state, and confirms cancellation. - Tags: internals - Published: 2026-07-29 ### [How Hooks Integrate with Claude Code's Lifecycle in the Codex Plugin](/openai/codex-plugin-cc/how-codex-plugin-hooks-integrate-claude-code-lifecycle) Learn how Codex plugin hooks like SessionStart, SessionEnd, and Stop integrate with Claude Code's lifecycle to manage variables, background jobs, and review gates. - Tags: internals - Published: 2026-07-29 ### [Internal Architecture of the codex-companion.mjs Entry Point](/openai/codex-plugin-cc/codex-companion-mjs-entry-point-internal-architecture) Explore the internal architecture of codex-companion.mjs, the CLI entry point for Codex Companion. Understand its command parsing, job record creation, and handler delegation for efficient tool execution. - Tags: architecture - Published: 2026-07-29 ### [How the OpenAI Codex Plugin Detects and Manages Concurrent Codex Sessions](/openai/codex-plugin-cc/how-codex-plugin-detects-manages-concurrent-codex-sessions) Learn how the OpenAI Codex plugin detects and manages concurrent Codex sessions using unique session IDs and job tagging for isolated operations and efficient resource cleanup. - Tags: internals - Published: 2026-07-29 ### [Security Implications of the Workspace-Write Sandbox Mode in the Codex Plugin](/openai/codex-plugin-cc/codex-plugin-workspace-write-sandbox-security-implications) Understand the security implications of Codex plugin's workspace-write sandbox mode. Learn how unrestricted write access can lead to file modification and privilege escalation. - Tags: security - Published: 2026-07-29 ### [How the OpenAI Codex Plugin Handles Thread Resumption and Task Continuity](/openai/codex-plugin-cc/codex-plugin-thread-resumption-task-continuity-handling) Discover how the OpenAI Codex plugin ensures thread resumption and task continuity by persisting session identifiers and using a resume flag for seamless job reloading. - Tags: internals - Published: 2026-07-29 ### [How to Configure Custom Models and Reasoning Effort in the Codex Plugin](/openai/codex-plugin-cc/how-to-configure-custom-models-reasoning-effort-codex-plugin) Master the Codex plugin by configuring custom models and reasoning effort. Learn to set defaults in config file or use command flags for fine-tuned control. Boost your coding workflow. - Tags: how-to-guide - Published: 2026-07-29 ### [What Is the App Server Broker and How Does It Communicate with Codex?](/openai/codex-plugin-cc/what-is-app-server-broker-and-how-it-communicates-with-codex) Discover the app server broker, a JSON-RPC proxy connecting Claude Code to the Codex CLI. Learn how it enables concurrent processes to share a single Codex instance using Unix domain sockets. - Tags: deep-dive - Published: 2026-07-29 ### [Native Review vs Adversarial Review in the Codex Plugin: Key Differences Explained](/openai/codex-plugin-cc/codex-plugin-native-review-vs-adversarial-review-difference) Understand the key differences between native review and adversarial review in the Codex plugin. Learn how each method audits code for quality and identifies risks. - Tags: deep-dive - Published: 2026-07-29 ### [How Session Transfer from Claude to Codex Works Internally](/openai/codex-plugin-cc/how-does-session-transfer-claude-to-codex-work-internally) Discover how session transfer from Claude to Codex works. Learn about RPC migration, local transcript validation, JSON-RPC to Codex daemon, and ledger file retrieval. - Tags: internals - Published: 2026-07-29 ### [Review Gate Feature in the Codex Plugin: How It Blocks Claude Stop Commands](/openai/codex-plugin-cc/what-is-codex-plugin-review-gate-feature-and-how-it-blocks-claude-stop-command) Discover the Codex plugin review gate feature. Learn how it automatically reviews and blocks Claude stop commands, ensuring uninterrupted sessions. Read our in-depth analysis. - Tags: deep-dive - Published: 2026-07-29 ### [How the Codex Plugin Integrates with Claude Code's Background Job System](/openai/codex-plugin-cc/how-does-codex-plugin-integrate-claude-code-background-job-system) Discover how the Codex plugin integrates with Claude Code's background job system. Learn about unique job IDs, persistent logs, and native infrastructure delegation. Read now! - Tags: internals - Published: 2026-07-29 ### [How Codex Plugin Uses Notification Handlers to Track Thread, Turn, and Item Lifecycle Events](/openai/codex-plugin-cc/codex-plugin-notification-handlers-lifecycle) Explore how Codex plugin uses notification handlers like thread started and item completed to track lifecycle events. Learn about the custom handler on CodexAppServerClient. - Tags: internals - Published: 2026-07-28 ### [How the Codex Plugin Spawns Detached Background Workers for Long-Running Tasks](/openai/codex-plugin-cc/codex-plugin-subprocess-spawning-workers) Discover how the Codex plugin spawns detached background workers using Node.js child_process. Learn how to run long-running tasks independently of the parent CLI. - Tags: internals - Published: 2026-07-28 ### [Codex Plugin config.toml Configuration Options: Complete Reference for openai/codex-plugin-cc](/openai/codex-plugin-cc/codex-plugin-config-toml-options) Explore the complete reference for the Codex plugin's config.toml. Understand all configuration options for model selection, reasoning, API endpoints, and broker behavior. - Tags: api-reference - Published: 2026-07-28 ### [How the Codex Plugin Handles Concurrency When Running Multiple Codex Tasks Simultaneously](/openai/codex-plugin-cc/codex-plugin-concurrency-multiple-tasks) Discover how the Codex plugin handles concurrency for simultaneous tasks. Learn about independent jobs, isolated logs, and atomic file operations that prevent interference. - Tags: internals - Published: 2026-07-28 ### [External Agent Session Import and Error Handling in the Codex Plugin](/openai/codex-plugin-cc/codex-external-agent-session-import) Learn the external agent session import flow and error handling in the Codex plugin. Understand the two-step RPC workflow for file path validation, payload construction, and server completion with timeouts. - Tags: how-to-guide - Published: 2026-07-28 ### [How Job Log Files Are Created and Managed for Background Tasks in the OpenAI Codex Plugin](/openai/codex-plugin-cc/codex-plugin-background-job-log-management) Discover how OpenAI Codex plugin creates and manages job log files for background tasks. Learn about file paths, diagnostic entries, and log rotation for efficient storage. - Tags: internals - Published: 2026-07-28 ### [How the Codex Plugin Detects Verification Commands: tests, lint, and build](/openai/codex-plugin-cc/codex-plugin-detecting-verification-commands) Discover how the Codex plugin detects verification commands like test, lint, and build. Learn its regex parsing for automatic execution of crucial development steps. - Tags: internals - Published: 2026-07-28 ### [What Happens When Codex Returns an Error During Review or Task Execution](/openai/codex-plugin-cc/codex-error-handling-review-task) Learn what happens when Codex returns an error in review or task execution. Discover how openai/codex-plugin-cc handles errors, retries failures, and provides details for your handling. - Tags: how-to-guide - Published: 2026-07-28 ### [How the Codex Plugin Handles Structured Output Parsing for Review Results](/openai/codex-plugin-cc/codex-plugin-structured-output-parsing) Discover how the Codex plugin uses strict JSON schema validation to parse raw review text into typed objects with guaranteed fields for review results. - Tags: internals - Published: 2026-07-28 ### [How the Session Lifecycle Hook Manages Broker Endpoint Sharing in the Codex Plugin](/openai/codex-plugin-cc/codex-session-lifecycle-broker-sharing) Discover how the session lifecycle hook in the Codex plugin centralizes broker endpoint sharing by persisting connection details to a JSON state file, ensuring all Codex sessions share a single JSON-RPC broker. - Tags: internals - Published: 2026-07-28 ### [Codex Plugin Reasoning Effort Levels: Supported Values and Validation Logic](/openai/codex-plugin-cc/codex-reasoning-effort-levels) Discover the six supported reasoning effort levels for the OpenAI Codex plugin: none, minimal, low, medium, high, and xhigh. Learn about the validation logic in codex companion mjs. - Tags: api-reference - Published: 2026-07-28 ### [How the Codex Plugin Implements Model Aliasing: Mapping 'spark' to 'gpt-5.3-codex-spark'](/openai/codex-plugin-cc/codex-plugin-model-aliasing) Discover how the Codex plugin implements model aliasing with a lookup table and normalization function. Learn to map 'spark' to specific backend models. - Tags: internals - Published: 2026-07-28 ### [Working-Tree vs Branch Review Targets in the OpenAI Codex Plugin](/openai/codex-plugin-cc/codex-review-targets-working-tree-branch) Understand the difference between working tree and branch review targets in the OpenAI Codex plugin. Learn how each analyzes your code for effective reviews and improved workflows. - Tags: deep-dive - Published: 2026-07-28 ### [How the Codex Plugin Handles Authentication and Provider Configuration](/openai/codex-plugin-cc/codex-plugin-authentication-provider-config) Discover how the Codex plugin manages authentication and provider configuration by leveraging the Codex CLI and app-server for unified status and authorization. Learn more. - Tags: how-to-guide - Published: 2026-07-28 ### [What Happens When a Background Task Is Cancelled in Codex: Turn Interrupt or Process Termination?](/openai/codex-plugin-cc/codex-background-task-cancellation) Explore what happens when a background task is cancelled in Codex. Understand if it's a turn interrupt or process termination and how the system handles it. - Tags: internals - Published: 2026-07-28 ### [How Codex Thread IDs Are Tracked and Resumed Across Sessions](/openai/codex-plugin-cc/codex-thread-id-tracking-resumption) Discover how Codex thread IDs are tracked and resumed across sessions. Learn about the monotonic counter, JSON state file, and workspace-specific paths for seamless thread continuation using the `codex resume` command. - Tags: internals - Published: 2026-07-28 ### [Codex Plugin Broker vs Direct Connections: How OpenAI's Codex Plugin Handles App Server Communication](/openai/codex-plugin-cc/codex-plugin-broker-direct-connections) Discover how the Codex plugin handles app server communication, dynamically choosing between broker and direct connections using CodexAppServerClient.connect() for optimal performance. - Tags: architecture - Published: 2026-07-28 ### [TurnCaptureState: How Codex Tracks Turn Progress in the OpenAI Plugin](/openai/codex-plugin-cc/codex-turncapturestate-progress) Discover TurnCaptureState, the OpenAI Codex plugin's key data structure for tracking and recording interaction turns. Learn how it monitors thread hierarchies and aggregates artifacts for complete turn lifecycle management. - Tags: internals - Published: 2026-07-28 ### [How Session Transfer Between Claude Code and Codex Works: A Technical Deep Dive](/openai/codex-plugin-cc/codex-session-transfer-claude-code) Explore the 6-step process of session transfer between Claude Code and Codex. Learn how the codex transfer command imports Claude Code sessions into Codex threads via RPC. - Tags: deep-dive - Published: 2026-07-28 ### [How the Codex Plugin Manages Background Job Tracking and State Persistence](/openai/codex-plugin-cc/codex-plugin-background-job-tracking) Discover how the Codex plugin uses file-based JSON and text logs for robust background job tracking and state persistence, ensuring crash recovery and monitoring across restarts. - Tags: internals - Published: 2026-07-28 ### [What Is the Stop-Time Review Gate in the OpenAI Codex Plugin?](/openai/codex-plugin-cc/codex-plugin-stop-time-review-gate) Understand the stop-time review gate in the OpenAI Codex plugin. Learn when to enable this safety checkpoint for critical issue detection before session completion. - Tags: how-to-guide - Published: 2026-07-28 ### [Codex Review vs Adversarial Review: Understanding the Difference Between `/codex review` and `/codex adversarial-review`](/openai/codex-plugin-cc/codex-review-endpoints-differences) Discover the key differences between Codex review and adversarial review endpoints. Understand when to use /codex review for defects and /codex adversarial-review for design challenges. - Tags: deep-dive - Published: 2026-07-28 ### [How the Codex Plugin Integrates with the Codex App Server JSON-RPC Protocol](/openai/codex-plugin-cc/codex-plugin-jsonrpc-integration) Discover how the Codex plugin integrates with the Codex App Server JSON-RPC protocol. Explore type-safe communication via HTTP and WebSockets for seamless procedure calls and notifications. - Tags: how-to-guide - Published: 2026-07-28 ### [How to Debug When Job Status Shows Incorrect Information for Codex](/openai/codex-plugin-cc/how-to-debug-incorrect-codex-job-status) Debug incorrect job status in Codex by addressing persistence failures, async race conditions, or corrupted state files. Resolve stale data now. - Tags: how-to-guide - Published: 2026-07-18 ### [What Data Is Transferred During a Session Handoff to Codex?](/openai/codex-plugin-cc/what-data-transferred-during-session-handoff-to-codex) Discover what data transfers during a session handoff to Codex. Learn how your complete Claude conversation history is imported into Codex for seamless continuity. - Tags: how-to-guide - Published: 2026-07-18 ### [Understanding the CLAUDEPLUGINDATA Environment Variable in OpenAI Codex Plugin CC](/openai/codex-plugin-cc/what-is-claude-plugin-data-environment-variable-and-its-purpose) Learn about the CLAUDEPLUGINDATA environment variable. It provides a Base64 encoded JSON manifest to the Codex plugin, simplifying configuration for serverless and containerized apps. - Tags: deep-dive - Published: 2026-07-18 ### [How the Codex Plugin Captures, Stores, and Renders Job Outputs](/openai/codex-plugin-cc/how-are-job-outputs-captured-stored-and-rendered-codex-plugin) Discover how the Codex plugin captures, stores, and renders job outputs. Learn about stdout/stderr interception, log persistence, and UI-ready JSON transformation by the openai/codex-plugin-cc runtime. - Tags: internals - Published: 2026-07-18 ### [How to Resume a Previous Rescue Task After Interruption in Codex](/openai/codex-plugin-cc/how-to-resume-previous-rescue-task-after-interruption) Easily resume interrupted Codex rescue tasks. Learn how to use the --resume flag to pick up where you left off in the openai codex-plugin-cc repository. - Tags: how-to-guide - Published: 2026-07-18 ### [How the Codex Plugin Interacts with Codex Authentication State](/openai/codex-plugin-cc/how-does-plugin-interact-with-codex-authentication-state) Discover how the Codex plugin works with Codex authentication. It reuses your existing state by querying the local Codex CLI app-server via RPC, avoiding its own authentication flow. - Tags: internals - Published: 2026-07-18 ### [How the Job Cancellation Mechanism Works at the Process Level in OpenAI Codex](/openai/codex-plugin-cc/how-does-job-cancellation-mechanism-work-at-process-level) Discover how OpenAI Codex cancels background jobs at the process level. Learn about turn-interrupt messages, force-killing process trees, and updating job status. - Tags: internals - Published: 2026-07-18 ### [How Process Termination Works for Background Codex Jobs in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-does-process-termination-work-for-background-codex-jobs) Understand how OpenAI Codex Plugin terminates background jobs using taskkill and SIGTERM signals. Learn about the centralized terminateProcessTree helper for efficient process management. - Tags: internals - Published: 2026-07-18 ### [How Does the Codex Review Gate Work Internally](/openai/codex-plugin-cc/how-does-codex-review-gate-work-internally) Explore the internal workings of the Codex review gate an optional safety mechanism that blocks session stops if issues are detected during review. - Tags: internals - Published: 2026-07-18 ### [How the Codex Plugin Implements Progress Reporting for Long-Running Operations](/openai/codex-plugin-cc/how-codex-plugin-implements-progress-reporting-long-running-operations) Learn how the Codex plugin implements progress reporting for long-running operations. It captures SDK events, logs them, and provides live previews via the codex status command. - Tags: internals - Published: 2026-07-17 ### [How Review Targets Are Resolved (Working Tree vs Branch) in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-review-targets-resolved-working-tree-vs-branch-codex-plugin) Discover how the OpenAI Codex plugin resolves review targets between working tree and branch modes. Learn about explicit flags and automatic selection for clean repositories and uncommitted changes. - Tags: internals-guide - Published: 2026-07-17 ### [How the Codex Plugin Implements Job Persistence and Resumption: A Deep Dive into the State Store](/openai/codex-plugin-cc/how-codex-plugin-implements-job-persistence-resumption) Learn how the Codex plugin implements job persistence and resumption using a file based state store. This enables easy status querying and work resumption after restarts. - Tags: deep-dive - Published: 2026-07-17 ### [How the Codex Plugin Resolves Workspace Root and Configuration Precedence](/openai/codex-plugin-cc/how-codex-plugin-resolves-workspace-root-configuration-precedence) Discover how the Codex plugin resolves workspace root and configuration precedence using a three-tier hierarchy for seamless integration and customization in your projects. - Tags: internals - Published: 2026-07-17 ### [How the Codex Plugin Tracks and Manages Background Jobs Across Sessions](/openai/codex-plugin-cc/how-background-jobs-tracked-managed-across-sessions-codex-plugin) Discover how the Codex plugin tracks and manages background jobs across sessions using transient JSON files for robust state management and efficient filtering. - Tags: internals - Published: 2026-07-17 ### [How Session Transfer Works Between Claude Code and Codex](/openai/codex-plugin-cc/how-session-transfer-works-claude-code-codex) Learn how session transfer converts Claude Code .jsonl files to Codex threads using the codex transfer command. Understand the RPC calls and resumable thread ID return. - Tags: internals - Published: 2026-07-17 ### [How the Codex Plugin Communicates with the Codex App Server: JSON-RPC Protocol Explained](/openai/codex-plugin-cc/how-codex-plugin-communicates-with-codex-app-server) Understand how the Codex plugin communicates with the Codex app server using the JSON-RPC protocol via STDIN/STDOUT pipes or Unix domain sockets. - Tags: internals - Published: 2026-07-17 ### [How the OpenAI Codex Plugin Validates Command-Line Arguments: A Deep Dive into parseArgs](/openai/codex-plugin-cc/how-plugin-validate-command-line-arguments) Discover how the OpenAI Codex plugin validates command-line arguments using its robust parseArgs function. Learn about tokenization, requirement checks, and error handling for efficient plugin development. - Tags: deep-dive - Published: 2026-07-16 ### [How the Codex Plugin Collects Review Context from the Git Working Tree](/openai/codex-plugin-cc/how-codex-plugin-collect-review-context-git-working-tree) Discover how the Codex plugin gathers review context by analyzing Git commands, parsing diffs, and sending structured data to the Codex App Server for efficient code review. - Tags: internals - Published: 2026-07-16 ### [How the Codex Plugin Collects Review Context from a Git Branch](/openai/codex-plugin-cc/how-codex-plugin-collect-review-context-git-branch) Discover how the Codex plugin collects review context from a git branch. It detects commits, computes diffs, and sends structured data to the Codex App Server. Learn more now. - Tags: how-to-guide - Published: 2026-07-16 ### [How the Spark Model Alias Maps to gpt-5.3-codex-spark in OpenAI Codex Plugin CC](/openai/codex-plugin-cc/how-spark-model-alias-maps-gpt-5-3-codex-spark) Discover how the spark model alias maps to gpt-5.3-codex-spark in OpenAI Codex Plugin CC. Learn about the normalizeRequestedModel function and case insensitive lookups. - Tags: internals - Published: 2026-07-16 ### [Codex Plugin Model Aliases: Understanding the Spark Alias Mapping](/openai/codex-plugin-cc/what-model-aliases-supported-codex-plugin) Learn about the Codex plugin's spark alias and its mapping to gpt-5.3-codex-spark. Understand model aliases for OpenAI's Codex plugin. - Tags: api-reference - Published: 2026-07-16 ### [How the Codex Plugin Handles Thread Interruption: A Technical Deep Dive](/openai/codex-plugin-cc/how-codex-plugin-handle-thread-interruption) Discover how the Codex plugin handles thread interruption by sending a turn interrupt JSON-RPC request which cancels the operation and returns an interrupted status. Learn more here. - Tags: deep-dive - Published: 2026-07-16 ### [Broker Endpoint for Codex Communication: Platform-Specific Transport Mechanisms](/openai/codex-plugin-cc/what-is-broker-endpoint-codex-communication) Discover the broker endpoint for Codex communication. Learn how platform-specific transport mechanisms like Unix domain sockets and Windows named pipes enable seamless data exchange. - Tags: architecture - Published: 2026-07-16 ### [How the Codex Plugin Resolves State Directory Locations in openai/codex-plugin-cc](/openai/codex-plugin-cc/how-codex-plugin-resolve-state-directory-locations) Discover how the Codex plugin resolves state directory locations by hashing workspace roots and incorporating slugs, ensuring organized data storage. - Tags: internals - Published: 2026-07-16 ### [How the Codex Plugin Resolves Workspace Root Location in openai/codex-plugin-cc](/openai/codex-plugin-cc/how-codex-plugin-resolve-workspace-root-location) Learn how the Codex plugin finds your workspace root using git rev-parse --show-toplevel and falls back to your current directory when Git is unavailable. - Tags: deep-dive - Published: 2026-07-16 ### [Codex Plugin Reasoning Effort Levels: Understanding the Six Valid Options and Configuration Methods](/openai/codex-plugin-cc/what-reasoning-effort-levels-supported-codex-plugin) Explore the six reasoning effort levels for the Codex plugin: none, minimal, low, medium, high, and xhigh. Learn how to configure them using CLI flags or the config file. - Tags: deep-dive - Published: 2026-07-16 ### [How the Codex Plugin Handles Job State Persistence Across Restarts](/openai/codex-plugin-cc/how-plugin-handle-job-state-persistence-restarts) Learn how the Codex plugin ensures job state persistence across restarts by storing background job metadata in a JSON file. Recover job status, config, and output after any interruption. - Tags: internals - Published: 2026-07-16 ### [How the Codex Plugin Communicates with Codex: WebSocket RPC and Thread Management](/openai/codex-plugin-cc/how-codex-plugin-communicate-codex) Discover how the Codex plugin communicates with Codex using WebSocket RPC and thread management. Learn about the broker, CodexAppServerClient, and real-time notifications. - Tags: internals - Published: 2026-07-16 ### [How the Codex Plugin Persists Background Jobs: File-Based State Management](/openai/codex-plugin-cc/how-codex-plugin-persist-background-jobs) Learn how the Codex plugin persists background jobs using file based state management. It saves job states as JSON files for immediate durability. - Tags: internals - Published: 2026-07-16 ### [How the Codex Plugin Tracks Background Jobs: File-Based State Management](/openai/codex-plugin-cc/how-codex-plugin-track-background-jobs) Discover how the Codex plugin tracks background jobs using file-based state management. Learn about its session-scoped monitoring and automatic job pruning. - Tags: internals - Published: 2026-07-16 ### [How Background Jobs Are Managed in the OpenAI Codex Plugin: A Complete Technical Guide](/openai/codex-plugin-cc/how-background-jobs-managed-codex-plugin) Discover how the OpenAI Codex plugin manages background jobs using a file-based system. Learn about state storage, execution, and querying in this technical guide. - Tags: deep-dive - Published: 2026-07-16 ### [How Session Transfer Works Between Claude Code and Codex](/openai/codex-plugin-cc/how-session-transfer-work-claude-code-codex) Learn how session transfer works between Claude Code and Codex. Migrate Claude Code transcripts to Codex threads using the codex transfer command. - Tags: internals - Published: 2026-07-16 ### [Native Review vs Adversarial Review in the Codex Plugin: Complete Guide](/openai/codex-plugin-cc/difference-native-review-adversarial-review-codex-plugin) Discover the difference between native review and adversarial review in the Codex plugin. Learn how native review ensures correctness and adversarial review finds hidden risks. - Tags: deep-dive - Published: 2026-07-16 ### [What Triggers the Stop-Review-Gate in the OpenAI Codex Plugin](/openai/codex-plugin-cc/what-triggers-stop-review-gate-codex-plugin) Discover what triggers the stop-review-gate in the OpenAI Codex plugin. Learn how automatic safety checks halt the review pipeline before it starts. - Tags: internals - Published: 2026-07-16 ### [How the Stop-Review-Gate Functionality Works in openai/codex-plugin-cc: A Complete Technical Guide](/openai/codex-plugin-cc/how-does-stop-review-gate-work-openai-codex-plugin-cc) Understand the stop-review-gate in openai/codex-plugin-cc. This guide details how the automated safety layer reviews Claude turns, emitting ALLOW or BLOCK decisions to STDOUT. - Tags: deep-dive - Published: 2026-07-16 ### [How to Configure Different Codex API Base URLs with the OpenAI Codex Plugin](/openai/codex-plugin-cc/can-codex-plugin-work-with-different-codex-api-base-urls) Easily configure different Codex API base URLs for the OpenAI Codex plugin using environment variables or session files. Use self-hosted or regional endpoints without code changes. - Tags: how-to-guide - Published: 2026-07-15 ### [What Is SESSION_ID_ENV and How It Powers Session Tracking in the Codex Plugin](/openai/codex-plugin-cc/what-is-session-id-env-variable-and-how-is-it-used-in-codex-plugin) Discover how SESSION_ID_ENV powers session tracking in the Codex plugin by defining the CODEX_COMPANION_SESSION_ID environment variable for seamless session management. - Tags: internals - Published: 2026-07-15 ### [How the Codex Plugin Handles Git Repository Context for Code Reviews](/openai/codex-plugin-cc/how-codex-plugin-handles-git-repository-context-for-reviews) Learn how the Codex plugin uses a three-stage pipeline to detect Git repository context, select review modes, and collect diffs and metadata for effective code reviews. - Tags: how-to-guide - Published: 2026-07-15 ### [Difference Between --model and --effort Parameters in the Codex Plugin](/openai/codex-plugin-cc/difference-between-model-and-effort-parameters-in-codex-plugin) Understand the difference between --model and --effort in the Codex plugin. Learn how to select a language model and control its reasoning depth for optimal results. - Tags: deep-dive - Published: 2026-07-15 ### [How Codex Thread IDs Are Tracked and Stored Across Sessions](/openai/codex-plugin-cc/how-are-codex-thread-ids-tracked-and-stored-across-sessions) Learn how Codex thread IDs persist across sessions using a monotonic counter stored in a JSON state file. Ensure conversation continuity with OpenAI's Codex. - Tags: internals - Published: 2026-07-15 ### [How the Codex Plugin Validates Availability and Authentication: A Technical Deep Dive](/openai/codex-plugin-cc/how-codex-plugin-validates-codex-availability-and-authentication) Learn how the Codex plugin validates Codex availability and authentication by running CLI commands. Discover how it ensures your environment is ready for use. - Tags: deep-dive - Published: 2026-07-15 ### [Difference Between --write and Read-Only Sandbox Mode in the Codex Plugin](/openai/codex-plugin-cc/difference-between-write-and-read-only-sandbox-mode-in-codex-plugin) Understand the difference between --write and read-only sandbox modes in the Codex plugin. Learn when to allow edits and when to restrict to inspection-only. - Tags: deep-dive - Published: 2026-07-15 ### [Codex Plugin Hooks: SessionStart, SessionEnd, and Stop Events Explained](/openai/codex-plugin-cc/what-hooks-does-codex-plugin-register-and-when-do-they-trigger) Learn about Codex Plugin hooks: SessionStart, SessionEnd, and Stop. Discover when these crucial events trigger for session management and user aborts. - Tags: internals - Published: 2026-07-15 ### [How the OpenAI Codex Plugin Handles Job Persistence and State Management](/openai/codex-plugin-cc/how-codex-plugin-handles-job-persistence-and-state-management) Understand how the OpenAI Codex plugin ensures job persistence and state management through a file-based system supporting IDE reloads and process restarts. - Tags: internals - Published: 2026-07-15 ### [How to Configure Custom Models and Reasoning Effort for Codex Tasks](/openai/codex-plugin-cc/how-to-configure-custom-models-and-reasoning-effort-for-codex-tasks) Learn to configure custom models and reasoning effort for Codex tasks. Use CLI flags or a config file for flexible control over your development workflow. - Tags: how-to-guide - Published: 2026-07-15 ### [How to Run Codex Reviews in the Background and Track Progress in Claude Code](/openai/codex-plugin-cc/can-i-run-codex-reviews-in-background-and-how-to-track-progress) Learn to run Codex reviews asynchronously using the --background flag in Claude Code. Track job progress with codex status and get results easily. - Tags: how-to-guide - Published: 2026-07-15 ### [How to Transfer a Claude Code Session to Codex and Resume It There](/openai/codex-plugin-cc/how-to-transfer-claude-code-session-to-codex-and-resume-it-there) Effortlessly transfer your Claude Code session to Codex and resume your work. Use the simple command to convert transcripts and continue coding seamlessly. - Tags: how-to-guide - Published: 2026-07-15 ### [How the OpenAI Codex Plugin Review Gate Works and What Happens When It Blocks a Stop](/openai/codex-plugin-cc/how-does-openai-codex-plugin-review-gate-work-and-what-happens-when-it-blocks-a-stop) Understand the OpenAI Codex plugin review gate, its safety functions, and the consequences of a blocked stop. Learn how it automatically reviews changes before session termination. - Tags: deep-dive - Published: 2026-07-15 ### [How the Codex Plugin Tracks Resumable Tasks Across Claude Code Sessions Using Thread IDs](/openai/codex-plugin-cc/how-codex-plugin-tracks-resumable-tasks-across-claude-code-sessions-using-thread-ids) Discover how the Codex plugin tracks resumable tasks across Claude Code sessions with thread IDs. Learn how it persists thread metadata for seamless conversation continuation. - Tags: internals - Published: 2026-07-14 ### [Schema Validation Process for Review Output in Codex: A Technical Deep Dive](/openai/codex-plugin-cc/what-is-schema-validation-process-for-review-output-in-codex) Understand the Codex schema validation process for review output. Codex uses AJV to ensure review data includes essential fields like verdict, summary, and findings. - Tags: deep-dive - Published: 2026-07-14 ### [How the Codex Plugin Checks for Codex Availability and Guides Installation](/openai/codex-plugin-cc/how-codex-plugin-checks-codex-availability-and-guides-installation) Learn how the Codex plugin checks for Codex availability using CLI commands and guides users through installation with npm install -g @openai/codex. - Tags: how-to-guide - Published: 2026-07-14 ### [How Codex Creates and Rotates Job Log Files for Background Tasks](/openai/codex-plugin-cc/how-job-log-files-created-and-rotated-for-background-tasks-in-codex) Learn how Codex automatically creates and rotates job log files for background tasks. It prunes entries to the 50 most recent jobs, ensuring bounded disk usage and recent logs for debugging. - Tags: how-to-guide - Published: 2026-07-14 ### [How the OpenAI Codex Plugin Manages Broker Session State: Persistence and Lifecycle Control](/openai/codex-plugin-cc/how-plugin-manages-broker-session-state) Discover how the OpenAI Codex plugin manages broker session state by persisting it to a JSON file for efficient reuse and deterministic cleanup of resources. - Tags: internals - Published: 2026-07-14 ### [Lifecycle of the App Server Broker in the OpenAI Codex Plugin](/openai/codex-plugin-cc/what-is-lifecycle-of-app-server-broker-in-codex-plugin) Explore the eight phase lifecycle of the app server broker in the OpenAI Codex plugin. Learn how it manages session creation, endpoint negotiation, and graceful teardown. - Tags: internals - Published: 2026-07-14 ### [What Happens When a Codex Turn Times Out in openai/codex-plugin-cc](/openai/codex-plugin-cc/what-happens-when-codex-turn-times-out) Discover what happens when a Codex turn times out in openai/codex-plugin-cc. Learn how timeouts are detected, requests aborted, and partial output returned. - Tags: internals - Published: 2026-07-14 ### [How Job Cancellation Works in Codex: Process Trees and App-Server Turns](/openai/codex-plugin-cc/how-job-cancellation-works-for-process-trees-and-app-server-turns-in-codex) Understand Codex job cancellation, from interrupting app-server turns to terminating process trees. Learn how Codex ensures clean shutdowns. - Tags: deep-dive - Published: 2026-07-14 ### [Understanding Codex's Reasoning Effort Configuration and Its Impact on Internal Reasoning](/openai/codex-plugin-cc/what-is-reasoning-effort-configuration-in-codex-and-its-impact) Explore Codex reasoning effort configuration, from none to xhigh. Learn how it impacts latency, tokens, and answer quality for deterministic outputs. - Tags: internals - Published: 2026-07-14 ### [When to Use the workspace-write Sandbox Mode with the Codex Plugin](/openai/codex-plugin-cc/when-to-use-workspace-write-sandbox-mode-with-codex-plugin) Use workspace-write sandbox mode with the Codex plugin for file creation, modification, or generation during code generation, builds, or automated testing. - Tags: best-practices - Published: 2026-07-14 ### [When to Use Read-Only Sandbox Mode with the Codex Plugin](/openai/codex-plugin-cc/when-to-use-read-only-sandbox-mode-with-codex-plugin) Discover when to use read-only sandbox mode with the Codex plugin for code analysis and review. Optimize your workflow by understanding its capabilities. - Tags: best-practices - Published: 2026-07-14 ### [Read-Only vs Workspace-Write Sandbox Modes in Codex: A Technical Comparison](/openai/codex-plugin-cc/differences-between-read-only-and-workspace-write-sandbox-modes-in-codex) Understand the key differences between read-only and workspace-write sandbox modes in Codex. Learn how each mode impacts AI file access and modification for improved code analysis and safety. - Tags: deep-dive - Published: 2026-07-14 ### [How the Codex Plugin Persists Job State Across Claude Code Restarts](/openai/codex-plugin-cc/how-codex-plugin-persists-job-state-across-claude-code-restarts) Discover how the Codex plugin uses a file-based state store to persist job data and recover status, phase, and output after Claude Code restarts. - Tags: internals - Published: 2026-07-14 ### [How the Session Transfer Mechanism Converts Claude Conversations to Codex Threads](/openai/codex-plugin-cc/what-is-session-transfer-mechanism-for-converting-claude-conversations-to-codex-threads) Learn how the session transfer mechanism converts Claude conversations to Codex threads. Our plugin reads transcripts, maps messages, and pushes history via the Codex API. - Tags: internals - Published: 2026-07-14 ### [How the Review Gate Stop Hook Executes a Targeted Codex Review on Claude's Response](/openai/codex-plugin-cc/how-review-gate-stop-hook-executes-targeted-codex-review-on-claude-response) Discover how the review gate Stop hook executes a targeted Codex review on Claude's response, routing output through a specialized pipeline for structured feedback. - Tags: how-to-guide - Published: 2026-07-14 ### [How Tasks Are Spawned as Detached Processes for Background Jobs in Codex](/openai/codex-plugin-cc/how-tasks-spawned-as-detached-processes-for-background-jobs-with-codex) Learn how Codex spawns background jobs as detached processes using delivery detached. Explore how this enables the CLI to exit while the app server continues execution. - Tags: internals - Published: 2026-07-14 ### [Background Job Execution Architecture in the OpenAI Codex Plugin](/openai/codex-plugin-cc/what-is-architecture-for-background-job-execution-in-codex-plugin) Discover the background job execution architecture in the OpenAI Codex plugin. Learn how it uses detached Node.js child processes and JSON files for async tasks with status tracking and logs. - Tags: architecture - Published: 2026-07-14 ### [How the Codex Plugin Uses JSON-RPC to Communicate with the App Server](/openai/codex-plugin-cc/how-codex-plugin-uses-json-rpc-to-communicate-with-codex-app-server) Learn how the Codex plugin uses JSON-RPC to communicate with the Codex app server. Discover its type-safe protocol, HTTP POST requests, and WebSocket notifications for seamless integration. - Tags: internals - Published: 2026-07-14 ### [How the Codex Plugin Handles Cross-Platform Differences (Windows vs Unix)](/openai/codex-plugin-cc/plugin-cross-platform-differences-windows-unix) Discover how the openai/codex-plugin-cc handles cross-platform differences, checking process platform to adapt shells, utilities, and path separators for Windows and Unix. - Tags: internals - Published: 2026-07-13 ### [How Process Spawning and Termination Works for the Codex App-Server in openai/codex-plugin-cc](/openai/codex-plugin-cc/codex-app-server-process-spawning-termination) Learn how the Codex app server spawns child processes using nodejs child_process spawn and terminates them gracefully with SIGTERM or taskkill. - Tags: internals - Published: 2026-07-13 ### [Difference Between Adversarial and Normal Review in Codex: A Complete Guide](/openai/codex-plugin-cc/adversarial-vs-normal-codex-review) Understand the key differences between adversarial and normal review in Codex. Learn how each approach challenges code with distinct intents and outputs. - Tags: deep-dive - Published: 2026-07-13 ### [How Broker Endpoints Are Created and Socket Communication Is Managed in the Codex Plugin](/openai/codex-plugin-cc/broker-endpoint-creation-socket-communication) Learn how the Codex plugin creates broker endpoints and manages socket communication using platform-specific methods and JSON-RPC for efficient IPC. - Tags: internals - Published: 2026-07-13 ### [How Background Jobs Are Executed and Cancelled in Codex](/openai/codex-plugin-cc/background-job-execution-cancellation) Discover how background jobs execute and cancel in Codex. Learn about queuing, worker processes, and PID-based signal termination for efficient task management. - Tags: internals - Published: 2026-07-13 ### [How the Codex‑CC Plugin Resolves Workspace Roots: Git Detection and Fallback Strategy](/openai/codex-plugin-cc/plugin-resolve-workspace-roots) Discover how the Codex-CC plugin resolves workspace roots using Git detection and a fallback strategy for seamless development. Learn more. - Tags: internals - Published: 2026-07-13 ### [How State Persistence Is Implemented for Job Tracking in the OpenAI Codex Plugin](/openai/codex-plugin-cc/state-persistence-job-tracking) Discover how the OpenAI Codex plugin handles state persistence for job tracking using a file-based JSON store. Learn about metadata, progress, and log management. - Tags: internals - Published: 2026-07-13 ### [User-Level vs Project-Level Codex Configuration: A Complete Guide](/openai/codex-plugin-cc/difference-user-level-project-level-codex-configuration) Understand user-level vs project-level Codex configuration. Learn how global defaults in ~/.codex and repository-specific overrides in your project improve your workflow. - Tags: deep-dive - Published: 2026-07-12 ### [How the Codex Plugin Supports Different Reasoning Effort Levels](/openai/codex-plugin-cc/how-codex-plugin-supports-reasoning-effort-levels) Discover how the Codex plugin utilizes six effort levels from none to xhigh to control model reasoning intensity. Learn to leverage the --effort flag for tailored AI responses. - Tags: deep-dive - Published: 2026-07-12 ### [What Happens When the Codex App-Server Exits Unexpectedly: Error Handling Deep Dive](/openai/codex-plugin-cc/what-happens-when-codex-app-server-exits-unexpectedly) Discover what happens when the Codex app-server exits unexpectedly. Learn how `SpawnedCodexAppServerClient` handles errors, logs exit codes, and rejects pending RPC requests. - Tags: deep-dive - Published: 2026-07-12 ### [How Codex Plugin Job Log Files Are Created and Managed](/openai/codex-plugin-cc/how-codex-plugin-job-log-files-created-managed) Discover how the Codex plugin creates and manages job log files. Learn about log file generation, timestamped entries, and organized log rotation for efficient workspace management. - Tags: internals - Published: 2026-07-12 ### [How to Resume a Previous Codex Task Using the Plugin](/openai/codex-plugin-cc/how-to-resume-previous-codex-task-plugin) Effortlessly resume your previous Codex task with the companion script. Learn to use the `--resume-last` flag to automatically restore your session via the thread/resume API endpoint. - Tags: how-to-guide - Published: 2026-07-12 ### [Session Runtime Status Check in the Codex Plugin: Purpose and Implementation](/openai/codex-plugin-cc/codex-plugin-session-runtime-status-check-purpose) Understand the Codex plugin's session runtime status check purpose. It isolates Claude/Codex sessions and cleans up orphaned processes for robust session management. - Tags: internals - Published: 2026-07-12 ### [How the Codex Plugin Handles Job State Persistence: File-Based Architecture Explained](/openai/codex-plugin-cc/how-codex-plugin-handles-job-state-persistence) Discover how the Codex plugin ensures job state persistence with its file based architecture and JSON records. Learn how to manage data with CLAUDE_PLUGIN_DATA for durable job state. - Tags: internals - Published: 2026-07-12 ### [JSON-RPC Protocol Used by the Codex App Server: Implementation and Message Specification](/openai/codex-plugin-cc/what-is-codex-app-server-json-rpc-protocol) Explore the JSON-RPC protocol powering the Codex App Server. Understand its strict 2.0 implementation, request/response objects, and notification messaging for efficient communication. - Tags: api-reference - Published: 2026-07-12 ### [How the Codex Plugin Handles Codex Authentication Status](/openai/codex-plugin-cc/how-codex-plugin-handles-authentication-status) Discover how the Codex plugin manages Codex authentication by querying the local Codex CLI app-server for login status via ChatGPT or API key. - Tags: internals - Published: 2026-07-12 ### [Read-Only vs Workspace-Write Sandbox Modes in the Codex Plugin: A Complete Guide](/openai/codex-plugin-cc/codex-plugin-sandbox-modes-difference) Understand the difference between read-only and workspace-write sandbox modes in the Codex plugin. Learn how each mode handles file modifications for code reviews and automated tasks. - Tags: deep-dive - Published: 2026-07-12 ### [How the Codex Plugin Collects Git Diff Context for Code Reviews](/openai/codex-plugin-cc/how-codex-plugin-collects-git-diff-context) Discover how the Codex plugin collects git diff context for code reviews. Learn about its `collectReviewContext` function and how it optimizes payload size for efficient reviews. - Tags: how-to-guide - Published: 2026-07-12 ### [Configuration Options for the Codex Plugin: Complete Guide for openai/codex-plugin-cc](/openai/codex-plugin-cc/codex-plugin-configuration-options) Explore Codex plugin configuration options for openai/codex-plugin-cc. Master model, temperature, maxTokens, reviewGate, and more to control AI behavior and API connectivity. - Tags: api-reference - Published: 2026-07-12 ### [Codex Plugin Job ID Generation: How OpenAI's Codex Creates Unique Identifiers](/openai/codex-plugin-cc/how-codex-plugin-job-ids-generated-managed) Discover how the Codex plugin generates unique job IDs using semantic prefixes, base-36 timestamps, and random suffixes for collision-resistant identifiers in background operations. - Tags: internals - Published: 2026-07-12 ### [What Is the Broker Endpoint in the Codex Plugin and When Is It Used?](/openai/codex-plugin-cc/what-is-codex-plugin-broker-endpoint) Learn about the Codex plugin broker endpoint. Discover when to use this optional URL for routing requests and maintaining persistent connections for background tasks. - Tags: deep-dive - Published: 2026-07-12 ### [How the Codex Plugin Resolves the Workspace Root: Git Detection and Fallback Strategy](/openai/codex-plugin-cc/how-codex-plugin-resolves-workspace-root) Discover how the Codex plugin finds your workspace root using Git detection and a fallback strategy. Learn about the `git rev-parse` command and its reliable alternatives. - Tags: internals - Published: 2026-07-12 ### [What Happens When a Codex Task Is Cancelled by the Plugin: Complete Flow](/openai/codex-plugin-cc/what-happens-when-codex-task-is-cancelled) Discover what happens when a Codex task is cancelled by the plugin. Learn about job resolution, interrupt requests, process termination, state persistence, and confirmation. - Tags: internals - Published: 2026-07-12 ### [How to Configure Reasoning Effort for the Codex Plugin: CLI and Config Options](/openai/codex-plugin-cc/codex-plugin-reasoning-effort-configuration) Learn how to configure reasoning effort for the Codex plugin using CLI flags or config options. Explore all six supported effort levels for optimized performance. - Tags: how-to-guide - Published: 2026-07-12 ### [How the Codex Plugin Selects Which Model to Use: A Complete Guide](/openai/codex-plugin-cc/how-codex-plugin-selects-model) Understand how the Codex plugin selects an LLM model. Learn about parsing flags, alias normalization, and default model fallback for openai/codex-plugin-cc. - Tags: deep-dive - Published: 2026-07-12 ### [How Background Jobs Are Tracked and Managed in the Codex Plugin](/openai/codex-plugin-cc/how-are-codex-plugin-background-jobs-tracked-managed) Discover how the Codex plugin tracks and manages background jobs using its file-based persistence layer and specialized modules for efficient workflow control. - Tags: internals - Published: 2026-07-12 ### [Difference Between Adversarial-Review and Regular Review in the Codex Plugin](/openai/codex-plugin-cc/difference-between-adversarial-review-and-regular-review-codex) Understand the difference between regular review and adversarial review in the Codex plugin. Discover how adversarial review aggressively tests your code for risks. - Tags: deep-dive - Published: 2026-07-12 ### [How Session Transfer Between Claude Code and Codex Works: A Technical Deep Dive](/openai/codex-plugin-cc/how-does-session-transfer-work-claude-code-codex) Learn how session transfer between Claude Code and Codex works. Convert Claude transcript files to Codex threads with the `codex transfer` CLI command for seamless integration. - Tags: deep-dive - Published: 2026-07-12 ### [How the Review Gate Feature Works in the OpenAI Codex Plugin for Claude Code](/openai/codex-plugin-cc/what-is-codex-plugin-review-gate-feature) Discover how the OpenAI Codex plugin for Claude Code review gate feature works. This optional safety tool intercepts sessions to ensure final Codex review of code changes, blocking issues before they impact your project. - Tags: how-to-guide - Published: 2026-07-12 ### [How the Codex Plugin Communicates with the Codex App Server: JSON-RPC Architecture Explained](/openai/codex-plugin-cc/how-codex-plugin-communicates-codex-app-server) Discover how the Codex plugin communicates with the Codex App Server using JSON-RPC. Learn about direct process spawning and Unix domain socket connections. - Tags: architecture - Published: 2026-07-12 ### [runCommand vs runCommandChecked in OpenAI Codex Plugin: Key Differences Explained](/openai/codex-plugin-cc/codex-plugin-runcommand-vs-runcommandchecked-functions) Understand the crucial differences between runCommand and runCommandChecked in the OpenAI Codex plugin. Learn how each handles shell command execution and error management for efficient development. - Tags: deep-dive - Published: 2026-07-11 ### [How the Codex Plugin Handles Review Output Schemas for Structured Parsing](/openai/codex-plugin-cc/codex-plugin-review-output-schemas-structured-parsing) Learn how the Codex plugin handles review output schemas for structured parsing with its JSON schema-based approach, ensuring machine-readable review outputs and typed results. - Tags: internals - Published: 2026-07-11 ### [Codex Plugin Environment Variables: Complete Configuration Reference](/openai/codex-plugin-cc/codex-plugin-configuration-environment-variables) Discover all ten Codex plugin environment variables for configuration. Control session persistence, file locations, and server communication without code changes. Explore the complete reference. - Tags: api-reference - Published: 2026-07-11 ### [--resume vs --fresh Flags for Rescue Tasks in the Codex Plugin](/openai/codex-plugin-cc/codex-plugin-rescue-tasks-resume-vs-fresh-flags) Understand the difference between --resume and --fresh flags for Codex plugin rescue tasks. Learn when to continue an existing thread or start a fresh one to optimize your workflows. - Tags: deep-dive - Published: 2026-07-11 ### [Codex Plugin Job Cancellation Cleanup: Operations and Source Code Analysis](/openai/codex-plugin-cc/codex-plugin-job-cancellation-cleanup-operations) Explore Codex plugin job cancellation cleanup operations. Learn how OpenAI's plugin handles job termination, state persistence, and process removal for efficient resource management. Analyze the source code. - Tags: internals - Published: 2026-07-11 ### [How the Prompt Template Interpolation System Works in the Codex Plugin](/openai/codex-plugin-cc/codex-plugin-prompt-template-interpolation-system) Discover how the Codex plugin uses a lightweight regex engine to interpolate {{PLACEHOLDER}} tokens in Markdown templates with runtime values, removing external dependencies. - Tags: internals - Published: 2026-07-11 ### [How the Codex Plugin Handles Sandbox Modes: Read-Only vs Workspace-Write](/openai/codex-plugin-cc/codex-plugin-sandbox-modes-read-only-workspace-write) Discover how the Codex plugin manages sandbox modes read-only vs workspace-write. Learn how file system access is controlled and secured by default. - Tags: internals - Published: 2026-07-11 ### [How the Job Pruning Mechanism Works in the Codex Plugin: MAX_JOBS Explained](/openai/codex-plugin-cc/codex-plugin-job-pruning-mechanism-max-jobs-limit) Understand the Codex plugin's MAX_JOBS limit and job pruning. Learn how it prevents memory growth by keeping only the 50 newest job records. - Tags: internals - Published: 2026-07-11 ### [Valid Reasoning Effort Values for the Codex Plugin: Validation and Usage Guide](/openai/codex-plugin-cc/codex-plugin-valid-reasoning-effort-values-validation) Discover the six valid reasoning effort values for the Codex plugin: none minimal low medium high and xhigh. Learn how to use and validate these settings for optimal performance in your projects. - Tags: usage-guide - Published: 2026-07-11 ### [How the Codex Plugin Validates Native Review Requests and Handles Unsupported Targets](/openai/codex-plugin-cc/codex-plugin-native-review-request-validation-unsupported-targets) Learn how the Codex plugin validates native review requests by enforcing empty focus text and translating targets. Discover how it handles unsupported configurations with clear error messages. - Tags: how-to-guide - Published: 2026-07-11 ### [Codex Plugin Review Context Collection Process: How Git Diffs Are Gathered](/openai/codex-plugin-cc/codex-plugin-review-context-collection-git-diffs) Discover how the Codex plugin collects review context by gathering Git diffs. Learn about its Git commands and payload formatting for inline or separate diff fetching. - Tags: how-to-guide - Published: 2026-07-11 ### [How Claude Session Transfer to Codex Preserves Conversation Context](/openai/codex-plugin-cc/codex-plugin-claude-session-transfer-context-preservation) Learn how Claude session transfer to Codex preserves conversation context by reading the original JSONL transcript and recreating exact turn-by-turn history in a new thread. - Tags: deep-dive - Published: 2026-07-11 ### [How the Codex Plugin Background Task Spawning Mechanism Utilizes Detached Processes](/openai/codex-plugin-cc/codex-plugin-background-task-spawning-detached-processes) Discover how the Codex plugin background task spawning mechanism uses detached processes for robust task execution, even after parent termination. Learn more about task-worker mode. - Tags: internals - Published: 2026-07-11 ### [OpenAI Codex Plugin Model Aliases and Reasoning Effort Levels: Complete Configuration Guide](/openai/codex-plugin-cc/codex-plugin-supported-model-aliases-reasoning-effort) Explore OpenAI Codex plugin model aliases and reasoning effort levels. Configure gpt-5.4, gpt-5.4-mini, and effort levels using project files, CLI flags, or API calls. - Tags: how-to-guide - Published: 2026-07-11 ### [How the Codex Plugin Job File Storage System Works: JSON Metadata and Log Persistence](/openai/codex-plugin-cc/codex-plugin-job-file-storage-persistence) Explore the Codex plugin's file-based job store. Learn how it persists background tasks using JSON metadata and log files for robust execution tracking without external databases. - Tags: internals - Published: 2026-07-11 ### [How Codex Thread IDs, Turn IDs, and Session IDs Are Correlated in the Claude Code Plugin](/openai/codex-plugin-cc/codex-plugin-thread-turn-session-id-correlation) Understand how Codex Thread IDs, Turn IDs, and Session IDs correlate in the Claude Code Plugin. Discover how these IDs track operations, exchanges, and sessions for the openai codex plugin cc. - Tags: internals - Published: 2026-07-11 ### [Native Review vs Adversarial Review in the Codex Plugin: Key Differences Explained](/openai/codex-plugin-cc/codex-plugin-native-vs-adversarial-review) Understand native review vs adversarial review in the Codex plugin codebase. Discover how native review ensures quality and adversarial review uncovers hidden failure modes. - Tags: deep-dive - Published: 2026-07-11 ### [How terminateProcessTree Handles Cross-Platform Process Killing in the OpenAI Codex Plugin](/openai/codex-plugin-cc/codex-plugin-terminate-process-tree-cross-platform) Discover how OpenAI Codex plugin's terminateProcessTree function kills cross-platform processes using platform-specific commands, ensuring reliable process management. - Tags: internals - Published: 2026-07-11 ### [How the Codex Plugin Resolves Workspace Roots and Uses SHA-256 Hashing](/openai/codex-plugin-cc/codex-plugin-workspace-root-resolution-sha256) Discover how the Codex plugin finds workspace roots and uses SHA-256 hashing for unique, safe file system identifiers. Learn about its directory traversal and fallback methods. - Tags: internals - Published: 2026-07-11 ### [Stop Review Gate Mechanism in the OpenAI Codex Plugin: Integration with Claude's Lifecycle](/openai/codex-plugin-cc/codex-plugin-stop-review-gate-claude-integration) Understand the stop review gate mechanism in OpenAI Codex plugin. Learn how it automatically reviews code changes and integrates with Claude's lifecycle to control session termination. - Tags: internals - Published: 2026-07-11 ### [How OpenAI Codex Plugin Manages Background Job State and Persistence](/openai/codex-plugin-cc/codex-plugin-background-job-state-persistence) Discover how the OpenAI Codex plugin manages background job state and persistence. Learn about its JSON file system, automatic pruning, and detailed log files for efficient workflow management. - Tags: internals - Published: 2026-07-11 ### [How the Codex Plugin Handles Structured Output Parsing from Codex Models](/openai/codex-plugin-cc/how-plugin-handles-structured-output-parsing-from-codex) Learn how the Codex plugin transforms Codex model responses into type-safe JavaScript objects by parsing JSON and validating against schemas with ajv. - Tags: internals - Published: 2026-07-10 ### [Session Runtime Status Check in Codex: How It Manages Shared vs Direct Execution](/openai/codex-plugin-cc/what-is-session-runtime-status-check-and-why-is-it-needed) Learn how Codex's session runtime status check optimizes resource usage by deciding to reuse a shared broker or launch a new private process for shared vs direct execution. - Tags: deep-dive - Published: 2026-07-10 ### [How Codex Resolves Review Targets: Working-Tree vs Branch Detection](/openai/codex-plugin-cc/how-are-review-targets-resolved-working-tree-vs-branch) Learn how Codex resolves review targets using working-tree or branch detection. Understand the logic behind its automatic detection and CLI flag evaluation. - Tags: internals - Published: 2026-07-10 ### [What Happens When a Codex Turn Is Interrupted Mid-Execution: Inside the OpenAI Codex Plugin](/openai/codex-plugin-cc/what-happens-when-codex-turn-is-interrupted-mid-execution) Discover what happens when an OpenAI Codex turn is interrupted mid-execution. Learn how the app-server handles unfinished work and signals completion. - Tags: internals - Published: 2026-07-10 ### [How the Codex Plugin Handles Model Aliases Like `spark`](/openai/codex-plugin-cc/how-plugin-handles-model-aliases-like-spark) Discover how the Codex plugin uses a lookup map in codex companion mjs to resolve model aliases like spark to full identifiers, ensuring command consistency and catalog integrity. - Tags: internals - Published: 2026-07-10 ### [Workspace-Write vs Read-Only Sandbox Modes in Codex](/openai/codex-plugin-cc/difference-between-workspace-write-and-read-only-sandbox) Understand workspace-write versus read-only sandbox modes in Codex. Learn how read-only restricts file changes while workspace-write allows AI to edit, create, and delete files in your repository. - Tags: deep-dive - Published: 2026-07-10 ### [How External Agent Sessions Are Imported into Codex: A Technical Deep Dive](/openai/codex-plugin-cc/how-are-external-agent-sessions-imported-into-codex) Learn how Codex imports external agent sessions. Discover the migration payload, RPC process, and thread ID ledger in this technical deep dive into the openai/codex-plugin-cc repository. - Tags: deep-dive - Published: 2026-07-10 ### [Difference Between `--resume` and `--fresh` Flags in Codex: Routing Controls Explained](/openai/codex-plugin-cc/difference-between-resume-and-fresh-flags) Understand the difference between Codex --resume and --fresh flags. --resume continues your last session, while --fresh starts a new one. Learn routing controls for openai/codex-plugin-cc. - Tags: deep-dive - Published: 2026-07-10 ### [Configuration Options Supported in the `.codex/config.toml` File](/openai/codex-plugin-cc/what-configuration-options-are-supported-in-codex-config-toml) Explore supported configuration options in codex/config.toml. Customize model, API, and broker settings for optimal OpenAI Codex plugin performance. - Tags: api-reference - Published: 2026-07-10 ### [How Job IDs Are Generated and Tracked in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-are-job-ids-generated-and-tracked) Discover how the OpenAI Codex plugin generates unique collision-resistant job IDs using timestamps and random suffixes. Learn about the generateJobId function for background task tracking. - Tags: internals - Published: 2026-07-10 ### [How Thread Persistence and Resume Functionality Work in Codex](/openai/codex-plugin-cc/how-thread-persistence-and-resume-works) Learn how Codex implements thread persistence and resume functionality. Discover how to save and restart conversational sessions with ephemeral set to false for durable state. - Tags: internals - Published: 2026-07-10 ### [What Sandbox Modes Are Available in Codex and When to Use Each](/openai/codex-plugin-cc/what-sandbox-modes-are-available-and-when-to-use-each) Explore Codex sandbox modes: read-only for safe analysis and workspace-write for development. Learn when to use each mode for your tasks. - Tags: deep-dive - Published: 2026-07-10 ### [How the OpenAI Codex Plugin Resolves Git Context for Code Reviews](/openai/codex-plugin-cc/how-plugin-resolves-git-context-for-code-reviews) Discover how the OpenAI Codex plugin resolves Git context for code reviews by analyzing repositories, collecting diffs, and managing token limits for efficient analysis. - Tags: how-to-guide - Published: 2026-07-10 ### [What Is the App Server Broker Endpoint in the OpenAI Codex Plugin?](/openai/codex-plugin-cc/what-is-app-server-broker-endpoint-and-how-is-it-used) Understand the OpenAI Codex plugin's app server broker endpoint a URI that mediates client and local app-server communication. Learn its crucial role in plugin functionality. - Tags: api-reference - Published: 2026-07-10 ### [How the Codex Plugin Handles Progress Reporting for Long-Running Tasks](/openai/codex-plugin-cc/how-plugin-handles-progress-reporting-for-long-running-tasks) Discover how the Codex plugin reports progress for long-running tasks. Learn about its incremental SDK event capture, logging, and status command for real-time updates. - Tags: internals - Published: 2026-07-10 ### [How Codex Models and Reasoning Efforts Are Normalized in openai/codex-plugin-cc](/openai/codex-plugin-cc/how-codex-models-and-reasoning-efforts-normalized) Discover how the openai/codex-plugin-cc normalizes Codex models and reasoning efforts for consistent internal representation and to prevent typos. Learn more now! - Tags: internals - Published: 2026-07-10 ### [How Job Persistence and State Management Work in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-job-persistence-and-state-management-works) Learn how the OpenAI Codex plugin ensures job persistence and state management using its JSON state file and workspace directory for durable tracking across restarts. Explore its robust architecture. - Tags: internals - Published: 2026-07-10 ### [Background Job Architecture for Codex Tasks: How the Codex Plugin Manages Detached Workers](/openai/codex-plugin-cc/what-is-background-job-architecture-for-codex-tasks) Explore the background job architecture for Codex tasks. Learn how detached Node workers manage jobs via JSON persistence and disk-streamed logs with the Codex Plugin. - Tags: architecture - Published: 2026-07-10 ### [How Session Transfer Works Between Claude Code and Codex: A Technical Deep Dive](/openai/codex-plugin-cc/how-session-transfer-works-between-claude-code-and-codex) Learn how session transfer between Claude Code and Codex works. This technical deep dive explains the validated import pipeline for seamless conversation continuity. - Tags: deep-dive - Published: 2026-07-10 ### [How the Stop-Time Review Gate Works in the Claude-Codex Workflow](/openai/codex-plugin-cc/how-stop-time-review-gate-works-in-claude-codex-workflow) Discover how the stop-time review gate in the Claude-Codex workflow ensures session safety. Learn how Codex reviews code changes and approves or blocks termination. - Tags: internals - Published: 2026-07-10 ### [/codex:review vs /codex:adversarial-review: Key Differences in OpenAI's Codex Plugin](/openai/codex-plugin-cc/difference-between-codex-review-and-codex-adversarial-review-commands) Understand the key differences between OpenAI's /codex:review and /codex:adversarial-review commands. Discover how each approach enhances your code quality. - Tags: deep-dive - Published: 2026-07-10 ### [How the Codex Plugin Integrates with the Codex App Server Protocol: A Complete Technical Guide](/openai/codex-plugin-cc/how-codex-plugin-integrates-with-codex-app-server-protocol) Learn how the Codex plugin integrates with the Codex app server protocol via JSON-RPC for seamless thread management, review execution, and turn-based output capture. Explore technical details. - Tags: deep-dive - Published: 2026-07-10 ### [How to Cancel a Background Codex Job and Interrupt Turns: A Complete Technical Guide](/openai/codex-plugin-cc/what-happens-when-background-job-is-cancelled-specifically-how-are-turns-interrupted) Learn to cancel a background Codex job and interrupt turns. Understand how `/codex:cancel` terminates processes and updates job status in this technical guide. - Tags: deep-dive - Published: 2026-07-09 ### [Codex Reasoning Effort Levels and Model Aliases: Complete Reference for the OpenAI Plugin](/openai/codex-plugin-cc/what-are-supported-reasoning-effort-levels-and-model-aliases-for-codex-in-plugin) Discover Codex reasoning effort levels none minimal low medium high xhigh and the spark model alias for the OpenAI plugin. Get the complete reference for optimal performance. - Tags: api-reference - Published: 2026-07-09 ### [How the Codex Plugin Manages Authentication and Provider Configuration](/openai/codex-plugin-cc/how-does-codex-plugin-manage-authentication-and-provider-configuration-for-codex) Learn how the Codex plugin manages authentication and provider configuration by delegating to the Codex CLI. Discover how account info and global settings create a unified status object. - Tags: internals - Published: 2026-07-09 ### [How the Background Job Execution and Tracking System Works in the Codex Plugin](/openai/codex-plugin-cc/how-does-background-job-execution-and-tracking-system-work-in-codex-plugin) Explore the Codex plugin's background job system. Learn how detached Node.js processes, JSON state files, and log files track review, rescue, and generic tasks for seamless progress monitoring. - Tags: internals - Published: 2026-07-09 ### [Difference Between Native Reviews and Adversarial Reviews in the Codex Plugin](/openai/codex-plugin-cc/what-is-difference-between-native-reviews-and-adversarial-reviews-in-codex-plugin) Understand the distinction between native and adversarial reviews in the OpenAI Codex plugin. Learn how each command assesses code quality and identifies risks for improved development. - Tags: deep-dive - Published: 2026-07-09 ### [How Prompt Interpolation Works in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-does-prompt-interpolation-work-codex-plugin) Understand how OpenAI Codex plugin interpolates prompts by loading Markdown templates and substituting {{PLACEHOLDER}} tokens with runtime values via strict uppercase regex. - Tags: deep-dive - Published: 2026-07-08 ### [Codex Review Scope Options: auto, working-tree, and branch Explained](/openai/codex-plugin-cc/what-are-scope-options-working-tree-branch-auto-reviews) Understand Codex review scope options auto, working-tree, and branch. Learn how each setting impacts your review process and choose the best one for your workflow. - Tags: deep-dive - Published: 2026-07-08 ### [How the Codex Plugin Handles Job Status Polling: CLI Architecture and Implementation](/openai/codex-plugin-cc/how-does-codex-plugin-handle-job-status-polling) Discover how the Codex plugin handles job status polling. Explore the CLI architecture and implementation details within codex-companion.mjs for efficient status checks. - Tags: internals - Published: 2026-07-08 ### [What Is the Session Lifecycle Hook in the Codex Plugin?](/openai/codex-plugin-cc/what-is-session-lifecycle-hook-codex-plugin) Understand the session lifecycle hook in the Codex plugin. Learn how this built-in hook automatically manages environment setup and cleanup for every user session. Boost your plugin development. - Tags: internals - Published: 2026-07-08 ### [How the Codex Plugin Validates Native Review Requests](/openai/codex-plugin-cc/how-does-codex-plugin-validate-native-review-requests) Discover how the Codex plugin validates native review requests by checking focus text, translating targets, and rejecting unsupported modes for seamless integration. - Tags: how-to-guide - Published: 2026-07-08 ### [How Does the Codex Plugin Check for Codex Availability?](/openai/codex-plugin-cc/how-does-codex-plugin-check-codex-availability) Discover how the Codex plugin checks Codex availability using a two-stage probe: verifying the codex binary and confirming app-server support for a consolidated status. - Tags: how-to-guide - Published: 2026-07-08 ### [How to Use `--resume` and `--fresh` Flags in Codex Rescue Tasks](/openai/codex-plugin-cc/what-are-resume-and-fresh-flags-codex-rescue-tasks) Learn to use --resume and --fresh flags in Codex rescue tasks. Continue or start new threads efficiently with these powerful options for OpenAI's codex-plugin-cc repository. - Tags: how-to-guide - Published: 2026-07-08 ### [How Job IDs Are Generated for the Codex Plugin: A Deep Dive into the Source Code](/openai/codex-plugin-cc/how-are-job-ids-generated-codex-plugin) Discover how job IDs are generated for the Codex plugin. Explore the source code to understand the prefix, timestamp, and random suffix combination. - Tags: internals - Published: 2026-07-08 ### [How `runAppServerTurn` Works in the OpenAI Codex Plugin: A Complete Guide](/openai/codex-plugin-cc/how-does-runappserverturn-function-work-codex-plugin) Discover how runAppServerTurn in the OpenAI Codex Plugin manages prompt-response cycles. This guide details environment validation, connection management, and result aggregation for your app server integration. - Tags: deep-dive - Published: 2026-07-08 ### [Codex App Server Protocol: JSON-RPC 2.0 Transport for the OpenAI Codex Plugin](/openai/codex-plugin-cc/what-is-codex-app-server-protocol) Learn about the Codex App Server protocol a lightweight JSON-RPC 2.0 transport for the OpenAI Codex plugin. Discover its STDIO and Unix socket connection support. - Tags: api-reference - Published: 2026-07-08 ### [Difference Between `/codex:review` and `/codex:adversarial-review` in OpenAI's Codex Plugin](/openai/codex-plugin-cc/difference-between-codex-review-and-codex-adversarial-review) Understand the difference between /codex:review and /codex:adversarial-review in OpenAI's Codex plugin. Learn how each command performs code analysis and identifies potential issues. - Tags: deep-dive - Published: 2026-07-08 ### [Where Is the Codex Plugin State Stored? A Deep Dive into openai/codex-plugin-cc](/openai/codex-plugin-cc/where-is-codex-plugin-state-stored) Discover where the Codex plugin state is stored in the openai/codex-plugin-cc repository. Learn about its local file system storage, CLAUDE_PLUGIN_DATA, and os.tmpdir() fallback for detailed insights. - Tags: deep-dive - Published: 2026-07-08 ### [What Hooks Does the Codex Plugin Register? SessionStart, SessionEnd, and Stop Explained](/openai/codex-plugin-cc/what-hooks-does-codex-plugin-register) Discover the Codex plugin's SessionStart, SessionEnd, and Stop hooks. Learn how these events trigger Node.js scripts for session management and control. - Tags: internals - Published: 2026-07-08 ### [Supported Model Aliases in the OpenAI Codex Plugin](/openai/codex-plugin-cc/what-are-supported-model-aliases-codex-plugin) Discover the supported model aliases for the OpenAI Codex plugin. Learn how the spark alias maps to gpt-5.3-codex-spark for efficient coding. - Tags: api-reference - Published: 2026-07-08 ### [How Session Transfer Between Claude Code and Codex Works](/openai/codex-plugin-cc/what-is-session-transfer-between-claude-code-and-codex) Understand Claude Code session transfer to Codex. Convert Claude transcripts to Codex threads with the `codex resume` command and continue your work seamlessly. - Tags: internals - Published: 2026-07-08 ### [How the Codex Plugin Manages Background Jobs: Architecture and Implementation](/openai/codex-plugin-cc/how-does-codex-plugin-manage-background-jobs) Discover how the Codex plugin manages background jobs using JSON state files, detached Node processes, and detailed progress tracking. Learn the architecture and implementation. - Tags: architecture - Published: 2026-07-08 ### [Understanding the Stop-Time Review Gate in the OpenAI Codex Plugin](/openai/codex-plugin-cc/what-is-stop-time-review-gate-feature-codex-plugin) Learn about the stop time review gate, an optional safety checkpoint in the OpenAI Codex Plugin, that reviews Claude turns before session completion. - Tags: deep-dive - Published: 2026-07-08 ### [How the OpenAI Codex Plugin Interacts with the Local Codex CLI: Architecture and Implementation](/openai/codex-plugin-cc/how-does-openai-codex-plugin-interact-with-local-codex-cli) Discover how the OpenAI Codex plugin interacts with the local Codex CLI using a JSON-RPC client. Learn about its architecture, process spawning, and socket connections for seamless integration. - Tags: architecture - Published: 2026-07-08 ### [Configuration Precedence and Project Trust in the Codex Plugin](/openai/codex-plugin-cc/what-is-configuration-precedence-and-how-is-project-trust-handled) Understand Codex plugin configuration precedence. Discover how project trust dictates the application of user and project level settings on the openai/codex-plugin-cc repository. - Tags: deep-dive - Published: 2026-07-07 ### [How Session Import and External Agent Transfer Work in Codex](/openai/codex-plugin-cc/how-does-session-import-and-external-agent-transfer-work-with-codex) Learn how Codex imports Claude chat sessions and handles external agent transfers by validating paths, creating migration payloads, and confirming completion. - Tags: internals - Published: 2026-07-07 ### [Difference Between Shared and Direct Codex Runtime Modes in openai/codex-plugin-cc](/openai/codex-plugin-cc/what-is-the-difference-between-shared-and-direct-codex-runtime-modes) Understand the shared and direct Codex runtime modes. Learn how shared delegates execution via plugins while direct bypasses them for manual terminal invocation. - Tags: deep-dive - Published: 2026-07-07 ### [How to Run Reviews Against Branch Comparisons in Codex](/openai/codex-plugin-cc/how-to-run-reviews-against-branch-comparisons-in-codex) Master branch comparisons in Codex. Run reviews against branch comparisons using the /codex:review command to simplify code reviews and track changes effectively. - Tags: how-to-guide - Published: 2026-07-07 ### [How Workspace Root Resolution and Project Detection Work in Codex Plugin CC](/openai/codex-plugin-cc/how-does-workspace-root-resolution-and-project-detection-work) Learn how the Codex Plugin CC resolves workspace roots by checking Git and falling back to your current directory for reliable project detection and state management. - Tags: internals - Published: 2026-07-07 ### [Understanding the Thread and Turn Lifecycle in Codex](/openai/codex-plugin-cc/what-is-the-lifecycle-of-a-thread-and-turn-in-codex) Explore the thread and turn lifecycle in Codex. Learn how threads are created via RPC, turns emit events, and state persists through atomic updates for robust conversation management. - Tags: internals - Published: 2026-07-07 ### [How to Resume Previous Codex Tasks in Claude Code: Complete Guide](/openai/codex-plugin-cc/how-can-i-resume-previous-codex-tasks-or-jobs) Learn to resume previous Codex tasks in Claude Code using --resume-last or --resume. This guide explains how to retrieve thread IDs and continue conversations seamlessly with the Codex App-Server. - Tags: how-to-guide - Published: 2026-07-07 ### [How to Manage Multiple Concurrent Codex Sessions Effectively](/openai/codex-plugin-cc/how-to-manage-multiple-concurrent-codex-sessions-effectively) Master concurrent Codex sessions with Claude Code. Learn to manage multiple sessions effectively using per-session bookkeeping and state persistence, ensuring seamless development. - Tags: how-to-guide - Published: 2026-07-07 ### [How to Handle Job Cancellation and Turn Interruption with Codex](/openai/codex-plugin-cc/how-to-handle-job-cancellation-and-turn-interruption-with-codex) Learn to handle job cancellation and turn interruption with Codex CLI. Discover how to resolve active jobs and send interrupt RPC requests effectively. - Tags: how-to-guide - Published: 2026-07-07 ### [Adversarial Review vs Regular Review in Codex: Key Differences Explained](/openai/codex-plugin-cc/what-is-the-difference-between-adversarial-review-and-regular-review-in-codex) Understand the key differences between adversarial review and regular review in OpenAI Codex. Learn how adversarial review questions assumptions while regular review checks for bugs and style. - Tags: deep-dive - Published: 2026-07-07 ### [How Job Tracking and Persistence Work in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-does-job-tracking-and-persistence-work-in-codex-plugin) Understand job tracking and persistence in the OpenAI Codex plugin. Learn how session UUIDs and JSON serialization ensure crash recovery and graceful cancellation in your companion process. - Tags: internals - Published: 2026-07-07 ### [How to Configure Codex Models and Reasoning Effort in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-can-i-configure-codex-models-and-reasoning-effort) Learn to configure OpenAI Codex models and reasoning effort using runtime selection, command-line flags, or config files. Optimize your plugin performance today. - Tags: how-to-guide - Published: 2026-07-07 ### [How the Review Gate Feature and Stop Hook Operate in Codex](/openai/codex-plugin-cc/how-does-review-gate-feature-and-stop-hook-operate-in-codex) Understand how Codex review gate and stop hook features work. Learn about the per-workspace flag that enables mandatory stop-time reviews, blocking sessions if needed. - Tags: internals - Published: 2026-07-07 ### [How Session Transfer Between Claude Code and Codex Works: Complete Pipeline Guide](/openai/codex-plugin-cc/what-is-the-process-for-session-transfer-between-claude-code-and-codex) Understand how Claude Code session transfer works with Codex. Learn the complete pipeline for importing transcripts and creating resumable threads in this guide. - Tags: deep-dive - Published: 2026-07-07 ### [How Background Job Execution Works in the Codex Plugin: A Deep Dive into the OpenAI Codex Companion](/openai/codex-plugin-cc/how-does-background-job-execution-function-within-codex-plugin) Explore how the Codex plugin handles background job execution. Learn how detached Node.js processes, JSON state files, and log streaming enable long-running tasks to persist post CLI exit. - Tags: deep-dive - Published: 2026-07-07 ### [How Codex-Plugin-CC Manages Platform Differences Between Windows and Unix for Process Management](/openai/codex-plugin-cc/how-codex-plugin-cc-handles-windows-vs-unix-process-management) Discover how Codex-Plugin-CC bridges Windows and Unix process management gaps using platform-aware utilities in process.mjs for seamless shell execution and termination. - Tags: internals - Published: 2026-07-07 ### [Codex Rescue Resume vs Fresh: Using --resume and --fresh in codex-plugin-cc](/openai/codex-plugin-cc/codex-plugin-cc-resume-vs-fresh-rescue-task) Learn the difference between codex-plugin-cc --resume and --fresh for rescue tasks. Continue existing threads with --resume or start new investigations with --fresh. - Tags: how-to-guide - Published: 2026-07-07 ### [How codex-plugin-cc Manages State Separately from Codex Internal Configuration](/openai/codex-plugin-cc/what-is-the-relationship-between-codex-plugin-cc-state-and-codex-config) Discover how codex-plugin-cc keeps its state separate from Codex configuration. Learn how it reads settings via API without modifying them for seamless integration. - Tags: deep-dive - Published: 2026-07-07 ### [App Server Protocol Used by Codex-Plugin-CC's Broker: JSON-RPC over IPC](/openai/codex-plugin-cc/what-is-codex-plugin-cc-app-server-protocol) Discover the app server protocol for openai codex-plugin-cc. Learn how its broker uses JSON-RPC over IPC with Unix domain sockets and named pipes for seamless communication. - Tags: internals - Published: 2026-07-07 ### [How the Rescue Subagent Functions in codex-plugin-cc: Complete Technical Guide](/openai/codex-plugin-cc/how-does-codex-plugin-cc-rescue-subagent-work) Explore how the codex-plugin-cc rescue subagent functions. Learn how it translates commands into a Bash invocation for the Codex companion script, returning raw stdout. - Tags: deep-dive - Published: 2026-07-07 ### [Configuring codex-plugin-cc to Use Custom Codex Endpoints or Base URLs](/openai/codex-plugin-cc/can-codex-plugin-cc-use-custom-codex-endpoints) Learn how to configure codex-plugin-cc with custom Codex endpoints or base URLs using the openai_base_url setting in config.toml. Integrate your services seamlessly. - Tags: how-to-guide - Published: 2026-07-07 ### [How Codex-Plugin-CC Detects and Manages Codex Authentication Problems](/openai/codex-plugin-cc/how-does-codex-plugin-cc-handle-codex-authentication-issues) Learn how codex-plugin-cc detects and manages authentication problems by analyzing provider configurations and validating runtime tokens for the Codex API. - Tags: how-to-guide - Published: 2026-07-07 ### [Error Handling Strategy for Codex Reviews in the OpenAI Plugin](/openai/codex-plugin-cc/what-is-codex-plugin-cc-error-handling-for-codex-reviews) Discover the error handling strategy for Codex reviews in the OpenAI plugin. Learn how failures are converted into actionable user guidance not raw exceptions. - Tags: architecture - Published: 2026-07-07 ### [Codex-Plugin-CC State Persistence: Where and How Plugin Data is Stored](/openai/codex-plugin-cc/where-and-how-is-codex-plugin-cc-state-persisted) Discover where and how codex-plugin-cc stores plugin data. Learn about state.json persistence and custom data locations via CLAUDE_PLUGIN_DATA. - Tags: internals - Published: 2026-07-07 ### [How Codex-Plugin-CC Handles Process Termination Across Operating Systems](/openai/codex-plugin-cc/how-codex-plugin-cc-handles-process-termination-on-different-platforms) Discover how Codex-Plugin-CC ensures reliable process termination on Windows and Unix-like systems using platform-specific strategies and graceful fallbacks to prevent resource leaks. - Tags: internals - Published: 2026-07-07 ### [How Session Transfer Between Claude Code and Codex Works: A Technical Deep Dive](/openai/codex-plugin-cc/what-is-codex-plugin-cc-session-transfer-mechanism) Explore the technical deep dive into session transfer between Claude Code and Codex. Learn how the codex transfer command imports sessions and returns a resumable thread ID. - Tags: deep-dive - Published: 2026-07-07 ### [How Claude Code Broker Communicates with Codex: JSON-RPC Architecture Explained](/openai/codex-plugin-cc/how-does-codex-plugin-cc-broker-communication-work) Discover how Claude Code Broker communicates with Codex using JSON-RPC over sockets. Learn about this architecture for efficient inter-process communication. - Tags: internals - Published: 2026-07-07 ### [How the Codex Plugin Interacts with the Codex App Server: JSON-RPC Architecture and Transport Layer](/openai/codex-plugin-cc/how-does-the-plugin-interact-with-the-codex-app-server) Understand how the Codex plugin communicates with its app server using JSON-RPC. Explore STDIN/STDOUT pipes and Unix domain sockets for thread management and notifications. - Tags: architecture - Published: 2026-07-05 ### [Codex Session Transfer Limitations: 5 Critical Constraints of the /codex:transfer Command](/openai/codex-plugin-cc/what-are-the-limitations-of-the-session-transfer-feature-in-codex) Discover the 5 critical session transfer limitations of the Codex /codex:transfer command. Learn about transcript storage, CLI requirements, and immutable thread constraints. - Tags: deep-dive - Published: 2026-07-05 ### [How to Configure the Codex Model and Reasoning Effort for the Codex Plugin](/openai/codex-plugin-cc/how-do-i-configure-the-plugin-to-use-a-specific-codex-model-or-reasoning-effort) Learn how to configure the Codex model and reasoning effort for the openai codex plugin using config files or command flags. Optimize your plugin's performance today. - Tags: how-to-guide - Published: 2026-07-05 ### [What Happens to In-Progress Tasks When Claude Code Is Restarted](/openai/codex-plugin-cc/what-happens-to-in-progress-tasks-when-claude-code-is-restarted) Learn what happens to in-progress tasks when Claude Code restarts. Discover how the session-lifecycle hook automatically terminates and removes tasks from persistent state. - Tags: internals - Published: 2026-07-05 ### [How the Codex Plugin Manages Concurrent Codex Tasks: File‑System Isolation and Async Job Tracking](/openai/codex-plugin-cc/how-does-the-plugin-manage-concurrent-codex-tasks) Discover how the Codex plugin manages concurrent tasks with file system isolation and async job tracking for safe parallel execution. Learn about its concurrency model. - Tags: internals - Published: 2026-07-05 ### [Security Considerations When Using the Codex Plugin with Sensitive Code](/openai/codex-plugin-cc/what-are-the-security-considerations-when-using-the-codex-plugin-with-sensitive-code) Learn about security considerations when using the Codex plugin with sensitive code. Understand data transmission, OpenAI policies, and credential exposure risks. - Tags: best-practices - Published: 2026-07-05 ### [How to Debug Codex Plugin Integration Issues: A Complete Troubleshooting Guide](/openai/codex-plugin-cc/how-can-i-debug-issues-with-the-codex-plugin-integration) Troubleshoot Codex plugin integration problems. Learn to debug binary checks authentication turn capture and broker configurations effectively. Get your integration working now. - Tags: how-to-guide - Published: 2026-07-05 ### [Review Gate Implications for Claude Code: Blocking Behavior and Configuration](/openai/codex-plugin-cc/what-are-the-implications-of-the-review-gate-on-the-claude-code-workflow) Understand review gate implications for Claude Code. Discover how this checkpoint blocks sessions, creates review loops, and impacts API credits and latency. Learn configuration options to manage workflow effectively. - Tags: how-to-guide - Published: 2026-07-05 ### [How the OpenAI Codex Plugin Provides Support for Different Operating Systems](/openai/codex-plugin-cc/how-does-the-plugin-provide-support-for-different-operating-systems-like-windows-and-unix) Discover how the OpenAI Codex plugin supports Windows and Unix via Node.js runtime detection and conditional commands, eliminating platform-specific binaries. - Tags: internals - Published: 2026-07-05 ### [Error Handling Patterns for Failing Codex Commands in openai/codex-plugin-cc](/openai/codex-plugin-cc/what-are-the-error-handling-patterns-for-failing-codex-commands) Learn robust error handling patterns for failing Codex commands in openai/codex-plugin-cc. Explore validation, try/catch, sanitization, and reporting for reliable command execution. - Tags: best-practices - Published: 2026-07-05 ### [How Codex Job Results Are Stored and Retrieved in openai/codex-plugin-cc](/openai/codex-plugin-cc/how-are-codex-job-results-stored-and-retrieved) Learn how the openai/codex-plugin-cc stores Codex job results as JSON files, indexed by state.json, and retrieves them using a two-step lookup for efficient access. - Tags: internals - Published: 2026-07-05 ### [What Happens When the Codex Binary Is Not Found or Fails to Start](/openai/codex-plugin-cc/what-happens-if-the-codex-binary-is-not-found-or-fails-to-start) Learn what happens when the Codex binary is not found or fails to start. The plugin aborts with installation instructions for a seamless recovery. - Tags: troubleshooting - Published: 2026-07-05 ### [How to Execute Long-Running Codex Tasks in the Background with openai/codex-plugin-cc](/openai/codex-plugin-cc/what-are-the-best-practices-for-executing-long-running-codex-tasks-in-the-background) Execute long-running Codex tasks in the background using the --background flag. Monitor progress with codex status and retrieve results efficiently. - Tags: best-practices - Published: 2026-07-05 ### [How Adversarial Review Differs From Standard Review in Codex](/openai/codex-plugin-cc/how-does-adversarial-review-differ-from-standard-review-in-codex) Discover how adversarial review in Codex uses skeptic prompts to find hidden failure modes, unlike standard review which focuses on conventional bug and style checks. Optimize your code quality. - Tags: deep-dive - Published: 2026-07-05 ### [Codex config.toml Configuration Options: Complete Guide for the OpenAI Plugin](/openai/codex-plugin-cc/what-are-the-configuration-options-within-the-codex-config-toml-file) Explore Codex config.toml configuration options for model selection, API endpoints, and plugin behavior. Master your OpenAI plugin setup with our complete guide. - Tags: api-reference - Published: 2026-07-05 ### [How the Codex Plugin Manages Authentication and Reuses Existing Credentials](/openai/codex-plugin-cc/how-does-the-plugin-manage-authentication-and-utilize-existing-codex-credentials) Discover how the Codex plugin effortlessly manages authentication by reusing your existing Codex CLI credentials. Learn more about its seamless integration. - Tags: internals - Published: 2026-07-05 ### [How Session Transfer Works Between Claude Code and Codex](/openai/codex-plugin-cc/how-does-session-transfer-operate-between-claude-code-and-codex) Discover how session transfer works between Claude Code and Codex. Learn to migrate session transcripts to new Codex threads using the codex transfer command to resume your work. - Tags: internals - Published: 2026-07-05 ### [What Happens When a Codex Task Is Canceled During Execution](/openai/codex-plugin-cc/what-occurs-when-a-codex-task-is-canceled-during-execution) Discover what happens when a Codex task is canceled. Learn how execution is interrupted, worker processes terminated, and job states updated for smooth cancellations. - Tags: internals - Published: 2026-07-05 ### [How the Review Gate Hook Blocks Claude Responses Using Codex Feedback in openai/codex-plugin-cc](/openai/codex-plugin-cc/how-is-the-review-gate-hook-implemented-to-block-claude-responses-based-on-codex-feedback) Discover how the review gate hook in openai/codex-plugin-cc blocks Claude responses. Learn how Codex feedback triggers a blocking mechanism via JSON decision to STDOUT. - Tags: internals - Published: 2026-07-05 ### [Process Lifecycle for Background Codex Jobs in the OpenAI Codex Plugin](/openai/codex-plugin-cc/what-is-the-process-lifecycle-for-background-codex-jobs) Understand the background Codex jobs lifecycle: enqueue, start, monitor, complete, retrieve, and cancel. Learn how state is managed in state.json and Node.js workers. - Tags: internals - Published: 2026-07-05 ### [How Broker Endpoint Communication Functions Between Claude Code and Codex Across Platforms](/openai/codex-plugin-cc/how-does-broker-endpoint-communication-function-between-claude-code-and-codex-on-different-platforms) Discover how broker endpoint communication works between Claude Code and Codex on Windows and POSIX platforms. Learn about platform-specific transports and unified JSON messaging. - Tags: how-to-guide - Published: 2026-07-05 ### [How Job Progress Tracking and Logging Works in OpenAI Codex Companion](/openai/codex-plugin-cc/how-is-job-progress-tracking-and-logging-implemented) Learn how OpenAI Codex Companion tracks and logs job progress using a file-based JSON store, global index, and real-time metadata updates for efficient workflow management. - Tags: internals - Published: 2026-07-04 ### [How the Codex Plugin Detects Codex Availability in OpenAI's Codex Plugin CC](/openai/codex-plugin-cc/how-does-the-plugin-detect-codex-availability) Learn how the Codex plugin detects Codex availability. It checks for the binary and confirms runtime support for detailed diagnostics. - Tags: internals - Published: 2026-07-04 ### [How Process Tree Termination Works for Job Cancellation in the Codex Plugin CC](/openai/codex-plugin-cc/how-does-process-tree-termination-work-for-job-cancellation) Learn how the Codex Plugin CC cancels jobs using process tree termination on Windows and POSIX. Understand the app-server interruption and platform-specific kill commands. - Tags: internals - Published: 2026-07-04 ### [Can the Codex CC Plugin Be Run Without Broker Mode? A Complete Guide to Direct Mode](/openai/codex-plugin-cc/can-the-plugin-be-run-without-broker-mode) Discover how to run the Codex CC plugin without broker mode. Learn to leverage direct mode for efficient, isolated Codex app-server processes with this comprehensive guide. - Tags: how-to-guide - Published: 2026-07-04 ### [How Thread Persistence and Naming Work in OpenAI Codex Companion](/openai/codex-plugin-cc/how-does-thread-persistence-and-naming-work) Understand thread persistence and naming in OpenAI Codex Companion. Learn how it saves your IDE sessions to JSON files for seamless continuation. - Tags: internals - Published: 2026-07-04 ### [How JSON Output Mode Is Implemented in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-is-json-output-mode-implemented-in-the-plugin) Explore the three-layer architecture of the OpenAI Codex plugin and how the --json flag enables machine-readable output via JSON.stringify serialization for sub-commands. - Tags: internals - Published: 2026-07-04 ### [How Sandbox Permissions Work in the OpenAI Codex Plugin: Read-Only vs Workspace-Write](/openai/codex-plugin-cc/how-do-sandbox-permissions-read-only-vs-workspace-write-work) Understand OpenAI Codex plugin sandbox permissions: learn how read-only and workspace-write modes control file access and prevent network exfiltration. - Tags: deep-dive - Published: 2026-07-04 ### [How the Stop Hook Integrates with Claude Code in OpenAI’s Codex Plugin](/openai/codex-plugin-cc/how-does-the-stop-hook-integrate-with-claude-code) Discover how the stop hook integrates with Claude Code in OpenAI's Codex Plugin. Learn how it automatically adds a review task to vet generated artifacts before automation proceeds. - Tags: how-to-guide - Published: 2026-07-04 ### [How Codex Authentication Is Handled by the Plugin: A Complete Technical Guide](/openai/codex-plugin-cc/how-is-codex-authentication-handled-by-the-plugin) Learn how the Codex plugin handles authentication by reusing your local Codex CLI and app server login status and provider config through RPC calls. Get the complete technical guide for openai/codex-plugin-cc. - Tags: deep-dive - Published: 2026-07-04 ### [How Job Status Tracking and Polling Works in the OpenAI Codex Plugin](/openai/codex-plugin-cc/how-job-status-tracking-and-polling-works) Discover how OpenAI Codex plugin utilizes job status tracking and polling with JSON state files for synchronous and asynchronous job monitoring. Learn more. - Tags: internals - Published: 2026-07-04 ### [How Codex Plugin CC Handles Review Target Resolution: Branch vs Working Tree](/openai/codex-plugin-cc/how-is-review-target-resolution-handled-branch-vs-working-tree) Understand how Codex Plugin CC handles review target resolution between branches and working trees. Learn about automatic selection based on repository state and flags. - Tags: internals - Published: 2026-07-04 ### [How to Resume Previous Codex Tasks in Claude Code: Complete Guide to Task Resumption](/openai/codex-plugin-cc/how-to-resume-previous-codex-tasks) Learn how to resume previous Codex tasks in Claude Code using the resume last and resume flags. Effortlessly continue your workflows with persistent thread IDs and job state files. - Tags: how-to-guide - Published: 2026-07-04 ### [How Workspace Root Resolution Works in Codex-Companion: Git-Aware Detection and Fallback Logic](/openai/codex-plugin-cc/how-does-workspace-root-resolution-work) Discover how Codex-Companion finds your project root using Git-aware detection and fallback logic. Learn the secrets behind accurate workspace resolution. - Tags: internals - Published: 2026-07-04 ### [How to Debug Codex Plugin Issues and Common Errors: A Complete Guide](/openai/codex-plugin-cc/how-to-debug-codex-plugin-issues-and-common-errors) Debug Codex plugin issues and common errors by inspecting on-disk job logs and state.json. Learn how to check error codes and verify your Codex CLI installation. - Tags: how-to-guide - Published: 2026-07-04 ### [How the Codex Plugin CC Broker Endpoint and Lifecycle Work: A Complete Guide](/openai/codex-plugin-cc/how-does-the-broker-endpoint-and-lifecycle-work) Understand the Codex Plugin CC broker lifecycle. Learn how it spawns, validates, and cleans up app-server brokers using platform-specific endpoints for seamless operation. - Tags: internals - Published: 2026-07-04 ### [Adversarial vs Regular Review in Codex Plugin CC: Key Differences Explained](/openai/codex-plugin-cc/what-is-the-difference-between-adversarial-and-regular-review) Understand the crucial differences between adversarial and regular review in OpenAI Codex Plugin CC. Learn how each method strengthens your code by uncovering hidden issues and ensuring quality. - Tags: deep-dive - Published: 2026-07-04 ### [Job State Management and Persistence in the OpenAI Codex Plugin: A Technical Deep Dive](/openai/codex-plugin-cc/how-job-state-management-and-persistence-works-in-the-plugin) Explore job state management and persistence in the OpenAI Codex plugin. Understand its file-based layer, JSON metadata, append-only logs, and centralized state.json index. - Tags: technical-deep-dive - Published: 2026-07-04 ### [Codex App Server JSON-RPC Protocol Implementation: Architecture and Usage](/openai/codex-plugin-cc/what-is-the-app-server-json-rpc-protocol-implementation) Explore the Codex app server JSON-RPC protocol implementation's architecture and usage. Discover its JSONL stream, TypeScript definitions, and dual transport adapters for efficient communication. - Tags: architecture - Published: 2026-07-04 ### [How to Cancel Running Codex Jobs: CLI Commands and Programmatic API](/openai/codex-plugin-cc/how-to-cancel-running-codex-jobs) Cancel running Codex jobs easily with CLI commands like codex cancel or programmatically using the JavaScript API. Learn how to stop and clean up your Codex tasks efficiently. - Tags: how-to-guide - Published: 2026-07-04 ### [How to Transfer Sessions from Claude Code to Codex: Complete Technical Guide](/openai/codex-plugin-cc/how-to-transfer-sessions-from-claude-code-to-codex) Easily transfer sessions from Claude Code to Codex using the openai codex plugin cc repository. Learn how to convert JSONL transcripts to resumable Codex threads with our technical guide. - Tags: how-to-guide - Published: 2026-07-04 ### [How Background Job Execution Is Implemented in the Codex Plugin](/openai/codex-plugin-cc/how-background-job-execution-is-implemented-in-the-codex-plugin) Learn how the Codex plugin handles background job execution by persisting job data, spawning detached Node.js processes, and using a dedicated worker subcommand for async task completion. - Tags: internals - Published: 2026-07-04 ### [How the Codex Review Gate Works: Enable, Disable, and Configure Stop-Time Safety Checks](/openai/codex-plugin-cc/how-the-review-gate-works-and-how-to-enable-disable-it) Learn how the Codex review gate works to enforce stop-time safety checks. Enable or disable this essential feature easily with simple commands to control your Codex session. - Tags: how-to-guide - Published: 2026-07-04 ### [How to Configure the Codex Model and Reasoning Effort for the openai/codex-plugin-cc Plugin](/openai/codex-plugin-cc/how-to-configure-codex-model-and-reasoning-effort-for-the-plugin) Learn to configure the Codex model and reasoning effort for the openai/codex-plugin-cc plugin using config files or command flags. Optimize your plugin's performance today. - Tags: how-to-guide - Published: 2026-07-04 ### [How to Troubleshoot Common Issues with the Codex Plugin](/openai/codex-plugin-cc/how-to-troubleshoot-common-issues-codex-plugin) Troubleshoot common Codex plugin issues. Fix missing binaries, authentication problems, and misconfigured broker modes to get your plugin running smoothly. Learn solutions now. - Tags: how-to-guide - Published: 2026-07-03 ### [What Data Does the Codex Plugin Collect? A Complete Technical Breakdown](/openai/codex-plugin-cc/what-data-codex-plugin-collect) Discover what data the Codex plugin collects. Get a full technical breakdown of repository context including Git status diffs and branch metadata sent for LLM analysis. - Tags: deep-dive - Published: 2026-07-03 ### [Performance Considerations for the Codex Plugin: Optimization Guide for Claude Code](/openai/codex-plugin-cc/are-there-performance-considerations-codex-plugin) Optimize your Claude Code experience with this Codex plugin performance guide. Learn to manage background processes, network latency, and disk I/O for peak efficiency. - Tags: performance - Published: 2026-07-03 ### [How to Uninstall the Codex Plugin from VS Code: Step-by-Step Guide](/openai/codex-plugin-cc/how-to-uninstall-codex-plugin-vs-code) Easily uninstall the Codex plugin from VS Code with our step-by-step guide. Remove the OpenAI extension quickly and efficiently. Follow our simple instructions to clean up your VS Code. - Tags: how-to-guide - Published: 2026-07-03 ### [What Is the Purpose of Hook Files in the Codex Plugin?](/openai/codex-plugin-cc/what-purpose-hook-files-codex-plugin) Discover how Codex plugin hook files automate Node.js scripts for session start, end, and stop without altering core code. Streamline initialization and cleanup. - Tags: internals - Published: 2026-07-03 ### [How to Customize the Behavior of the Codex Plugin: Configuration and Extension Points](/openai/codex-plugin-cc/can-i-customize-codex-plugin-behavior) Easily customize Codex plugin behavior using JSON state files, TOML config, and custom skills. Modify AI models and more for tailored functionality. - Tags: how-to-guide - Published: 2026-07-03 ### [How the Codex Plugin Interacts with the OpenAI API: A Technical Deep Dive](/openai/codex-plugin-cc/how-codex-plugin-interacts-openai-api) Learn how the Codex plugin interacts with the OpenAI API through a technical deep dive. Discover its indirect communication method via the local codex binary and RPC calls. - Tags: deep-dive - Published: 2026-07-03 ### [Limitations of the Codex Plugin: Constraints and boundaries in openai/codex-plugin-cc](/openai/codex-plugin-cc/what-are-limitations-codex-plugin) Explore the limitations of the openai/codex-plugin-cc. Understand constraints like the 24KB file size limit, token usage, Node 18.18+ requirement, and background job termination. - Tags: limitations - Published: 2026-07-03 ### [How to Get Support for the Codex Plugin: Official Channels and Troubleshooting](/openai/codex-plugin-cc/how-to-get-support-codex-plugin) Get support for the Codex plugin via GitHub Issues, OpenAI forums, Discord, or documentation. Ensure Codex is installed, authenticated, and running Node.js 18.18+. - Tags: getting-started - Published: 2026-07-03 ### [How to Report a Bug in the Codex Plugin: A Complete Guide](/openai/codex-plugin-cc/how-to-report-bug-codex-plugin) Learn how to report a bug in the Codex plugin. Follow our guide to generate a diagnostic report and open a GitHub issue for quick resolution on openai/codex-plugin-cc. - Tags: how-to-guide - Published: 2026-07-03 ### [OpenAI Codex Plugin License: Apache 2.0 Terms and Usage Guide](/openai/codex-plugin-cc/what-license-openai-codex-plugin) Understand the OpenAI Codex plugin license. Discover the terms of Apache 2.0, enabling commercial use, modification, and distribution with attribution from openai/codex-plugin-cc. - Tags: license-guide - Published: 2026-07-03 ### [How to Contribute to the Codex Plugin: A Complete Guide for Developers](/openai/codex-plugin-cc/can-i-contribute-codex-plugin-development) Contribute to the Codex plugin by forking the repo and submitting pull requests. Follow the Node.js build pipeline in openai/codex-plugin-cc for a seamless developer experience. - Tags: how-to-guide - Published: 2026-07-03 ### [How Hooks Are Implemented in the Codex Plugin: A Technical Deep Dive](/openai/codex-plugin-cc/how-hooks-implemented-codex-plugin) Discover how Codex plugin implements hooks using declarative JSON and Node.js scripts for automated session management and review gates. Understand lifecycle automation. - Tags: deep-dive - Published: 2026-07-03 ### [Where Are the Codex Plugin Command Files Located? (+ Full File Structure)](/openai/codex-plugin-cc/where-command-files-located-codex-plugin-repo) Locate Codex plugin command files in the plugins codex commands directory. Discover their Markdown structure with YAML front-matter for metadata and execution. - Tags: how-to-guide - Published: 2026-07-03 ### [How to Use Custom Prompts with the Codex Plugin: A Complete Guide](/openai/codex-plugin-cc/how-to-use-custom-prompts-codex-plugin) Master custom prompts with the OpenAI Codex plugin. Learn the templating system and `{{PLACEHOLDER}}` variables for powerful code generation. - Tags: how-to-guide - Published: 2026-07-03 ### [What Programming Languages Are Supported by the Codex Plugin?](/openai/codex-plugin-cc/what-programming-languages-support-codex-plugin) Discover which programming languages the Codex plugin supports. Learn how this powerful tool leverages the Codex CLI for over a dozen major languages like JavaScript, Python, Rust, and Go. - Tags: faq - Published: 2026-07-03 ### [How to Refactor Code with the Codex Plugin: A Complete Guide](/openai/codex-plugin-cc/how-to-refactor-code-codex-plugin) Learn to refactor code using the Codex plugin. Follow this guide for rescue, status, result, and review commands within Claude Code to streamline your refactoring process. - Tags: how-to-guide - Published: 2026-07-03 ### [How to Explain Existing Code with the OpenAI Codex Plugin](/openai/codex-plugin-cc/can-codex-plugin-explain-code) Learn how to use the OpenAI Codex plugin to explain existing code with review commands and custom skills. Understand your codebase faster. - Tags: how-to-guide - Published: 2026-07-03 ### [How to Generate Code Snippets Using the Codex Plugin for Claude Code](/openai/codex-plugin-cc/how-to-generate-code-snippets-codex-plugin) Learn to generate code snippets with the Codex plugin for Claude Code. Use slash commands to send requests to Codex CLI and get instant code results without post-processing. - Tags: how-to-guide - Published: 2026-07-03 ### [What Functionalities Does the Codex Plugin Offer? Core Commands and Architecture Explained](/openai/codex-plugin-cc/what-functionalities-codex-plugin-offers) Explore the Codex plugin functionalities and core commands. Discover how it streamlines code reviews, task delegation, and more with its architecture. - Tags: deep-dive - Published: 2026-07-03 ### [How to Configure OpenAI API Key for the Codex Plugin](/openai/codex-plugin-cc/how-to-configure-openai-api-key-codex-plugin) Learn how to configure your OpenAI API key for the Codex plugin. Easily set up authentication via environment variables or codex login for seamless integration. - Tags: how-to-guide - Published: 2026-07-03 ### [Prerequisites for Using the Codex Plugin: Complete Setup Guide](/openai/codex-plugin-cc/what-are-prerequisites-codex-plugin) Learn the essential prerequisites for using the Codex plugin including OpenAI credentials Nodejs and Codex CLI installation for a seamless setup. - Tags: how-to-guide - Published: 2026-07-03