swe-agent

🤖 AI-powered software engineering multi-agent system with researcher and developer agents that automate code implementation through intelligent planning and execution. Built with LangGraph multi-agent workflows

22 articles 616 View on GitHub ↗
22 articles
Understanding is_valid_research_step in the SWE-Agent Architect State

Learn the purpose of is_valid_research_step in SWE-Agent's architect state. This flag controls research execution and prevents redundant exploration. Understand its role in optimizing agent workflows.

internals
Mar 5, 2026
How SWE-Agent Handles Errors During the Implementation Phase

Discover how SWE-Agent manages implementation errors. It gracefully handles missing files and uses try/except blocks for robust file operations, preventing workflow crashes.

how-to-guide
Mar 5, 2026
How Developer Prompts Handle New File Creation vs Existing File Modifications in SWE-Agent

Discover how SWE-Agent developer prompts differentiate between creating new files and modifying existing ones using distinct templates for efficient code generation and modification.

deep-dive
Mar 5, 2026
Understanding the Write Tool for File Operations in SWE-Agent

Explore SWE-Agent's write tool for safe file operations. Learn to create, overwrite, and inspect files using create_file, write_to_file, and get_files_structure utilities.

how-to-guide
Mar 5, 2026
How Developer Prompts Generate Code Changes in SWE-Agent: The Complete Guide to create_diff_prompt and implement_diff

Learn how SWE-Agent's developer prompts create_diff_prompt and implement_diff generate accurate code changes using a two step LLM extraction and application workflow.

how-to-guide
Mar 5, 2026
How SWE-Agent Architect Prompts Work: From Research to Implementation Plans

Discover how SWE-Agent architect prompts transform LLM research into structured JSON implementation plans. Learn about conduct_research_plan_prompt and extract_implementation_plan.

internals
Mar 5, 2026
How the Codemap Tool Analyzes Code Structure and Dependencies in SWE-Agent

Discover how the Codemap tool uses Tree-sitter for static analysis to map code structure and dependencies. SWE-Agent navigates codebases efficiently without execution.

how-to-guide
Mar 5, 2026
Understanding implementation_research_scratchpad in SWE-Agent State Management

Discover the purpose of implementation_research_scratchpad in SWE-Agent state management. Learn how this message-history buffer preserves dialogue for context-aware planning and deterministic serialization.

deep-dive
Mar 5, 2026
How the Architect Agent Uses `research_next_step` for Hypothesis-Driven Exploration in SWE-Agent

Discover how the Architect Agent in SWE-Agent utilizes research_next_step for hypothesis-driven exploration, validating and executing research to gather implementation knowledge.

deep-dive
Mar 5, 2026
Why Is recursion_limit Set to 200 in the LangGraph Configuration?

Discover why LangGraph's recursion_limit is 200. Enable deeper multi-step reasoning for SWE-Agent's research and coding loops safely preventing infinite execution.

internals
Mar 5, 2026
How the Developer Agent Iterates Through Tasks and Generates Diffs Sequentially in SWE-Agent

Learn how the SWE-Agent Developer agent iterates tasks sequentially. Discover its state-graph architecture, contextual research tools, and unified diff generation for code changes.

deep-dive
Mar 5, 2026
Understanding add_messages in LangGraph State Management: A Deep Dive into SWE-Agent

Learn how add_messages in LangGraph state management automatically concatenates message lists instead of overwriting. Understand this key feature for SWE-Agent.

deep-dive
Mar 5, 2026

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