# How to Manage Hotfix Branches for Emergency Bug Fixes: The CCGS Workflow Explained

> Master hotfix branch management for emergency bug fixes with the CCGS workflow. Learn how to create isolated branches, get explicit consent, and automate validation for seamless merges.

- Repository: [Donchitos/Claude-Code-Game-Studios](https://github.com/Donchitos/Claude-Code-Game-Studios)
- Tags: best-practices
- Published: 2026-04-16

---

**The `/hotfix` skill in the Donchitos/Claude-Code-Game-Studios repository defines a time‑critical workflow that creates isolated `hotfix/<identifier>` branches from `main`, enforces explicit user consent for every file modification, and automatically validates fixes through the `/smoke-check` skill before allowing non‑fast‑forward merges back to the main branch.**

When critical defects hit production, development teams need a disciplined branch strategy that stabilizes the mainline while delivering fixes fast. According to the `CCGS Skill Testing Framework/skills/utility/hotfix.md` specification in the Donchitos/Claude-Code-Game-Studios repository, the `/hotfix` skill provides exactly that: a structured emergency protocol built on **isolation**, **explicit consent**, and **automated verification**. This article breaks down the complete technical implementation of how to manage hotfix branches for emergency bug fixes using this open‑source workflow.

## Core Principles of Hotfix Branch Management

The hotfix workflow rests on three architectural guarantees that prevent half‑finished work from reaching production:

- **Isolation** – Every fix lives on a dedicated `hotfix/<identifier>` branch created from `main` before any code changes occur, ensuring the main branch never sees partial work. [[hotfix skill spec]](https://github.com/Donchitos/Claude-Code-Game-Studios/blob/main/CCGS%20Skill%20Testing%20Framework/skills/utility/hotfix.md#l5)

- **Explicit Consent** – The skill prompts “May I write to `path/to/file`?” before applying any modification, ensuring zero unauthorized changes land in the codebase. [[hotfix skill spec]](https://github.com/Donchitos/Claude-Code-Game-Studios/blob/main/CCGS%20Skill%20Testing%20Framework/skills/utility/hotfix.md#l8)

- **Safety Net** – The `/smoke-check` skill runs automatically after fixes are applied; merges proceed only on **PASS** status, guaranteeing the fix does not introduce regressions. [[hotfix skill spec]](https://github.com/Donchitos/Claude-Code-Game-Studios/blob/main/CCGS%20Skill%20Testing%20Framework/skills/utility/hotfix.md#l5-L10)

## The Five‑Phase Emergency Bug Fix Workflow

Managing hotfix branches follows a strict sequential process defined in the hotfix skill specification, moving from branch creation through verification to final merge.

### Phase 1: Branch Creation and Isolation

Upon activation, the skill proposes a descriptive branch name and displays the exact Git command for user confirmation:

```bash
git checkout -b hotfix/boss-arena-crash

```

The user must explicitly approve before the branch is created, ensuring the `main` branch remains untouched during the emergency response. This isolation prevents unstable work from contaminating production code.

### Phase 2: Fix Drafting with User Confirmation

After identifying the bug and target files, the skill drafts the fix and requests permission for every file write. For example:

```text
May I write to src/gameplay/arena.gd?

```

Only after user approval does the skill write changes to `src/gameplay/arena.gd` on the hotfix branch. This explicit consent mechanism ensures complete visibility into every modification during high‑pressure debugging sessions.

### Phase 3: Automated Verification via Smoke Checks

Before any merge is considered, the skill automatically invokes the smoke check (via the `/smoke-check` skill) to validate the fix:

```bash
./run-smoke-check.sh

```

If the check returns **FAIL**, the workflow enters **HOTFIX BLOCKED** status, presenting options to revise, revert, or proceed with known regression. Only a **PASS** result unlocks the merge phase, acting as a hard gate against regressions.

### Phase 4: Non‑Fast‑Forward Merge to Main

Once verified, the skill presents the merge command for final user confirmation:

```bash
git checkout main
git merge --no-ff hotfix/boss-arena-crash

```

The `--no-ff` flag preserves branch history, creating a clear audit trail of the emergency fix in the repository’s commit graph. The user must explicitly confirm this command before execution.

### Phase 5: Post‑Fix Version Management

If the current HEAD is a tagged release (e.g., `v1.2.0`), the skill detects the tag and proposes a patch version bump:

```text
May I write to VERSION?

```

Upon approval, the file updates to `v1.2.1`, maintaining accurate release metadata before the workflow completes. [[hotfix skill spec]](https://github.com/Donchitos/Claude-Code-Game-Studios/blob/main/CCGS%20Skill%20Testing%20Framework/skills/utility/hotfix.md#l90-L104)

## Governance and Time‑Critical Safeguards

Because hotfixes are **time‑critical**, the workflow deliberately bypasses the Director gate used in standard development flows. As specified in lines 30‑34 of `CCGS Skill Testing Framework/skills/utility/hotfix.md`, no Director review is invoked during the emergency flow; optional manual reviews can occur later as follow‑up tasks. This trade‑off prioritizes speed while maintaining safety through the smoke‑check gate and explicit user consent prompts.

## Summary

- **Isolation first** – All emergency work happens on dedicated `hotfix/<identifier>` branches created from `main` before any edits.
- **Consent required** – Every file modification requires explicit user approval via “May I write to...” prompts.
- **Smoke‑check gated** – The `/smoke-check` skill must return **PASS** before merging; failures block the workflow with **HOTFIX BLOCKED** status.
- **History preserved** – Merges use `--no-ff` to maintain clear audit trails of emergency interventions.
- **Version aware** – Automatic patch bump suggestions when working from release tags (e.g., `v1.2.0` → `v1.2.1`).
- **Director bypass** – Time‑critical nature skips Director gates to expedite fixes, with optional reviews deferred to post‑deployment.

## Frequently Asked Questions

### What is the naming convention for hotfix branches?

According to the specification in `CCGS Skill Testing Framework/skills/utility/hotfix.md`, branches use the format `hotfix/<short-description>` (e.g., `hotfix/boss-arena-crash`). The skill proposes the name and shows the exact `git checkout -b` command for user confirmation before creation.

### How does the hotfix skill prevent accidental regressions?

The workflow integrates with the `/smoke-check` skill to run automated regression checks after applying fixes. If the smoke check returns **FAIL**, the workflow enters **HOTFIX BLOCKED** status and prevents automatic merging, requiring the user to actively choose between revision, reversion, or proceeding with explicit acknowledgment of the regression.

### Can I merge a hotfix if the smoke check fails?

Technically yes, but not automatically. When the smoke check fails, the skill presents three explicit options: revise the fix, revert the changes, or merge with known regression. The user must consciously select the merge‑with‑regression option; the workflow will not proceed automatically on a failed check.

### Does the hotfix workflow require Director approval?

No. As implemented in the Donchitos/Claude-Code-Game-Studios workflow, hotfixes skip the Director gate entirely because they are time‑critical. Lines 30‑34 of the hotfix skill specification explicitly state that any desired review should be performed later as a manual follow‑up after the emergency fix is deployed.