Worktree isolation

Skill 0SxD/agent-plugin-skills-v01/skills/worktree-isolation

Create and manage git worktrees for parallel coding agent isolation. Invoke when two independent coding tasks need to run simultaneously (max 2).From its SKILL.md

Install

npx -y skills add 0SxD/agent-plugin-skills-v01 --skill worktree-isolation

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SKILL.md

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Worktree Isolation Pattern

When to Use

Two independent coding tasks can run in parallel (no shared files)
Each task is self-contained (different feature branches)
Max 2 worktrees active at any time (= max 2 concurrent agents)

Step 1 — Create Worktree

Use the EnterWorktree tool or bash equivalent:

git worktree add _worktrees/{task-id} -b feature/{task-id}-{short-description}

Each worktree gets its own:

Working directory: _worktrees/{task-id}/
Feature branch: feature/{task-id}-{short-description}
Complete copy of the codebase (shares .git objects, not files)

Step 2 — Dispatch Agent to Worktree

In Agent tool call, direct the agent to work within the worktree path:

Agent reads/writes ONLY within _worktrees/{task-id}/
Agent has NO access to main working tree files
Agent has NO knowledge of what the other worktree agent is doing

Step 3 — Stage 1 Audit (before merge)

Each worktree's output goes through the full 5-gate audit pipeline:

Semgrep (plugin)
CodeRabbit (plugin)
Code-review + pr-review-toolkit (plugins)
Security-guidance (plugin)
Clone repo comparison (_repos/)

ALL gates must PASS before merge is allowed.

Step 4 — Merge Back

After Stage 1 PASS + Austin approval:

# Return to main working tree
git checkout main

# Merge the feature branch (no fast-forward for audit trail)
git merge feature/{task-id}-{short-description} --no-ff

# Clean up
git worktree remove _worktrees/{task-id}
git branch -d feature/{task-id}-{short-description}

Step 5 — Stage 2 (GitHub PR Airlock)

After merge to local main:

Push branch → open PR (Austin approval required)
GitHub Actions: remote semgrep + CodeRabbit
Austin reviews → merges

Rules

NEVER share files between worktrees
NEVER run more than 2 worktrees simultaneously
ALWAYS delete worktree after merge (no stale worktrees)
ALWAYS run full audit before merge
Worktree directory: _worktrees/ (gitignored)

Multi-Agent Worktree Usage

All coding agents use worktrees — not just Claude sub-agents:

Agent	Worktree?	Branch pattern	Notes
Claude (Opus)	NO — stays on main	n/a	Orchestrator. Never leaves main working tree.
Claude (Sonnet)	YES	feature/{task-id}-claude-{desc}	Dispatched by Opus
Gemini (AntiGravity)	YES	feature/{task-id}-gemini-{desc}	Works in IDE on its own worktree
Codex	YES	feature/{task-id}-codex-{desc}	Works in IDE on its own worktree

Opus NEVER works in a worktree — it stays on main to orchestrate and review
Each coding agent gets its own worktree and feature branch
No two agents share a worktree
All worktree output goes through Claude's 5-gate audit pipeline before merge

Emergency Cleanup

git worktree list              # see all active worktrees
git worktree remove --force _worktrees/{task-id}  # force remove
git worktree prune             # clean up stale entries

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.