iainmcl/worktree-testing
claude/skills/worktree-testing/SKILL.md
Guide for testing changes locally when working in a Claude Code worktree. Use when running dev servers, tests, or verifying changes in a worktree.
development
Updated May 1, 2026
$ install --global
skillsauthnpx skillsauth add iainmcl/dotfiles worktree-testingInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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TrivyContainer and dependency vulnerability scanner
95%
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SemgrepStatic code analysis for vulnerabilities
95%
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mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
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Socket.devSupply chain security analysis
50%
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VirusTotalMulti-engine malware detection
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CrowdStrikeAdvanced threat intelligence
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OWASP Dep-Check
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Last scanned: May 1, 2026, 10:39 AM122.7s1 file scanned
SKILL.md
- name:
- worktree-testing
- description:
- Guide for testing changes locally when working in a Claude Code worktree. Use when running dev servers, tests, or verifying changes in a worktree.
Testing in Claude Code Worktrees
Worktrees (claude -w <name>) create an isolated copy of the repo at
.claude/worktrees/<name>/ on a new branch worktree-<name>.
Setup
Dependencies are not pre-installed in a new worktree. Install them before running anything:
# Frontend
cd frontend && npm install
# Backend
cd backend && pip install -e ".[dev]"
Running dev servers
Run just run or individual dev commands as normal — the worktree is a full
working copy.
Port conflicts: If the main repo is already running dev servers, the worktree will fail to bind the same ports. Stop the main instance first or configure different ports.
Testing from a separate terminal
Open another terminal and cd into the worktree directory to run servers,
curl endpoints, or open the browser while Claude works in the session:
cd .claude/worktrees/<name>/
just run
Cleanup
When exiting the Claude session:
- No changes made: worktree and branch are deleted automatically
- Changes made: Claude prompts whether to keep or remove the worktree
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