parallel-test-fixing

Q: How do I install parallel-test-fixing?

Run npx skills add https://github.com/spencerpauly/awesome-cursor-skills --skill parallel-test-fixing in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/parallel-test-fixing/ (personal) or .claude/skills/parallel-test-fixing/ (project).

by spencerpaulyTesting & QA

When multiple tests fail, assign each failing test file to a separate subagent that fixes it independently in parallel.

Installs: 416
Last 24h: —
Trending rank: —
Security: Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/spencerpauly/awesome-cursor-skills --skill parallel-test-fixing

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads parallel-test-fixing automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Parallel Test Fixing

Speed up fixing a broken test suite by distributing failing tests across parallel subagents.

Workflow

1. Run the Full Test Suite

npm test -- --no-coverage 2>&1 || true

Capture the output and extract all failing test files.

2. Group Failures

Parse the test output for failing files:

Jest: FAIL src/components/Button.test.tsx
Vitest: FAIL src/utils/format.test.ts
Pytest: FAILED tests/test_api.py::test_create_user

Group by file — each file becomes one task.

3. Launch Parallel Subagents

For each failing test file, launch a generalPurpose subagent:

Task: Fix the failing tests in <file>

The test file is: <path>
The test command is: <command to run just this file>
The error output was:
<paste the relevant failure output>

Steps:
1. Read the test file and the source file it tests
2. Understand why each test is failing
3. Fix the source code (preferred) or update the test if the test is wrong
4. Run the single test file to confirm it passes
5. Report what you changed and why

Launch all subagents simultaneously — they work in parallel since each touches different files.

4. Collect Results

As each subagent completes, collect:

Which tests were fixed
What files were changed
Whether the fix might conflict with another subagent's changes

5. Verify

Run the full test suite one more time to confirm everything passes:

npm test

If there are new failures (from conflicting fixes), resolve them sequentially.

Tips

If two failing tests share the same source file, assign them to the same subagent to avoid edit conflicts
Set a timeout — if a subagent is stuck for 5+ minutes, check its progress
For large test suites (50+ failures), batch into groups of 5-10 per subagent rather than one-per-file
Use best-of-n-runner subagents if you want isolated worktrees for each fix attempt

FAQ

What does the parallel-test-fixing skill do?

When multiple tests fail, assign each failing test file to a separate subagent that fixes it independently in parallel.

How do I install parallel-test-fixing?

Run npx skills add https://github.com/spencerpauly/awesome-cursor-skills --skill parallel-test-fixing in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/parallel-test-fixing/ (personal) or .claude/skills/parallel-test-fixing/ (project).

Which AI agents can use parallel-test-fixing?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is parallel-test-fixing safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains parallel-test-fixing?

It is published by spencerpauly in spencerpauly/awesome-cursor-skills. It has 416 recorded installs.