Agent skill

Parallel Test Fixing

by spencerpauly in spencerpauly/awesome-cursor-skills

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

CC0-1.0Auto-check passedTesting & QA

Install Parallel Test Fixing

skills CLI
$ npx skills add spencerpauly/awesome-cursor-skills --skill parallel-test-fixing -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install spencerpauly/awesome-cursor-skills parallel-test-fixing --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/spencerpauly/awesome-cursor-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/resources/parallel-test-fixing .claude/skills/parallel-test-fixing && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
parallel-test-fixing
GitHub stars
842
Token cost
~525 tokens
SKILL.md length
198 words
Files
1
Skills in repo
57
Repo updated
First seen
Licence
CC0-1.0

At a glance

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

  • Works in 5 steps: Run the Full Test Suite → Group Failures → Launch Parallel Subagents → …
  • Tasks that involve Failing and flaky tests
  • SKILL.md covers Workflow and Tips
  • Calls npm

What it does

Parallel Test Fixing is an agent skill from spencerpauly/awesome-cursor-skills. When multiple tests fail, assign each failing test file to a separate subagent that fixes it independently in parallel.

Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering Failing and flaky tests, Subagents and Test generation. The repository describes itself as: A curated list of awesome skills for Cursor. The licence is CC0-1.0.

When your agent uses it

  • Tasks that involve Failing and flaky tests
  • Tasks that involve Subagents
  • Tasks that involve Test generation

Example prompts

  • “/parallel-test-fixing”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Run the Full Test Suite
  2. Group Failures
  3. Launch Parallel Subagents
  4. Collect Results
  5. Verify

What it can do on your machine

Read from SKILL.md and the folder at commit 99cd265. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • npm

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Parallel Test Fixing loads about 525 tokens when it runs. Until then it costs about 35 tokens; SKILL.md has 198 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~35
When it runs · the whole SKILL.md, loaded when a task matches
~525

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from spencerpauly/awesome-cursor-skills at commit 99cd265, republished under its CC0-1.0 licence (© spencerpauly). 198 words, ~525 tokens.

Download SKILL.mdSave it as .claude/skills/parallel-test-fixing/SKILL.md (or your agent's skills folder).
name
parallel-test-fixing
description
When multiple tests fail, assign each failing test file to a separate subagent that fixes it independently in parallel.
user-invocable
true

Parallel Test Fixing

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

Workflow

1. Run the Full Test Suite
bash
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:

bash
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

© spencerpauly, CC0-1.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in resources/parallel-test-fixing of spencerpauly/awesome-cursor-skills.

Open the folder on GitHubat commit 99cd265

Compare with similar skills

Parallel Test Fixing next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Parallel Test Fixing compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Parallel Test Fixing this skillspencerpauly/awesome-cursor-skills842—~525Automated safety check: PassCC0-1.0
Eval Triage And Improvementmicrosoft/eval-guide138—~5.9kAutomated safety check: PassMIT
Opik Verifycomet-ml/opik-mcp219—~2.8kAutomated safety check: NotesApache-2.0
Poweruser Feature Auditpydantic/pydantic-ai20k—~2.9kAutomated safety check: PassMIT
Swig Testswig/swig6.3k—~2.3kAutomated safety check: PassCustom licence
Wioworkersio/skills190—~5.8kAutomated safety check: PassMIT

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Questions about Parallel Test Fixing

What does Parallel Test Fixing do?

When multiple tests fail, assign each failing test file to a separate subagent that fixes it independently in parallel. Parallel Test Fixing is an agent skill from spencerpauly/awesome-cursor-skills. When multiple tests fail, assign each failing test file to a separate subagent that fixes it independently in parallel.

When should I use Parallel Test Fixing?

Parallel Test Fixing fits situations like: tasks that involve Failing and flaky tests; tasks that involve Subagents; tasks that involve Test generation.

How do I install Parallel Test Fixing in Claude Code?

Run `npx skills add spencerpauly/awesome-cursor-skills --skill parallel-test-fixing -a claude-code`. Or copy the skill folder (resources/parallel-test-fixing in spencerpauly/awesome-cursor-skills) into .claude/skills/parallel-test-fixing in your project. Claude Code loads it when a task matches its description.

How do I install Parallel Test Fixing in Codex?

Run `npx skills add spencerpauly/awesome-cursor-skills --skill parallel-test-fixing -a codex`. Or copy the skill folder (resources/parallel-test-fixing in spencerpauly/awesome-cursor-skills) into .agents/skills/parallel-test-fixing in your project. Codex loads it when a task matches its description.

Can I use Parallel Test Fixing in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add spencerpauly/awesome-cursor-skills --skill parallel-test-fixing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/parallel-test-fixing, .gemini/skills/parallel-test-fixing, .github/skills/parallel-test-fixing and .opencode/skills/parallel-test-fixing in your project.

What does Parallel Test Fixing need to run?

Going by SKILL.md and its folder, Parallel Test Fixing needs the command-line tools its instructions call (npm).

Does Parallel Test Fixing access the network?

SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Parallel Test Fixing safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Parallel Test Fixing use?

Parallel Test Fixing is published under the CC0-1.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Parallel Test Fixing use?

About 525 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Parallel Test Fixing?

Skills that share tags, products or a category with Parallel Test Fixing: Eval Triage And Improvement (microsoft/eval-guide, 138 stars), Opik Verify (comet-ml/opik-mcp, 219 stars), Poweruser Feature Audit (pydantic/pydantic-ai, 20k stars) and Swig Test (swig/swig, 6.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Parallel Test Fixing?

spencerpauly (a GitHub user) maintains it in spencerpauly/awesome-cursor-skills, which has 842 GitHub stars. The repository holds 57 skills in this directory. The repository was last updated on August 2, 2026.

Source: spencerpauly/awesome-cursor-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.