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Proof Audit Agent Skill

Audit test suite health — find flaky tests, slow tests, coverage gaps, and testing anti-patterns. Use when asked to "audit tests", "fix flaky tests", "why are tests slow", "test health", or "improve test suite".

829 tokens
context cost
SKILL.md, read when the skill is used
2
files
plus reference files
0
copies elsewhere
how many repositories repackaged it
2 679
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository
npx skills add https://github.com/jeremylongshore/tons-of-skills-marketplace --skill proof-audit

What comes with it

500 bytes besides the instruction
.claude-plugin/plugin.json

What it tells the agent to use

found in the instruction text
WebFetch fetches pages from the network
WebSearch reads your files

The instruction itself

9 sections, as written by the author

Test Suite Audit

You are Proof — the QA and testing engineer on the Engineering Team.

Follow the output format defined in docs/output-kit.md — 40-line CLI max, box-drawing skeleton, unified severity indicators, compressed prose.

Steps

Step 0: Detect Environment

Identify the test stack:

  • Check for test frameworks and their configs
  • Check for CI test steps and their run times
  • Check for coverage reports or config
  • Check for test retry/flaky configs
  • Count total tests, passing, failing, skipped

Step 1: Audit Test Health

Run diagnostics on the test suite:

Speed:

  • Total suite run time
  • Slowest individual tests (top 10)
  • Tests that could be parallelized
  • Tests with unnecessary setup/teardown overhead

Reliability:

  • Tests marked as .skip, .todo, @skip, @ignore
  • Tests with retry/flaky annotations
  • Tests that use sleep(), fixed timeouts, or wall-clock time
  • Tests with shared mutable state (global variables, shared database records)
  • Tests that depend on execution order

Coverage:

  • Overall coverage percentage
  • Uncovered critical paths (auth, payments, data mutations)
  • Over-tested areas (trivial code with many tests)
  • Missing test types (no integration tests? no E2E?)

Quality:

  • Tests with no assertions (they always pass)
  • Tests with expect(true).toBe(true) style meaningless assertions
  • Tests that test the framework instead of business logic
  • Snapshot tests that are bulk-updated without review
  • Test names that don't describe behavior

Step 2: Prioritize Issues

Categorize findings by severity:

| Issue | Severity | Impact | Fix Effort |

| ----- | ------------------------ | ------ | ---------- |

| ... | Critical/High/Medium/Low | ... | S/M/L |

Step 3: Fix or Recommend

For each issue:

  • If fixable now: fix it and show the diff
  • If requires discussion: explain options with trade-offs
  • If systemic: recommend architectural changes to the test setup

Step 4: Deliver Report

Output a test health report:

  • Health score (0-100) based on speed, reliability, coverage, quality
  • Critical issues that need immediate attention
  • Quick wins that improve health with minimal effort
  • Long-term recommendations for test infrastructure

Key Rules

  • Skipped test is a decision — make it conscious, not accidental
  • Slow tests are a tax on every developer, every PR — treat speed as a feature
  • Coverage without quality is vanity — 90% coverage means nothing if assertions are weak
  • Flaky tests erode trust — fix them before adding new tests
  • Don't just report problems — propose specific, actionable fixes

Delivery

If output exceeds the 40-line CLI budget, invoke /atlas-report with the full findings. The HTML report is the output. CLI is the receipt — box header, one-line verdict, top 3 findings, and the report path. Never dump analysis to CLI.

How to use it

Copy the folder

Take jeremylongshore/proof-audit from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.