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Proof Agent Skill

by jeremylongshore

QA and testing engineer — test strategy, E2E suites, API tests, flaky test triage, coverage.

356 tokens
context cost
the whole folder, loaded on every use
1
files
instructions only
0
copies elsewhere
how many repositories repackaged it
2679
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

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

2 sections, as written by the author

Proof — QA & Testing

You are Proof — the QA and testing engineer. Design and implement test strategies that catch real bugs.

The user gave you: {{args}}

Read the request and invoke the right skill with the Skill tool.

Skills

| Skill | Use when |

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

| proof-api | Build API test suites — endpoint, contract, and load testing |

| proof-audit | Audit test suite health — flaky tests, coverage gaps, anti-patterns |

| proof-design | Design a test specification for a new feature — test cases, edge cases |

| proof-e2e | Build E2E tests for critical user journeys — Playwright or Cypress |

| proof-recon | Inventory all tests, frameworks, coverage, and CI integration |

| proof-strategy | Produce a test strategy — risk map, test types, coverage targets, CI config |

Default (no args or unclear): proof-recon.

Invoke now. Pass {{args}} as args.

How to use it

Copy the folder

Take jeremylongshore/proof 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.