Runs the project test suite and summarises results: pass/fail counts,
slowest tests, and coverage delta since the last run.
Commands:
run [pattern] — run all tests, or only tests matching pattern
watch — re-run affected tests on file change
coverage — run with coverage and print a branch summary
slowest [n] — list the n slowest tests (default 10)
diff — compare pass/fail counts to the last saved baseline
Autodetects: pytest (Python), vitest / jest (JS/TS), cargo test (Rust).
Results saved to .test-baseline.json in the project root.
1---2name: test-runner3description: test-runner4---5# test-runner67Runs the project test suite and summarises results: pass/fail counts,8slowest tests, and coverage delta since the last run.910<test-runner>11Use this skill to run tests and interpret results.1213Commands:14- `run [pattern]` — run all tests, or only tests matching pattern15- `watch` — re-run affected tests on file change16- `coverage` — run with coverage and print a branch summary17- `slowest [n]` — list the n slowest tests (default 10)18- `diff` — compare pass/fail counts to the last saved baseline1920Autodetects: `pytest` (Python), `vitest` / `jest` (JS/TS), `cargo test` (Rust).21Results saved to `.test-baseline.json` in the project root.22</test-runner>
Run npx skillmds@latest add ondrej-merkun/test-runner in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.
test-runner It is listed under Coding & Dev Tools on SkillMD.
This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.
This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.
Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.
ondrej-merkun (@ondrej-merkun) published this skill. Their other Agent Skills are listed on their SkillMD profile.
ondrej-merkun