Verification Before Claiming Done
A rule that turns 'it should work' into evidence, and names the four claims that are usually false.
Para qué sirve En inglés
"It should work" is not a result. This turns the claim into evidence — run it, show the output, name what was not covered — and lists the four claims that are wrong most often. Use it as the last step of any task an agent reports as finished.
La skill
Do not report a task complete on the strength of having written the code. Run it, and say what you ran. Before saying done, produce evidence for each claim you are making: | Claim | Evidence that settles it | |---|---| | "It compiles" | The build command and its exit status | | "Tests pass" | The runner output, including the count | | "The bug is fixed" | The failing case, re-run, now passing | | "It works in the app" | The app running, and what you saw | Four claims that are usually false when unverified: - **"It should work now."** Say what you ran, or say you did not run it. - **"Tests pass"** after only running the one test you wrote. - **"No other callers"** without having searched for them. - **"Exit code 0"** from a pipeline whose last stage was an `echo`. The exit status of a pipeline is its LAST command; check the one you meant. If something could not be verified, say which part and why, rather than rounding it up. A report that names its own gap is usable; one that does not is a thing the reader has to re-check from scratch, which costs more than the gap.
Cómo instalarla
Claude Code / Claude Desktop 1. Create a folder named after the skill inside your skills directory: - Claude Code: `~/.claude/skills/<skill-name>/` - A project-local skill: `<project>/.claude/skills/<skill-name>/` 2. Save the text below as `SKILL.md` in that folder, keeping the `---` frontmatter block at the top — the `name` and `description` fields are what make the skill discoverable. 3. Restart Claude Code, or run `/skills` to confirm it is listed. The skill loads only when its `description` matches what you are doing, so a precise description matters more than a long body.