obra/superpowers

verification-before-completion

Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims; evidence before assertions always

198K installs 281K starsUpdated Sep 1, 2026License: MIT

Install

npx skills add obra/superpowers@verification-before-completion

Runs in your terminal. Adds the skill globally for Claude Code, Cursor, Codex and others; add -g -y to skip prompts.

What it does

Verification Before Completion Overview Core principle: Evidence before claims, always. Violating the letter of this rule is violating the spirit of this rule. The Iron Law If you haven't run the verification command in this message, you cannot claim it passes. The Gate Function Common Failures Claim Requires Not Sufficient --------------------------------- Tests pass Test command output: 0 failures Previous run, "should pass" Linter clean Linter output: 0 errors Partial check, extrapolation Build succeeds Build command: exit 0 Linter passing, logs look good Bug fixed Test original symptom:…

Excerpt from the skill's own SKILL.md. Read the full file on GitHub before installing: skills run with your agent's permissions.

View source on GitHub

Before you install

Skills are plain text instructions the agent follows, sometimes with scripts. Check the source, prefer repositories with many installs and stars, and read any script it ships.

Categories

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Search skills

/skills/obra/superpowers/verification-before-completion/