Can Claude skip verification if the change is small?

No, the skill's 'Iron Law' prohibits any exceptions, ensuring that even minor changes are verified to prevent unexpected regressions.

Why is 'evidence before assertions' important?

It prevents 'hallucinated' success where the AI assumes code works without actually testing the execution path, maintaining trust between the AI and the developer.

What does this skill actually do?

It forces Claude to run a verification command and show the output before it is allowed to say a task is finished, ensuring every success claim is backed by data.

Does this work with any test runner?

Yes, the skill is command-agnostic and applies to any CLI-based verification tool including Jest, Pytest, ESLint, or custom build scripts.

Verification Before Completion

Name: Verification Before Completion
Author: seanGSISG

byseanGSISG

0•

Security & Testing

Mandates the execution of verification commands and evidence gathering before any task is marked as complete.

This skill enforces a rigorous 'evidence-first' workflow for Claude, preventing it from claiming success or completion without providing fresh verification data. By requiring a strict gate function—identifying the proof command, executing it, and analyzing the full output—it eliminates common failures like 'should-work' assumptions and unverified bug fixes. It is essential for maintaining high code quality and trust, ensuring that every claim of success is backed by recent test results, linter outputs, or build logs rather than mere confidence.

Key Features

01Implements a 5-step gate function (Identify, Run, Read, Verify, Claim)

02Identifies and blocks 'red flag' language like 'should' or 'probably'

03Supports TDD workflows with required Red-Green-Refactor verification

040 GitHub stars

05Mandates fresh verification evidence for every success claim

06Prevents blind trust in delegated agent reports and partial linter passes

Use Cases

01Ensuring unit and integration tests pass before opening a Pull Request

02Verifying bug fixes through documented Red-Green regression cycles

03Confirming build and lint success in complex CI/CD environments

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add seangsisg/crispy-claude verification-before-completion

For use in Claude.ai and ChatGPT

Download Skill