Public upstreamJesse Vincent / SuperpowersPublic source

Superpowers completion verification

Tie completion claims to fresh command output and explicit evidence.

Workflow

Superpowers’ verification skill checks which command proves a claim, runs it, reads its full result and reports the result with its actual limits before declaring work complete.

Use when

Verify a proposed completion, fix, build or test claim.

Required inputs

Change or claim to verify
Relevant acceptance criteria and validation commands

Expected outputs

Recorded verification results
Accurate completion status and remaining limitations

Prerequisites

Ability to run the commands that demonstrate the claimed behavior.
A passing check only supports the behavior that check actually covers.

Installation

Agent

Run this command in your project after reviewing the instructions and access terms. Install complete upstream directories to keep referenced rules and scripts.

npx skills add https://github.com/obra/superpowers/tree/bb92a77741419a4ab5f06e711a283343f1ada0c3/skills/verification-before-completion --skill verification-before-completion --agent claude-code

Project file: .claude/skills/verification-before-completion/SKILL.md

Read the setup guide

Selection brief

This brief helps you choose the skill. Read the complete upstream SKILL.md and companion files for its actual instructions.

# Superpowers completion verification (superpowers-verification)
Superpowers’ verification skill checks which command proves a claim, runs it, reads its full result and reports the result with its actual limits before declaring work complete.

## Use when
- Verify a proposed completion, fix, build or test claim.

## Required inputs
- Change or claim to verify
- Relevant acceptance criteria and validation commands

## Prerequisites
- Ability to run the commands that demonstrate the claimed behavior.
- A passing check only supports the behavior that check actually covers.

## Expected outputs
- Recorded verification results
- Accurate completion status and remaining limitations

Source: https://github.com/obra/superpowers/blob/bb92a77741419a4ab5f06e711a283343f1ada0c3/skills/verification-before-completion/SKILL.md
Full SKILL.md: https://agenttaste.dev/skills/superpowers-verification/SKILL.md

## Popularity evidence
- 302,164 GitHub repo stars — obra/superpowers; checked 2026-10-20. Source: https://github.com/obra/superpowers/stargazers
- 246,086 skill installs (all time) — obra/superpowers / verification-before-completion · skills.sh · all time; checked 2026-10-20. Source: https://skills.sh/obra/superpowers/verification-before-completion
Adoption counts are not user ratings or guarantees of quality.