superpowers-verification-before-completion

superpowers-verification-before-completion is a skill for Claude Code, Codex from christopherarter/superpowers-reasonix. It costs 27 tokens per session (866 once invoked), scanned A, original, MIT.

A verification checklist for checking work before saying it is complete, fixed, or passing. It requires fresh evidence from the full command that directly tests the claim.

In plain words
What is it for?
Use it before reporting that tests pass, a build works, a linter is clean, or a bug is fixed; run the relevant checks and inspect their exit status and failures.
Why use it?
It prevents completion statements based only on assumptions, old test runs, partial checks, or code changes that were never exercised. The result must include the actual command outcome and any failures.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/christopherarter/superpowers-reasonix/superpowers-verification-before-completion
Any agent
npx skills add christopherarter/superpowers-reasonix --skill superpowers-verification-before-completion
Clone the repo
git clone --depth 1 https://github.com/christopherarter/superpowers-reasonix

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for superpowers-verification-before-completion

README.md
[![agentmods](https://agentmods.dev/badge/skills/christopherarter/superpowers-reasonix/superpowers-verification-before-completion.svg)](https://agentmods.dev/skills/christopherarter/superpowers-reasonix/superpowers-verification-before-completion)
Your own site
<a href="https://agentmods.dev/skills/christopherarter/superpowers-reasonix/superpowers-verification-before-completion"><img src="https://agentmods.dev/badge/skills/christopherarter/superpowers-reasonix/superpowers-verification-before-completion.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 866 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00027 $0.00866
Opus 5 $0.00014 $0.00433
Sonnet 5 $0.00005 $0.00173
Haiku 4.5 $0.00003 $0.00087

Measured 6d ago against content hash 405a237c21d6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

superpowers-verification-before-completion scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/superpowers-verification-before-completion/SKILL.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verification Before Completion

Overview

Claiming work complete without verification = dishonesty, not efficiency.

Core principle: Evidence before claims, always.

Break the letter = break the spirit.

The Iron Law

NO COMPLETION CLAIMS WITHOUT FRESH VERIFICATION EVIDENCE

Haven't run the verification command in this message? Cannot claim it passes.

The Gate Function

BEFORE claiming any status or expressing satisfaction:

1. IDENTIFY: What command proves this claim?
2. RUN: Execute the FULL command (fresh, complete) via bash
3. READ: Full output, check exit code, count failures
4. VERIFY: Does output confirm the claim?
   - If NO: State actual status with evidence
   - If YES: State claim WITH evidence
5. ONLY THEN: Make the claim

Skip any step = lying, not verifying

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: passes Code changed, assumed fixed
Regression test works Red-green cycle verified Test passes once
Subagent completed VCS diff shows changes Subagent reports "success"
Requirements met Line-by-line checklist Tests passing

Red Flags - STOP

  • "should", "probably", "seems to"
  • Satisfaction before verification ("Great!", "Perfect!", "Done!", etc.)
  • About to commit/push/PR unverified
  • Trusting subagent success reports
  • Relying on partial verification
  • "just this once"
  • Tired, want work over
  • ANY wording implying success without having run verification

Rationalization Prevention

Excuse Reality
"Should work now" RUN the verification
"I'm confident" Confidence ≠ evidence
"Just this once" No exceptions
"Linter passed" Linter ≠ compiler
"Subagent said success" Verify independently
"I'm tired" Exhaustion ≠ excuse
"Partial check is enough" Partial proves nothing
"Different words, rule doesn't apply" Spirit over letter

Read the full file on GitHub · 127 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 127 lines · 27 tokens per session scan A 405a237c21d6

Subscribe to this mod's changes

superpowers-verification-before-completion is a skill published in the GitHub repository christopherarter/superpowers-reasonix (96 stars, last pushed 16d ago), licensed MIT. It adds 27 tokens to every session and 866 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.