review

review is a skill for Claude Code, Codex from asimons81/hardproof. It costs 23 tokens per session (286 once invoked), scanned A, original, Apache-2.0.

A review process for checking a Hardproof implementation against its approved design, code, tests, security boundaries, and risks. Hardproof is the surrounding process for documenting and verifying engineering work.

In plain words
What is it for?
Use it to review a completed implementation, inspect its final changes and tests, classify problems by impact, and record whether the work is ready for approval.
Why use it?
It provides an independent check for incorrect behavior, weak tests, security problems, compatibility issues, and maintainability concerns. Blocking problems must be fixed or formally waived before approval.

Skill for Claude CodeCodex

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/asimons81/hardproof/review
Any agent
npx skills add asimons81/hardproof --skill review
Clone the repo
git clone --depth 1 https://github.com/asimons81/hardproof

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 review

README.md
[![agentmods](https://agentmods.dev/badge/skills/asimons81/hardproof/review.svg)](https://agentmods.dev/skills/asimons81/hardproof/review)
Your own site
<a href="https://agentmods.dev/skills/asimons81/hardproof/review"><img src="https://agentmods.dev/badge/skills/asimons81/hardproof/review.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 286 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 $0.00023 $0.00286
Opus 5 $0.00012 $0.00143
Sonnet 5 $0.00005 $0.00057
Haiku 4.5 $0.00002 $0.00029

Measured 4d ago against content hash 58ce2d498e5f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

review 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 4d 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.

hardproof/skills/review/SKILL.md · 35 lines

What it actually says

Challenge the Result

Purpose

Apply judgment independent from implementation and make blocking findings durable.

When to use

Use for the REVIEW stage selected by the active run context.

Inputs

Read the request, approved design and plan, task acceptance notes, complete diff, tests, migrations, documentation, and risk records.

Procedure

  1. Compare observable behavior with the approved contract.
  2. Inspect correctness, failure paths, security boundaries, compatibility, maintainability, and test strength.
  3. Classify findings by impact and cite concrete files or evidence.
  4. Send blocking fixes back to IMPLEMENT and require re-review.
  5. Record the review and outcome with hardproof_record.

Required records

Standard and Critical runs require a review artifact. Record an approved review outcome only after blocking findings are resolved; a human waiver must use the human command surface.

Exit criteria

Every blocking finding is fixed or validly waived, review provenance is clear, and the final diff—not an earlier snapshot—was examined.

Failure modes

Do not review from summaries alone, approve your own unsupported assertions, or bury uncertainty. Return to IMPLEMENT when the code changes.

Verification

Reinspect fixes and tests, record the final outcome, then call hardproof_transition for VERIFY.

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. 4d ago First seen · 35 lines · 23 tokens per session scan A 58ce2d498e5f

Subscribe to this mod's changes

review is a skill published in the GitHub repository asimons81/hardproof (5 stars, last pushed 3d ago), licensed Apache-2.0. It adds 23 tokens to every session and 286 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 2026-08-31.

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