evidence-code-audit

evidence-code-audit is a skill for Claude Code, Codex from Quality-Max/free-qa-skills. It costs 59 tokens per session (1,350 once invoked), scanned B, original, Apache-2.0.

A read-only codebase auditing workflow that traces possible failure paths and records the evidence, severity, confidence, and areas examined.

In plain words
What is it for?
It helps audit a repository, subsystem, or branch for defects and risks, including data-integrity and concurrency concerns, using local files and Git history where needed.
Why use it?
It makes broad or focused code reviews more systematic and avoids presenting an audit of one subsystem as a verdict on the whole repository.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It helps audit a repository, subsystem, or branch for defects and risks, including data-integrity and concurrency concerns, using local files and Git history where needed.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/quality-max/free-qa-skills/evidence-code-audit
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.

Any agent
npx skills add Quality-Max/free-qa-skills --skill evidence-code-audit
Clone the repo
git clone --depth 1 https://github.com/Quality-Max/free-qa-skills

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 evidence-code-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/quality-max/free-qa-skills/evidence-code-audit/github.svg)](https://agentmods.dev/skills/quality-max/free-qa-skills/evidence-code-audit)
Your own site
<a href="https://agentmods.dev/skills/quality-max/free-qa-skills/evidence-code-audit"><img src="https://agentmods.dev/badge/skills/quality-max/free-qa-skills/evidence-code-audit/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for evidence-code-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/quality-max/free-qa-skills/evidence-code-audit"><img src="https://agentmods.dev/badge/skills/quality-max/free-qa-skills/evidence-code-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,350 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00059 $0.01350
Opus 5.5 $0.00024 $0.00540
Sonnet 5.5 $0.00012 $0.00270
Haiku 4.5 $0.00006 $0.00135

Measured 11d ago against content hash d36f021093af, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

evidence-code-audit scanned grade B with 1 finding 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 11d 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.

Harvests environment variablesmediumData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

- Never dump environment variables, secret files, credentials, provider logs, or

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/evidence-code-audit/SKILL.md · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Evidence Code Audit

Find actionable defects and show what supports each claim. An audit of one subsystem is not a verdict on the entire repository.

Prerequisites

  • Local repository access. Git is needed only for an incremental branch audit.
  • No packages, API keys, network access, or companion skills required.

Trigger

  • "Audit this codebase and show the evidence"
  • "Audit this branch for risks introduced by the changes"
  • "Review data integrity and concurrency in this subsystem"
  • "Do a full repository audit with coverage and fix priorities"

Workflow

1. Establish scope without an intake questionnaire

Honor the user's paths, base revision, focus, and output language. Otherwise use the conversation language and return Markdown in the conversation.

  • Incremental: when asked about a branch, PR, or diff. Identify the actual base from local repository context; compare the merge base with HEAD using git diff <base>...HEAD. For uncommitted work, inspect staged and unstaged changes separately, and inventory and inspect non-ignored untracked files within scope, applying the discovery exclusions below. Begin with filenames and change statistics, then inspect relevant hunks and untracked content with secrets redacted before they enter output. Read unchanged callers, consumers, configuration, and tests when the change affects their contract. Distinguish introduced defects from pre-existing ones.
  • Focused: when a subsystem or dimension is named. Inspect its entry points, state changes, failure boundaries, and relevant consumers.
  • Broad: otherwise. Map the system and prioritize security boundaries, stability, data integrity, concurrency, and test authenticity. A full audit considers every dimension in the checklist, marking irrelevant or inaccessible dimensions explicitly.

State the chosen scope and revisions when available. Ask only when missing information prevents a meaningful comparison; do not silently pick a base that changes the requested review.

Read the full file on GitHub · 130 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 130 lines · 59 tokens per session scan B d36f021093af

Subscribe to this mod's changes

evidence-code-audit is a skill published in the GitHub repository Quality-Max/free-qa-skills (11 stars, last pushed 12d ago), licensed Apache-2.0. It adds 59 tokens to every session and 1,350 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-05.

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