audit-hook-coverage

audit-hook-coverage is an agent for Claude Code from ReviewToolkits/cpython-security-toolkit. It costs 51 tokens per session (514 once invoked), scanned A, original, no licence file.

A security audit for code paths that load files or invoke shells. It looks for file-loading routes that skip sys.audit() hooks by using open() instead of io.opencode(), and for shell-call routes that validate input before replacing template values.

In plain words
What is it for?
It helps scan importlib, webbrowser, and venv code for unsafe file-loading and shell-calling patterns.
Why use it?
It helps find code paths where expected auditing or validation may be bypassed. The description specifically targets importlib, webbrowser, and virtual-environment code.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter.

Good fit It helps scan importlib, webbrowser, and venv code for unsafe file-loading and shell-calling patterns.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/reviewtoolkits/cpython-security-toolkit/audit-hook-coverage
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.

Clone the repo
git clone --depth 1 https://github.com/ReviewToolkits/cpython-security-toolkit

Made for: Claude Code.

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 audit-hook-coverage

README.md
[![agentmods](https://agentmods.dev/badge/agents/reviewtoolkits/cpython-security-toolkit/audit-hook-coverage/github.svg)](https://agentmods.dev/agents/reviewtoolkits/cpython-security-toolkit/audit-hook-coverage)
Your own site
<a href="https://agentmods.dev/agents/reviewtoolkits/cpython-security-toolkit/audit-hook-coverage"><img src="https://agentmods.dev/badge/agents/reviewtoolkits/cpython-security-toolkit/audit-hook-coverage/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 audit-hook-coverage

Your own site · 80×15
<a href="https://agentmods.dev/agents/reviewtoolkits/cpython-security-toolkit/audit-hook-coverage"><img src="https://agentmods.dev/badge/agents/reviewtoolkits/cpython-security-toolkit/audit-hook-coverage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 514 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00051 $0.00514
Opus 5.5 $0.00020 $0.00206
Sonnet 5.5 $0.00010 $0.00103
Haiku 4.5 $0.00005 $0.00051

Measured 1mo ago against content hash 809025b25a62, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

audit-hook-coverage 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 1mo 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.

plugins/cpython-security-toolkit/agents/audit-hook-coverage.md · 38 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 1mo ago First seen · 38 lines · 51 tokens per session scan A 809025b25a62

Subscribe to this mod's changes

audit-hook-coverage is an agent published in the GitHub repository ReviewToolkits/cpython-security-toolkit (1 stars, last pushed 1mo ago), with no licence file. It adds 51 tokens to every session and 514 once invoked, about $0.0002 per session on Opus 5.5. 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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