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.
npx skills add charlesjones-dev/claude-code-plugins-dev --skill cvp-defense-auditgit clone --depth 1 https://github.com/charlesjones-dev/claude-code-plugins-devWrote 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.
[](https://agentmods.dev/skills/charlesjones-dev/claude-code-plugins-dev/cvp-defense-audit)<a href="https://agentmods.dev/skills/charlesjones-dev/claude-code-plugins-dev/cvp-defense-audit"><img src="https://agentmods.dev/badge/skills/charlesjones-dev/claude-code-plugins-dev/cvp-defense-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.
<a href="https://agentmods.dev/skills/charlesjones-dev/claude-code-plugins-dev/cvp-defense-audit"><img src="https://agentmods.dev/badge/skills/charlesjones-dev/claude-code-plugins-dev/cvp-defense-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00115 | $0.06245 |
| Opus 5.5 | $0.00046 | $0.02498 |
| Sonnet 5.5 | $0.00023 | $0.01249 |
| Haiku 4.5 | $0.00012 | $0.00624 |
Grade A, and why
cvp-defense-audit scanned grade A 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 7d 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.
Reads agent configuration directorieslowAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
3. Ask Claude to run `touch ~/sandbox-probe`. Expect `Operation not permitted` (macOS) or `Read-only file system` (Linux, WSL2). If it succeeds, delete the file and quit: a settings file is widening the sandbox, so check Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
How it starts
The opening of the file, as written. The whole thing — 216 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CVP defense audit
Use this only on code the user owns or is authorized to test.
This skill is phase 1 of a three-phase defensive audit:
- Plan (this skill). A normal, unsandboxed session on an Opus-class planning model does read-only recon, makes sure git ignores
docs/security/, and writes a paste-ready audit prompt, a sandbox launch checklist, and a fix prompt. - Audit. The user starts a new session on the strongest security-capable model they can use (the audit model), launched in auto mode with a strict sandbox set on the command line, and pastes the audit prompt. The audit model maps the attack surface, hunts, proves each finding with a failing test, and writes a report. The prompt ends with an output contract: the report at a fixed path, each test stored as a disabled file under
docs/security/tests/, anything else it keeps underdocs/security/harness/, and a check to run before finishing. Everything it leaves behind is underdocs/security/, which git ignores. It fixes nothing. - Fix. Back in a normal, unsandboxed session on an Opus-class fixing model, the user pastes the fix prompt. The fixing model verifies each proof, settles what code alone couldn't answer, lets the user pick what to fix, and ships each fix with its archived proof test restored as the regression test.
Do the recon here so the audit model spends its budget hunting and proving bugs instead of orienting. The supporting files sit next to this one, in ${CLAUDE_SKILL_DIR}.
Context
- Date: !
date +%F - Repo root: !
git rev-parse --show-toplevel 2>/dev/null || pwd - Branch: !
git branch --show-current 2>/dev/null || echo none - Remote: !
git remote get-url origin 2>/dev/null || echo none - Last commit: !
git log -1 --format='%h %s (%cr)' 2>/dev/null || echo none
Without git, the repo root is the working directory and the other values read none. Without a remote, skip the GitHub reads in step 2.
Arguments (may be empty): $ARGUMENTS
--model <id>(or--model=<id>) is the audit model ID for the launch line.- The rest is an optional focus: an area or path, such as
billingorsrc/auth. - If the arguments also state the user's authorization, such as "enrolled in the Cyber Verification Program with Defense Access" or "authorized pentest for , scope: api/ only", use it in step 1 instead of asking.
What ships with it
3 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.
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.
- 7d ago Changed · +13 lines c8d81a1c1286
- 9d ago First seen · 203 lines · 115 tokens per session scan A 3d5f9a218c0c
cvp-defense-audit is a skill published in the GitHub repository charlesjones-dev/claude-code-plugins-dev (35 stars, last pushed 6d ago), licensed MIT. It adds 115 tokens to every session and 6,245 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-08.
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