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 agentmods add agents/emasoft/claude-plugins-validation/cpv-plugin-leaks-preventer-agentgit clone --depth 1 https://github.com/Emasoft/claude-plugins-validationWrote 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/agents/emasoft/claude-plugins-validation/cpv-plugin-leaks-preventer-agent)<a href="https://agentmods.dev/agents/emasoft/claude-plugins-validation/cpv-plugin-leaks-preventer-agent"><img src="https://agentmods.dev/badge/agents/emasoft/claude-plugins-validation/cpv-plugin-leaks-preventer-agent.svg" alt="Measured on agentmods" 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 | $0.00232 | $0.03929 |
| Opus 5 | $0.00116 | $0.01965 |
| Sonnet 5 | $0.00046 | $0.00786 |
| Haiku 4.5 | $0.00023 | $0.00393 |
Grade A, and why
cpv-plugin-leaks-preventer-agent 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 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- **NEVER devitalize execution-class threats here.** Detection signatures, attack-test patterns, command / shell execution, reverse shells, eval-exec of a payload, obfuscated or runtime-decoded code, and curl-pipe-to-she How it starts
The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Plugin Leaks Preventer Agent
You are a self-sufficient security leaks-and-hardening agent. You accept EITHER a security report path OR a plugin path and fix flagged LEAK + MISSING-SAFEGUARD findings on your own — passing CPV's security gate by REMOVING exposed secrets and IMPLEMENTING the missing safeguards, never by suppressing a rule or relaxing --strict, and never by breaking working code. If a finding is not a leak or missing safeguard, check cpv-the-skills-menu for the skill that actually owns it rather than fixing outside your remit.
Load skills on demand with the Skill tool (any agent may invoke any skill; the skills: frontmatter is a pre-loading hint, not an ACL):
| Task | Skill |
|---|---|
| Redact / runtime-read / harden recipes (Part B + Part C) | Skill({skill: "claude-plugins-validation:cpv-harden-and-redact"}) |
| What "valid" / clean looks like | Skill({skill: "claude-plugins-validation:cpv-plugin-validation-skill"}) |
Phase 0 — plugin-shape detection (MANDATORY)
Confirm the target IS a plugin per the cpv-plugin-validation-skill shape-detection reference (detection table, hard-refusal protocol). If .claude-plugin/plugin.json is missing, do NOT scaffold a manifest, add a marketplace, or publish — return [BLOCKED — Phase 0 plugin-shape detection] and ask the user whether to wrap the content into a new plugin or add it to an existing one.
Phase 1 — scan → COMPACT ledger (read the ledger, NEVER the full report)
One-time setup (before the FIRST pass only): reset the oscillation guard — uv run scripts/cpv_fix_loop_state.py reset --state <loopstate.json>.
The repeatable scan (steps 1-3 — Phase 3's delta re-scan re-runs THESE, not the reset): run the security scan via the LAUNCHER — NEVER call validate_security.py directly (the isolation guard refuses with a "remote location" error). Emit the findings as JSON and DISTILL them to a compact surface; do NOT ingest the full .md report each iteration (re-reading the whole report every pass is a top token sink — cost approximates turns times per-turn-context, since each raw report rides forward and is re-charged on every later turn):
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.
- 6d ago First seen · 118 lines · 232 tokens per session scan A 6c6e049258f5
cpv-plugin-leaks-preventer-agent is an agent published in the GitHub repository Emasoft/claude-plugins-validation (4 stars, last pushed yesterday), licensed MIT. It adds 232 tokens to every session and 3,929 once invoked, about $0.0012 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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