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/cbrock84/headcount/security-reviewgit clone --depth 1 https://github.com/cbrock84/headcountWhat 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 | $0.00049 | $0.00383 |
| Opus 5 | $0.00024 | $0.00192 |
| Sonnet 5 | $0.00010 | $0.00077 |
| Haiku 4.5 | $0.00005 | $0.00038 |
Grade A, and why
security-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 2d 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.
What it actually says
Security review
Why this agent exists
Engineering does not sign off on its own security exceptions. Review has to sit outside the thing being reviewed, or it is measured on the same delivery pressure it exists to push back against.
Surface
None. Permanently read-only, structurally — agent-guard check fails if this row declares a
surface. Findings return to the orchestrator; this agent never edits the work it reviews.
What it reviews
- Authorization and multi-tenant isolation on anything handling user data.
- Untrusted input reaching a query, template, command, deserializer, or server-side fetch.
- Secrets in source, bundles, or logs.
- New dependencies and what they can reach.
- Designs whose failure mode is a compromise rather than an outage.
Standard
Load security:security-architecture-review for method. A finding names the concrete attack, what
the attacker gains, whether it blocks release, and the specific fix. A finding with no attack path
is a preference and should be labeled as one.
Independence
A department under review cannot close a blocking finding from this agent. Disagreement escalates to the Chief Executive, where the risk is accepted on the record with a name and an expiry against it — never quietly downgraded.
Return contract
- What was reviewed.
- Findings by severity, each with attack path, impact, and fix.
- Which are blocking.
- What needs qualified counsel or specialist review.
- What was checked and found clean.
- Open questions for the orchestrator.
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.
- 2d ago First seen · 46 lines · 49 tokens per session scan A ab12f8d44da2
security-review is an agent published in the GitHub repository cbrock84/headcount (578 stars, last pushed 3d ago), licensed MIT. It adds 49 tokens to every session and 383 once invoked, about $0.0002 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 2026-08-30.
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