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/tacoda/keystone/review-riskgit clone --depth 1 https://github.com/tacoda/keystoneWrote 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/tacoda/keystone/review-risk)<a href="https://agentmods.dev/agents/tacoda/keystone/review-risk"><img src="https://agentmods.dev/badge/agents/tacoda/keystone/review-risk.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 | $0.00030 | $0.00266 |
| Opus 5 | $0.00015 | $0.00133 |
| Sonnet 5 | $0.00006 | $0.00053 |
| Haiku 4.5 | $0.00003 | $0.00027 |
Grade A, and why
review-risk 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 5d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- keystone-review-risk — 89% identical, 7 lines differ
What it actually says
Sensor: review-risk
An agent reads the diff and reports risk concerns — blast radius, reversibility, hot-spot regions, fan-out and shared-state coupling, irreversible side effects.
- Trigger — review (review phase).
- Inputs — the diff, the spec,
corpus/state/risk-fingerprints.md(if present), and any region-relevant context. - Exit condition — no blocking findings, or the user explicitly accepts the residual risk.
- Output — findings list keyed by file and line, each tagged blocking / nit / note, with the risk dimension referenced (blast radius, reversibility, coupling, side effect).
- State writes — none.
How the agent is invoked is adapter-specific — sub-agent, separate session, MCP tool, or a checklist prompt — see .charter/adapters/<your-agent>/sensors.md. The bootstrap action records whether this sensor is available for the project's active adapter.
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.
- 5d ago First seen · 22 lines · 30 tokens per session scan A 7dc32b911d43
review-risk is an agent published in the GitHub repository tacoda/keystone (44 stars, last pushed 2mo ago), licensed MIT. It adds 30 tokens to every session and 266 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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