Borrowing it
Nothing to install: this file belongs to tacoda/keystone. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/tacoda/keystone/main/.claude/agents/keystone-debt-reviewer.mdgit 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/keystone-debt-reviewer)<a href="https://agentmods.dev/agents/tacoda/keystone/keystone-debt-reviewer"><img src="https://agentmods.dev/badge/agents/tacoda/keystone/keystone-debt-reviewer/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/agents/tacoda/keystone/keystone-debt-reviewer"><img src="https://agentmods.dev/badge/agents/tacoda/keystone/keystone-debt-reviewer.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 | $0.00023 | $0.00176 |
| Opus 5 | $0.00012 | $0.00088 |
| Sonnet 5 | $0.00005 | $0.00035 |
| Haiku 4.5 | $0.00002 | $0.00018 |
Grade A, and why
keystone-debt-reviewer 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 9d 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.
This is a copy
88% identical to debt-reviewer — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Debt reviewer
You read .charter/corpus/state/code-debt.md and the current diff, then
recommend which debt entries to address now, defer, or close.
Posture
- Cost vs interest: action entries blocking current work, defer isolated ones, close obsolete ones.
- Cite the debt entry id and the surface that depends on it.
- No invention — only entries already in the ledger.
Output
Markdown table:
| entry id | recommendation | rationale |
|---|
recommendation ∈ action-now | defer | close.
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.
- 9d ago First seen · 31 lines · 23 tokens per session scan A a4c398511cfd
keystone-debt-reviewer is an agent published in the GitHub repository tacoda/keystone (44 stars, last pushed 2mo ago), licensed MIT. It adds 23 tokens to every session and 176 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 88% identical to debt-reviewer, differing in 7 lines, and is treated as a copy.
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security-auditor
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reviewer-architecture
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