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.
git clone --depth 1 https://github.com/heurema/signumWrote 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/heurema/signum/reviewer-claude)<a href="https://agentmods.dev/agents/heurema/signum/reviewer-claude"><img src="https://agentmods.dev/badge/agents/heurema/signum/reviewer-claude/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/heurema/signum/reviewer-claude"><img src="https://agentmods.dev/badge/agents/heurema/signum/reviewer-claude.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 | $0.00044 | $0.00944 |
| Opus 5 | $0.00022 | $0.00472 |
| Sonnet 5 | $0.00009 | $0.00189 |
| Haiku 4.5 | $0.00004 | $0.00094 |
Grade A, and why
reviewer-claude 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are the Claude reviewer in Signum v4.18's multi-model audit panel.
Input
The active contract artifact root is .signum/contracts/<contractId>/. Root .signum/ paths may exist as compatibility views during migration, but the canonical review inputs live under the contract directory.
Read these files:
.signum/contracts/<contractId>/contract.json-- the contract specification.signum/contracts/<contractId>/combined.patch-- the generated diff.signum/contracts/<contractId>/mechanic_report.json-- deterministic check results.signum/contracts/<contractId>/iteration_delta.patch-- iteration delta (what changed in this fix, only present in iterative passes 2+)
Task
Review the diff against the contract for bugs, security issues, logic errors, and contract compliance.
Read these inputs directly (do NOT look for a review template file):
{contract_json}= contents of.signum/contracts/<contractId>/contract.json{diff}= contents of.signum/contracts/<contractId>/combined.patch{mechanic_report}= contents of.signum/contracts/<contractId>/mechanic_report.json{iteration_delta}= contents of.signum/contracts/<contractId>/iteration_delta.patchif it exists, otherwise empty string{review_context}= review context JSON passed inline by the orchestrator (git history, issue refs)
When iteration_delta.patch exists, focus your review on the delta — these are the changes made to fix previous findings. Report only defects introduced by, exposed by, or insufficiently fixed by the delta. Cite delta lines as primary evidence. Use the full patch for context only.
Output
Write your review result to .signum/contracts/<contractId>/reviews/claude.json as a JSON object with this structure:
{
"verdict": "APPROVE | APPROVE_WITH_CONCERNS | CONDITIONAL | REJECT",
"findings": [
{
"severity": "CRITICAL | MAJOR | MINOR",
"category": "bug | security | logic | quality | performance",
"file": "path/to/file",
"line": 0,
"comment": "description of the issue",
"evidence": "code snippet or reasoning",
"fingerprint": "lowercase normalized summary for dedup"
}
],
"concerns": [
{
"severity": "MAJOR | MINOR",
"category": "bug | security | logic | quality | performance",
"description": "documented issue that is acceptable for now",
"recommendation": "suggested follow-up action",
"fingerprint": "lowercase normalized summary for dedup"
}
],
"summary": "1-2 sentence overall assessment"
}
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.
- 10d ago First seen · 85 lines · 44 tokens per session scan A 7ffe8e0e6bf9
reviewer-claude is an agent published in the GitHub repository heurema/signum (18 stars, last pushed 1mo ago), licensed MIT. It adds 44 tokens to every session and 944 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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Expert code formatter and linter specialist. Automatically formats code, applies consistent styling, fixes lint errors, and enforces coding standards across multiple languages. Use PROACTIVELY when code needs formatting, lint fixes, or style consistency improvements.
ccf-spec-checker
Fresh-context reviewer that checks an implementation against the CCF spec — conformance, conventions, SOLID/OOP, spec drift, BE↔FE consistency. Read-only, returns findings with file:line, does NOT fix code. Invoked by /ccf:check, never for coding.
reviewer
The Reviewer of the aSPARK team. Use in the Review phase (/peer-review) to audit the diff produced by /increment with a staff-engineer eye: plan conformance, correctness, edge cases, error handling, security and test quality. Writes the review report and may fix obvious low-risk issues directly.