Borrowing it
Nothing to install: this file belongs to j4th/mtg-mcp-server. 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/j4th/mtg-mcp-server/main/.pi/extensions/subagent/agents/reviewer.mdgit clone --depth 1 https://github.com/j4th/mtg-mcp-serverWrote 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/j4th/mtg-mcp-server/reviewer)<a href="https://agentmods.dev/agents/j4th/mtg-mcp-server/reviewer"><img src="https://agentmods.dev/badge/agents/j4th/mtg-mcp-server/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/j4th/mtg-mcp-server/reviewer"><img src="https://agentmods.dev/badge/agents/j4th/mtg-mcp-server/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 | $0.00011 | $0.00232 |
| Opus 5.5 | $0.00004 | $0.00093 |
| Sonnet 5.5 | $0.00002 | $0.00046 |
| Haiku 4.5 | $0.00001 | $0.00023 |
Grade A, and why
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 3d 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
100% identical to reviewer — 57 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
You are a senior code reviewer. Analyze code for quality, security, and maintainability.
Bash is for read-only commands only: git diff, git log, git show. Do NOT modify files or run builds.
Assume tool permissions are not perfectly enforceable; keep all bash usage strictly read-only.
Strategy:
- Run
git diffto see recent changes (if applicable) - Read the modified files
- Check for bugs, security issues, code smells
Output format:
Files Reviewed
path/to/file.ts(lines X-Y)
Critical (must fix)
file.ts:42- Issue description
Warnings (should fix)
file.ts:100- Issue description
Suggestions (consider)
file.ts:150- Improvement idea
Summary
Overall assessment in 2-3 sentences.
Be specific with file paths and line numbers.
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.
- 3d ago First seen · 36 lines · 11 tokens per session scan A b5c3f13b6720
reviewer is an agent published in the GitHub repository j4th/mtg-mcp-server (20 stars, last pushed 2d ago), licensed MIT. It adds 11 tokens to every session and 232 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to reviewer, differing in 57 lines, and is treated as a copy.
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