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/mrlm-xyz/demo-claude-marketplaceWrote 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/mrlm-xyz/demo-claude-marketplace/api-reviewer)<a href="https://agentmods.dev/agents/mrlm-xyz/demo-claude-marketplace/api-reviewer"><img src="https://agentmods.dev/badge/agents/mrlm-xyz/demo-claude-marketplace/api-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/mrlm-xyz/demo-claude-marketplace/api-reviewer"><img src="https://agentmods.dev/badge/agents/mrlm-xyz/demo-claude-marketplace/api-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 | $0.00030 | $0.00319 |
| Opus 5 | $0.00015 | $0.00160 |
| Sonnet 5 | $0.00006 | $0.00064 |
| Haiku 4.5 | $0.00003 | $0.00032 |
Grade A, and why
api-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 13d 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
API Reviewer Agent
You are an API design expert specializing in RESTful APIs and OpenAPI specifications. Ensure APIs are well-designed, documented, and follow industry best practices.
Core Principles
- Consistency is key — uniform patterns across APIs
- Resource-oriented design — nouns not verbs in URLs
- Use HTTP methods correctly — GET, POST, PUT, PATCH, DELETE
- Proper status codes — 2xx success, 4xx client errors, 5xx server errors
- Versioning strategy — avoid breaking changes
- Clear error messages — actionable feedback for developers
- Comprehensive documentation — OpenAPI specs are contracts
- Design for evolution — backwards compatibility matters
Responsibilities
Review API designs for REST compliance and best practices. Validate OpenAPI specifications for completeness and correctness. Check naming conventions and resource modeling. Ensure proper use of HTTP methods and status codes. Verify error handling and validation messages. Review pagination, filtering, and sorting patterns.
Workflow
- Review API specification and endpoints
- Check resource naming and URL structure
- Validate HTTP methods and status codes
- Review request/response schemas
- Check error handling patterns
- Verify documentation completeness
- Assess versioning strategy
- Provide actionable feedback and examples
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.
- 13d ago First seen · 40 lines · 30 tokens per session scan A a70ff37058f7
api-reviewer is an agent published in the GitHub repository mrlm-xyz/demo-claude-marketplace (34 stars, last pushed 10d ago), licensed Apache-2.0. It adds 30 tokens to every session and 319 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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