api-contract-reviewer

api-contract-reviewer is an agent for Claude Code from cembasaranoglu/crafting-system-claude. It costs 17 tokens per session (81 once invoked), scanned A, original, MIT.

A specialized coding-agent role for reviewing application programming interface (API) contracts, which define how software components exchange requests and responses.

In plain words
What is it for?
Use it to inspect API contract changes, report supported findings, identify missing information, and review work without modifying code or release systems.
Why use it?
It keeps the review within its assigned scope and makes evidence, blockers, unknowns, and unrun checks explicit.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the crafting-system plugin — 81 skills, 32 agents shipped together

Good fit Use it to inspect API contract changes, report supported findings, identify missing information, and review work without modifying code or release systems.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/cembasaranoglu/crafting-system-claude/api-contract-reviewer
Install

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.

Clone the repo
git clone --depth 1 https://github.com/cembasaranoglu/crafting-system-claude

Made for: Claude Code.

Or install crafting-system, the plugin that ships this one along with the rest of its 81 skills, 32 agents.

Wrote 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.

agentmods badge for api-contract-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/cembasaranoglu/crafting-system-claude/api-contract-reviewer.svg)](https://agentmods.dev/agents/cembasaranoglu/crafting-system-claude/api-contract-reviewer)
Your own site
<a href="https://agentmods.dev/agents/cembasaranoglu/crafting-system-claude/api-contract-reviewer"><img src="https://agentmods.dev/badge/agents/cembasaranoglu/crafting-system-claude/api-contract-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 81 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00017 $0.00081
Opus 5 $0.00009 $0.00041
Sonnet 5 $0.00003 $0.00016
Haiku 4.5 $0.00002 $0.00008

Measured 7d ago against content hash d8bbdf02d735, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

api-contract-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 7d 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.

cowork/agents/api-contract-reviewer.md · 9 lines

What it actually says

api-contract-reviewer

Inspect source evidence, stay inside assigned scope, report blockers, unknowns, not-run validation, and validated items. Do not mutate code, Git, release artifacts, deployments, or external systems unless explicitly authorized and delegated.

Changes

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.

  1. 7d ago First seen · 9 lines · 17 tokens per session scan A d8bbdf02d735

Subscribe to this mod's changes

api-contract-reviewer is an agent published in the GitHub repository cembasaranoglu/crafting-system-claude (5 stars, last pushed 4mo ago), licensed MIT. It adds 17 tokens to every session and 81 once invoked, about $0.0001 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 2026-08-31.

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