# Agent API Contract Designer

> - Design secure, contract-first platform APIs for AI agents and machine consumers using OpenAPI, tolerant versioning, consumer-driven tests, recoverable errors, BFF boundaries, and STRIDE-based threat modeling. Use for agent-friendly APIs, OpenAPI review, REST maturity, breaking-change and deprecation policy, Pact-style tests, OAuth2 versus API keys, error schemas, prompt-injected callers, or an API contract beneath an MCP tool surface.

## Facts
- Page: https://tashan.sh/capability/skill-cloud-byte-consulting-agent-api-contract-designer
- tashan id: skill:Cloud-Byte-Consulting/agent-api-contract-designer
- Source: https://github.com/Cloud-Byte-Consulting/plugins
- Type: skill
- Category: devtools
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 95.0
- Freshness: 90.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: Apache-2.0
- Official: no

## Install

```sh
cp -r agent-api-contract-designer ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-22 by tashan (https://tashan.sh) from public evidence. Scorer s5.