api-contract-testing SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
api-contract-testing from francostino/opencode-skills-collection is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add francostino/opencode-skills-collection/api-contract-testing@git:20261014.4e5e06dPins git:20261014.4e5e06d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- francostino/opencode-skills-collection
- Path
bundled-skills/api-contract-testing/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261014.4e5e06d, committed Oct 14, 2026
- Size
- 6,638 bytes
- Repository stars
- 87
- License
- MIT
Design and review API contract tests across providers and consumers. Use for schema changes, compatibility regressions and client integration failures.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# API Contract Testing ## Overview Turn an API change into explicit provider and consumer checks. Start from the actual contract and affected clients, then verify wire-level behavior rather than relying on generated types or a successful build. Default to local fixtures and existing test tools; this skill does not provision a testing service. ## When to Use - A response field, endpoint, event schema or error envelope changes. - A client and server build successfully but disagree at runtime. - A team needs to distinguish a breaking change from a compatible extension. - A reported regression needs a minimal provider/consumer reproduction. Do not use this as authorization to call production endpoints, bypass access controls or publish a new API version. ## How It Works ### 1. Bind the contract and scope Identify the provider, transport, contract source and version, known consumers and the requested behavior. Read the real OpenAPI/JSON Schema/protobuf definition or documented examples and the corresponding server/client code. Record missing consumers and stale specifications as coverage gaps; do not invent interfaces or claim complete coverage from one client. …
Read the whole file at its exact version.
How to install
mdr add francostino/opencode-skills-collection/api-contract-testing@sha256:204dad386d8bb132The line at the top of this page pins the label git:20261014.4e5e06d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_36brs4firqevpqqq)
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Versions
The registry has recorded 1 version of this file, committed on Oct 14, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6638 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
francostino/opencode-skills-collection · 87 stars · license MIT · pushed 2026-10-18 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_36brs4firqevpqqq GET https://markdownregistry.com/api/v1/resolve?ref=francostino/opencode-skills-collection/api-contract-testing GET https://markdownregistry.com/api/v1/blob/204dad386d8bb1321255d3fda8517aec6a920004ca39da599e4f1abc7905b082
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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