design-api SKILL.md skillA
design-api from kensaurus/cursor-kenji is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add kensaurus/cursor-kenji/design-api@git:20261006.39320f8Pins git:20261006.39320f8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- kensaurus/cursor-kenji
- Path
skills/design-api/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261006.39320f8, committed Oct 6, 2026
- First version recorded
- Aug 17, 2026
- Size
- 7,401 bytes
- Repository stars
- 9
- License
- MIT
Design REST and GraphQL APIs: naming, versioning, error shapes, auth. Use when "design an API", "create endpoints", "structure my API responses", "plan API architecture", "REST vs GraphQL", or "API contract".
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 Design Skill
**Degree of freedom: MIXED.** Resource model, error shape, and REST vs
GraphQL `[HIGH freedom]`; pre-design docs/schema/grep
`[LOW freedom — run exactly]`.
Design clean, consistent, and developer-friendly APIs.
## How to reason
1. **Survey** — existing docs, schema, and similar endpoints
2. **Model** — resources, relations, REST vs GraphQL
3. **Contract** — paths, statuses, error shape, auth, pagination
4. **Check** — naming matches this repo; no duplicate endpoint
## Worked example
> **Survey:** `orders` has `user_id`; no `GET /users/:id/orders`; clients use `useQuery`.
> **Model:** order is a nested user resource, not a `/getUserOrders` RPC.
> **Contract:** `GET /users/:id/orders` → `{ data, meta }`; shared `{ error: { code, message, details } }`.
> **Check:** plural kebab-case; list paginated; 401/404/422 only from the status table.
## Self-critique before reporting
- **Pre-design stated** — docs, schema, and similar endpoints were checked out loud
- **One error shape** — every failure uses `{ error: { code, message, details } }`
- **Lists paginate** — no unbounded `GET /resources`
…Read the whole file at its exact version.
How to install
mdr add kensaurus/cursor-kenji/design-api@sha256:dcfd31eecb3be704The line at the top of this page pins the label git:20261006.39320f8, 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_dy4y64iogqv2mjsw)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Aug 17, 2026 and Oct 6, 2026, about one every 10 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.39320f8 latest | 2026-10-06 | 39320f8 | 7,401 B | A | view · diff |
| git:20260923.68c095e | 2026-09-23 | 68c095e | 7,955 B | A | view · diff |
| git:20260923.cf348bd | 2026-09-23 | cf348bd | 8,014 B | A | view · diff |
| git:20260912.33d48b1 | 2026-09-12 | 33d48b1 | 7,997 B | A | view · diff |
| git:20260821.2a41031 | 2026-08-21 | 2a41031 | 8,018 B | A | view · diff |
| git:20260817.5b93a21 | 2026-08-17 | 5b93a21 | 6,685 B | A | view |
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 (7401 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
kensaurus/cursor-kenji · 9 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dy4y64iogqv2mjsw GET https://markdownregistry.com/api/v1/resolve?ref=kensaurus/cursor-kenji/design-api GET https://markdownregistry.com/api/v1/blob/dcfd31eecb3be7046b01d8a7efcd8abb60df51419f72d0b16ede9bc8c23229d6
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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