api-designer SKILL.md skillA

api-designer from nguyenthienthanh/aura-frog is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add nguyenthienthanh/aura-frog/api-designer@git:20260515.6be9f59

Pins git:20260515.6be9f59 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
nguyenthienthanh/aura-frog
Path
aura-frog/skills/api-designer/SKILL.md
Versions recorded
5
Latest version
git:20260515.6be9f59, committed May 15, 2026
First version recorded
Apr 17, 2026
Size
3,170 bytes
Repository stars
25
License
MIT

Designs RESTful APIs with endpoint naming, versioning strategies (URL path, header-based), pagination (offset and cursor), error response schemas, and OpenAPI conventions. Use when the user asks about REST API design, creating endpoints, URL structure, API versioning, status codes, Swagger, or OpenAPI specs.

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

> **AI-consumed reference.** Optimized for Claude to read during execution.
> Human-readable explanation: see [docs/architecture/HIERARCHICAL_PLANNING.md](../../../docs/architecture/HIERARCHICAL_PLANNING.md)
> or [docs/getting-started/](../../../docs/getting-started/) depending on topic.

# Skill: API Designer

Design consistent, RESTful APIs with versioning, documentation, and error handling.

---

## RESTful Conventions

| Method | Endpoint | Purpose | Response |
|--------|----------|---------|----------|
| GET | /users | List | 200 + array |
| GET | /users/:id | Get one | 200 / 404 |
| POST | /users | Create | 201 + created |
| PUT | /users/:id | Replace | 200 / 404 |
| PATCH | /users/:id | Update | 200 / 404 |
| DELETE | /users/:id | Delete | 204 / 404 |

Nested: `GET /users/:userId/orders`

---

## Naming

- Resources: plural nouns (`/users`, `/orders`)
- Query params: snake_case (`page_size`)
- Request/Response bodies: camelCase

**Versioning:** URL path `/api/v1/...` (recommended).

---

## Response Format

**Success:** `{ "data": {...}, "meta": {...} }`
**List:** Add `meta: { page, pageSize, total, totalPages }`
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add nguyenthienthanh/aura-frog/api-designer@sha256:b973b278e78656c9

The line at the top of this page pins the label git:20260515.6be9f59, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_qdqtg7ubkc7hwlhz.svg)](https://markdownregistry.com/a/art_qdqtg7ubkc7hwlhz)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Apr 17, 2026 and May 15, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
git:20260515.6be9f59 latest2026-05-15 6be9f59 3,170 BA view · diff
git:20260511.cb3c13c2026-05-11 cb3c13c 2,879 BA view · diff
git:20260428.3e002772026-04-28 3e00277 2,381 BA view · diff
git:20260428.bdee3232026-04-28 bdee323 2,359 BA view · diff
git:20260417.801509f2026-04-17 801509f 2,412 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3170 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

GitHub

nguyenthienthanh/aura-frog · 25 stars · license MIT · pushed 2026-10-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qdqtg7ubkc7hwlhz
GET https://markdownregistry.com/api/v1/resolve?ref=nguyenthienthanh/aura-frog/api-designer
GET https://markdownregistry.com/api/v1/blob/b973b278e78656c95ce70261ea95ed225a87c751fffbbcc2200ae66ddab18916

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.

More from nguyenthienthanh/aura-frog

CLAUDE.md@aura-frog CLAUDE.md file
nguyenthienthanh/aura-frog · aura-frog/CLAUDE.md
git:20261001.e86bd63 · audit A · 25 stars
agent-detector SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/agent-detector/SKILL.md · CRITICAL: MUST run for EVERY message. Detects agent, complexity, AND model automatically. Without this, tasks route to…
git:20260812.7cc066c · audit A · 25 stars
bugfix-quick SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/bugfix-quick/SKILL.md · Fast bug fixes with root cause investigation + TDD. Enforces 'no fix without root cause' discipline and verification…
git:20260515.6be9f59 · audit A · 25 stars
chain-of-verification SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/chain-of-verification/SKILL.md · Draft → generate verification questions → answer independently via tools → revise. Catches hallucinated facts in…
git:20260924.947d255 · audit A · 25 stars
code-reviewer SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/code-reviewer/SKILL.md · 8-aspect evidence-based code review/audit (security, correctness, compatibility, architecture, error handling, test…
git:20260924.947d255 · audit A · 25 stars
code-simplifier SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/code-simplifier/SKILL.md · Detect and simplify overly complex code. Apply KISS principle - less is more.
git:20260515.6be9f59 · audit A · 25 stars
conflict-detector SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/conflict-detector/SKILL.md · L1-L4 conflict detection between a proposed T4 task and pending-confirm sibling tasks. L1 (file overlap) + L2…
git:20260515.6be9f59 · audit A · 25 stars
deep-debugging SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/deep-debugging/SKILL.md · Systematic debugging protocol for bugs that resist quick fixes. Use bisection, hypothesis trees, and scientific method…
git:20260515.6be9f59 · audit A · 25 stars
design-expert SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/design-expert/SKILL.md · UI/UX design expertise — component design, design system selection, responsive layout. Includes auto-detection from…
git:20260717.c6df55c · audit A · 25 stars
design-tokens SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/design-tokens/SKILL.md · Generate a cohesive color-token system from ONE OKLCH brand hue — primary/secondary/background/foreground/muted/border…
git:20260717.c6df55c · audit A · 25 stars
design-vision-loop SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/design-vision-loop/SKILL.md · Vision feedback loop for UI — render the running UI, screenshot it across viewports + dark mode, run deterministic…
git:20260728.fc5e06b · audit A · 25 stars
documentation SKILL.md skill
nguyenthienthanh/aura-frog · aura-frog/skills/documentation/SKILL.md · Create Runbooks for operational documentation. For ADRs, tech specs, requirements, LLD and technical analysis use the…
git:20260824.41a90bf · audit A · 25 stars

Every file in nguyenthienthanh/aura-frog

Other files named api-designer

api-designer SKILL.md skill
sickn33/agentic-awesome-skills · plugins/agentic-awesome-skills-claude/skills/api-designer/SKILL.md · Generates complete, production-ready REST API endpoint specifications for any system or domain the user describes.
git:20261014.73188c9 · audit A · 48,329 stars
api-designer SKILL.md skill
jeffallan/claude-skills · skills/api-designer/SKILL.md · Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for…
v1.1.0 · audit A · 12,006 stars
api-designer SKILL.md skill
sandbaseai/sandbase-skills · marketing/api-designer/SKILL.md · Plan, implement, or review api designer work in an existing codebase with compatibility, security, and verification…
git:20260908.a887321 · audit A · 202 stars
api-designer SKILL.md skill
francostino/opencode-skills-collection · bundled-skills/api-designer/SKILL.md · Generates complete, production-ready REST API endpoint specifications for any system or domain the user describes.
git:20260906.7d37dc9 · audit A · 87 stars
api-designer SKILL.md skill
jahidulislamseo/antigravity-ai-skills · skills/api-designer/SKILL.md · Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for…
v1.1.0 · audit A · 4 stars
api-designer SKILL.md skill
zacklecon/claude-skills · skills/api-designer/SKILL.md · Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for…
v1.0.0 · audit A · 3 stars

Browse by kind, by grade A, or by owner.