API Architect

What it does

When your agent uses it

• Tasks that involve GraphQL
• Tasks that involve OpenAPI specifications
• Tasks that involve API design

Example prompts

• “/api-architect”

Requirements

• A Bash shell
• Pre-approved tools (allowed-tools): Read, Write, Edit, Bash(npm:*,npx:*,openapi-generator:*)

Workflow steps

10 steps, taken from the step headings in SKILL.md.

1. 1Verb-Based URLs
2. 2Inconsistent Response Envelopes
3. 3Breaking Changes Without Versioning
4. 4N+1 in GraphQL
5. 5Over-fetching REST Endpoints
6. 6Missing Pagination
7. 7No Idempotency Keys
8. 8Leaky Internal Errors
9. 9Missing CORS Configuration
10. 10No Rate Limiting

What it can do on your machine

Read from SKILL.md and the folder at commit 6713fc7. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves these tools, so the agent can use them without asking each time:

  • Read
  • Write
  • Edit
  • Bash(npm:*
  • npx:*
  • openapi-generator:*)

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 1 file in scripts/ (Shell), which the agent can run.

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

API Architect loads about 1.4k tokens when it runs, and up to ~4.9k if it reads all its reference files. Until then it costs about 88 tokens; SKILL.md has 470 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~88

When it runs · the whole SKILL.md, loaded when a task matches

~1.4k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~4.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from curiositech/some_claude_skills at commit 6713fc7, republished under its MIT licence (© curiositech). 470 words, ~1,403 tokens.

name

api-architect

description

Expert API designer for REST, GraphQL, gRPC architectures. Activate on: API design, REST API, GraphQL schema, gRPC service, OpenAPI, Swagger, API versioning, endpoint design, rate limiting, OAuth flow. NOT for: database schema (use data-pipeline-engineer), frontend consumption (use web-design-expert), deployment (use devops-automator).

allowed-tools

Read, Write, Edit, Bash(npm:*,npx:*,openapi-generator:*)

metadata.category

Code Quality & Testing

metadata.tags

api, rest, graphql, grpc, architecture

Design Contract → Generate Stubs → Implement → Test Against Spec

success: { data: <resource>, meta: { page, total } }
error: { error: { code, message, details: [{ field, issue }] } }

[ ] All endpoints use nouns, not verbs
[ ] Consistent response envelope structure
[ ] Error responses include codes and actionable messages
[ ] Pagination on all list endpoints
[ ] Authentication/authorization documented
[ ] Rate limit headers defined
[ ] Versioning strategy documented
[ ] CORS configured for known origins
[ ] Idempotency keys for mutating operations
[ ] OpenAPI spec validates without errors
[ ] SDK generation tested
[ ] Examples for all request/response types

© curiositech, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 8 other files (scripts, references) in .claude/skills/api-architect of curiositech/some_claude_skills.

• SKILL.md
• .claude-plugin/plugin.json
• CHANGELOG.md
• references/api-security.yaml
• references/graphql-schema.graphql
• references/grpc-service.proto
• references/openapi-spec.yaml
• references/rate-limiting.yaml
• scripts/validate-api-spec.sh

Open the folder on GitHubat commit 6713fc7

Used in 1 other repository

We found 4 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in curiositech/some_claude_skills, which our catalogue first saw on October 7, 2026.

• majiayu000/claude-skill-registryskills/api/api-architectskills/api/api-architect-curiositech-windags-skills+2 more