{"slug":"jeffallan-api-designer","name":"api-designer","description":"Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards.","long_description":"---\nname: api-designer\ndescription: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards.\nlicense: MIT\nmetadata:\n  author: https://github.com/Jeffallan\n  version: \"1.1.0\"\n  domain: api-architecture\n  triggers: API design, REST API, OpenAPI, API specification, API architecture, resource modeling, API versioning, GraphQL schema, API documentation\n  role: architect\n  scope: design\n  output-format: specification\n  related-skills: graphql-architect, fastapi-expert, nestjs-expert, spring-boot-engineer, security-reviewer\n---\n\n# API Designer\n\nSenior API architect specializing in REST and GraphQL APIs with comprehensive OpenAPI 3.1 specifications.\n\n## Core Workflow\n\n1. **Analyze domain** — Understand business requirements, data models, and client needs\n2. **Model resources** — Identify resources, relationships, and operations; sketch entity diagram before writing any spec\n3. **Design endpoints** — Define URI patterns, HTTP methods, request/response schemas\n4. **Specify contract** — Create OpenAPI 3.1 spec; validate before proceeding: `npx @redocly/cli lint openapi.yaml`\n5. **Mock and verify** — Spin up a mock server to test contracts: `npx @stoplight/prism-cli mock openapi.yaml`\n6. **Plan evolution** — Design versioning, deprecation, and backward-compatibility strategy\n\n## Reference Guide\n\nLoad detailed guidance based on context:\n\n| Topic | Reference | Load When |\n|-------|-----------|-----------|\n| REST Patterns | `references/rest-patterns.md` | Resource design, HTTP methods, HATEOAS |\n| Versioning | `references/versioning.md` | API versions, deprecation, breaking changes |\n| Pagination | `references/pagination.md` | Cursor, offset, keyset pagination |\n| Error Handling | `references/error-handling.md` | Error responses, RFC 7807, status codes |\n| OpenAPI | `references/openapi.md` | OpenAPI 3.1, documentation, code generation |\n\n## Constraints\n\n### MUST DO\n- Follow REST principles (resource-oriented, proper HTTP methods)\n- Use consistent naming conventions (snake_case or camelCase — pick one, apply everywhere)\n- Include comprehensive OpenAPI 3.1 specification\n- Design proper error responses with actionable messages (RFC 7807)\n- Implement pagination for all collection endpoints\n- Version APIs with clear deprecation policies\n- Document authentication and authorization\n- Provide request/response examples\n\n### MUST NOT DO\n- Use verbs in resource URIs (use `/users/{id}`, not `/getUser/{id}`)\n- Return inconsistent response structures\n- Skip error code documentation\n- Ignore HTTP status code semantics\n- Design APIs without a versioning strategy\n- Expose implementation details in the API surface\n- Create breaking changes without a migration path\n- Omit rate limiting considerations\n\n## Templates\n\n### OpenAPI 3.1 Resource Endpoint (copy-paste starter)\n\n```yaml\nopenapi: \"3.1.0\"\ninfo:\n  title: Example API\n  version: \"1.1.0\"\npaths:\n  /users:\n    get:\n      summary: List users\n      operationId: listUsers\n      tags: [Users]\n      parameters:\n        - name: cursor\n          in: query\n          schema: { type: string }\n          description: Opaque cursor for pagination\n        - name: limit\n          in: query\n          schema: { type: integer, default: 20, maximum: 100 }\n      responses:\n        \"200\":\n          description: Paginated list of users\n          content:\n            application/json:\n              schema:\n                type: object\n                required: [data, pagination]\n                properties:\n                  data:\n                    type: array\n                    items: { $ref: \"#/components/schemas/User\" }\n                  pagination:\n                    $ref: \"#/components/schemas/CursorPage\"\n        \"400\": { $ref: \"#/components/responses/BadRequest\" }\n        \"401\": { $ref: \"#/components/responses/Unauthorized\" }\n        \"429\": { $ref: \"#/components/responses/TooManyRequests\" }\n  /users/{id}:\n    get:\n      summary: Get a user\n      operationId: getUser\n      tags: [Users]\n      parameters:\n        - name: id\n          in: path\n          required: true\n          schema: { type: string, format: uuid }\n      responses:\n        \"200\":\n          description: User found\n          content:\n            application/json:\n              schema: { $ref: \"#/components/schemas/User\" }\n        \"404\": { $ref: \"#/components/responses/NotFound\" }\n\ncomponents:\n  schemas:\n    User:\n      type: object\n      required: [id, email, created_at]\n      properties:\n        id:    { type: string, format: uuid, readOnly: true }\n        email: { type: string, format: email }\n        name:  { type: string }\n        created_at: { type: string, format: date-time, readOnly: true }\n\n    CursorPage:\n      type: object\n      required: [next_cursor, has_more]\n      properties:\n        next_cursor: { type: string, nullable: true }\n        has_more:    { type: boolean }\n\n    Problem:                       # RFC 7807 Problem Details\n      type: object\n      required: [type, title, status]\n      properties:\n        type:     { type: string, format: uri, example: \"https://api.example.com/errors/validation-error\" }\n        title:    { type: string, example: \"Validation Error\" }\n        status:   { type: integer, example: 400 }\n        detail:   { type: string, example: \"The 'email' field must be a valid email address.\" }\n        instance: { type: string, format: uri, example: \"/users/req-abc123\" }\n\n  responses:\n    BadRequest:\n      description: Invalid request parameters\n      content:\n        application/problem+json:\n          schema: { $ref: \"#/components/schemas/Problem\" }\n    Unauthorized:\n      description: Missing or invalid authentication\n      content:\n        application/problem+json:\n          schema: { $ref: \"#/components/schemas/Problem\" }\n    NotFound:\n      description: Resource not found\n      content:\n        application/problem+json:\n          schema: { $ref: \"#/components/schemas/Problem\" }\n    TooManyRequests:\n      description: Rate limit exceeded\n      headers:\n        Retry-After: { schema: { type: integer } }\n      content:\n        application/problem+json:\n          schema: { $ref: \"#/components/schemas/Problem\" }\n\n  securitySchemes:\n    BearerAuth:\n      type: http\n      scheme: bearer\n      bearerFormat: JWT\n\nsecurity:\n  - BearerAuth: []\n```\n\n### RFC 7807 Error Response (copy-paste)\n\n```json\n{\n  \"type\": \"https://api.example.com/errors/validation-error\",\n  \"title\": \"Validation Error\",\n  \"status\": 422,\n  \"detail\": \"The 'email' field must be a valid email address.\",\n  \"instance\": \"/users/req-abc123\",\n  \"errors\": [\n    { \"field\": \"email\", \"message\": \"Must be a valid email address.\" }\n  ]\n}\n```\n\n- Always use `Content-Type: application/problem+json` for error responses.\n- `type` must be a stable, documented URI — never a generic string.\n- `detail` must be human-readable and actionable.\n- Extend with `errors[]` for field-level validation failures.\n\n## Output Checklist\n\nWhen delivering an API design, provide:\n1. Resource model and relationships (diagram or table)\n2. Endpoint specifications with URIs and HTTP methods\n3. OpenAPI 3.1 specification (YAML)\n4. Authentication and authorization flows\n5. Error response catalog (all 4xx/5xx with `type` URIs)\n6. Pagination and filtering patterns\n7. Versioning and deprecation strategy\n8. Validation result: `npx @redocly/cli lint openapi.yaml` passes with no errors\n\n## Knowledge Reference\n\nREST architecture, OpenAPI 3.1, GraphQL, HTTP semantics, JSON:API, HATEOAS, OAuth 2.0, JWT, RFC 7807 Problem Details, API versioning patterns, pagination strategies, rate limiting, webhook design, SDK generation\n\n[Documentation](https://jeffallan.github.io/claude-skills/skills/api-architecture/api-designer/)\n","tagline":"Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. 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issue activity unavailable in current metadata"},{"id":"maintenance","label":"Recent maintenance","score":100,"weight":0.14,"status":"pass","detail":"28d since push"},{"id":"license","label":"License clarity","score":86,"weight":0.09,"status":"pass","detail":"MIT"},{"id":"documentation","label":"README/SKILL.md completeness","score":86,"weight":0.14,"status":"pass","detail":"Metadata includes enough usage and workflow context"},{"id":"dependency_risk","label":"Dependency/runtime risk","score":38,"weight":0.12,"status":"fail","detail":"command execution surface, credential or environment access"},{"id":"installability","label":"Install availability","score":92,"weight":0.1,"status":"pass","detail":"npx skills add Jeffallan/claude-skills --skill api-designer"},{"id":"install_safety","label":"Install command safety","score":92,"weight":0.1,"status":"pass","detail":"standard package or runtime install path"},{"id":"permission_surface","label":"Permission surface","score":18,"weight":0.07,"status":"fail","detail":"secrets or environment access, shell or command execution"},{"id":"repository","label":"Repository evidence","score":86,"weight":0.04,"status":"pass","detail":"https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer"},{"id":"review_status","label":"Review status","score":66,"weight":0.05,"status":"info","detail":"AI review data available"},{"id":"agent_outcomes","label":"Agent Proven outcomes","score":54,"weight":0.13,"status":"info","detail":"No agent outcome data yet"}],"checks":[{"status":"pass","label":"GitHub adoption","detail":"11K GitHub stars"},{"status":"pass","label":"Stars/forks activity","detail":"11K stars, 1.1K forks; issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"28d since push"},{"status":"pass","label":"License clarity","detail":"MIT"},{"status":"pass","label":"README/SKILL.md completeness","detail":"Metadata includes enough usage and workflow context"},{"status":"fail","label":"Dependency/runtime risk","detail":"command execution surface, credential or environment access"},{"status":"pass","label":"Install availability","detail":"npx skills add Jeffallan/claude-skills --skill api-designer"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"fail","label":"Permission surface","detail":"secrets or environment access, shell or command execution"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer"},{"status":"info","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"info","label":"OpenAgentSkill usage","detail":"No local usage activity yet"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Large GitHub adoption signal","Install command has no obvious high-risk pattern"],"warnings":["SKILL.md describes GraphQL API design and lists GraphQL schema triggers, but the included references and templates only cover REST/OpenAPI; 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Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"outcome_stats":null,"safety":{"score":37,"level":"avoid_auto_install","label":"Avoid automatic install","safety_tier":{"tier":"blocked","label":"Blocked for auto-install","badge":"BLOCKED","summary":"This skill should not be selected by an agent without explicit human security review.","recommended_action":"Do not auto-install. 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Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"jeffallan-api-designer\",\"task\":\"Install api-designer\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"api-designer\" as a Claude Code skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"jeffallan-api-designer\",\"task\":\"Install api-designer\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"api-designer\" from https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"jeffallan-api-designer\",\"task\":\"Install api-designer\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. 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Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards.","category":"research","url":"https://www.openagentskill.com/skills/jeffallan-api-designer","repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer","github_repo":"Jeffallan/claude-skills"},"suited_tasks":["RAG and knowledge workflows","Claude Code teams","teams that value GitHub adoption signals","Chunk documents","Create embeddings","Retrieve and cite relevant passages","Search sources","Extract claims"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add Jeffallan/claude-skills --skill api-designer","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add jeffallan-api-designer"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"api-designer\" agent skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"jeffallan-api-designer\",\"task\":\"Install api-designer\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"api-designer\" as a Claude Code skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"jeffallan-api-designer\",\"task\":\"Install api-designer\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"api-designer\" from https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"jeffallan-api-designer\",\"task\":\"Install api-designer\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/jeffallan-api-designer/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/jeffallan-api-designer"},"trust":{"score":70,"label":"Manual review","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"11K GitHub stars","repoActivity":"11K stars, 1.1K forks","lastPushed":"28d since push","license":"MIT","repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer","install":"npx skills add Jeffallan/claude-skills --skill api-designer","installSafety":"standard package or runtime install path","permissionSurface":"secrets or environment access, shell or command execution","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["research","agent-skill"],"known_risks":["SKILL.md describes GraphQL API design and lists GraphQL schema triggers, but the included references and templates only cover REST/OpenAPI; no GraphQL-specific guidance is present.","Quality score needs review","Permission surface needs review: secrets or environment access, shell or command execution","Dependency/runtime risk: command execution surface, credential or environment access","Permission surface: secrets or environment access, shell or command execution"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":81,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Dependency or permission surface needs review","Permission surface may require sandboxing","SKILL.md describes GraphQL API design and lists GraphQL schema triggers, but the included references and templates only cover REST/OpenAPI; no GraphQL-specific guidance is present.","Rate limiting is listed as a must-not-omit consideration and 429 responses are included in templates, but there is no reference file or detailed guidance on rate-limit design.","The SKILL.md references external npx tools (Redocly, Prism) without documenting prerequisites, installation, or how to handle environments without Node/npm.","Quality score needs review","Permission surface needs review: secrets or environment access, shell or command execution","Dependency/runtime risk: command execution surface, credential or environment access"]},"safety_gate":{"tier":"blocked","label":"Blocked for auto-install","auto_install_policy":"block","auto_install_allowed":false,"human_review_required":true,"blocked":true,"recommended_action":"Do not auto-install. Inspect the source, dependencies, and permission surface first."},"quality":{"score":87,"label":"Excellent"},"supply":{"track":"Research and knowledge work","scenario":"RAG and knowledge","maintenance":"28d since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","production agents without a repository review","SKILL.md describes GraphQL API design and lists GraphQL schema triggers, but the included references and templates only cover REST/OpenAPI; no GraphQL-specific guidance is present.","No OpenAgentSkill engagement data yet","High-risk permission hints: Shell or command execution, Secrets or environment access","Dependency or permission surface needs review","Permission surface may require sandboxing","Rate limiting is listed as a must-not-omit consideration and 429 responses are included in templates, but there is no reference file or detailed guidance on rate-limit design."],"agent_contract":{"task_input":"Use api-designer in an agent workflow","recommended_action":"Do not auto-install. Inspect the source, dependencies, and permission surface first.","install_policy":"block","minimum_review_before_use":["Trust: 70/100 Manual review","Audit: 81/100 Needs review","Safety: 37/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"jeffallan-api-designer (api-designer)","install_command":"npx skills add Jeffallan/claude-skills --skill api-designer","risk_summary":"Needs review; Blocked for auto-install; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"jeffallan-api-designer","task":"Use api-designer in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/jeffallan-api-designer","api":"https://www.openagentskill.com/api/agent/skills/jeffallan-api-designer","audit":"https://www.openagentskill.com/skills/jeffallan-api-designer/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=jeffallan-api-designer&task=Use%20api-designer%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20api-designer%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20api-designer%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/jeffallan-api-designer/install","manifest":"https://www.openagentskill.com/api/registry/manifest/jeffallan-api-designer"}},"supply_profile":{"track":{"slug":"research","label":"Research and knowledge work","shortLabel":"Research","description":"Deep research, source comparison, literature review, RAG, knowledge search, and reports."},"scenario":{"label":"RAG and knowledge","description":"I need my agent to build a RAG workflow over documents and retrieve reliable context.","useCases":[{"slug":"rag-knowledge","title":"RAG and knowledge"},{"slug":"research-agents","title":"Research agents"},{"slug":"github-automation","title":"GitHub automation"}]},"applicableAgents":["Claude Code","Cursor","CLI","Codex"],"install":{"ready":true,"command":"npx skills add Jeffallan/claude-skills --skill api-designer","primaryTarget":"CLI","targetCount":4},"githubQuality":{"stars":11283,"starsLabel":"11K","forks":1080,"license":"MIT","qualityScore":87,"trustScore":70,"auditScore":81},"maintenance":{"status":"fresh","label":"28d since push","daysSincePush":28,"lastPushedAt":"2026-08-07T20:19:18+00:00"},"risk":{"level":"needs_review","label":"Needs review","requiresReview":true,"notes":["Dependency or permission surface needs review","Permission surface may require sandboxing","SKILL.md describes GraphQL API design and lists GraphQL schema triggers, but the included references and templates only cover REST/OpenAPI; no GraphQL-specific guidance is present.","Rate limiting is listed as a must-not-omit consideration and 429 responses are included in templates, but there is no reference file or detailed guidance on rate-limit design.","The SKILL.md references external npx tools (Redocly, Prism) without documenting prerequisites, installation, or how to handle environments without Node/npm."]},"coverageTags":["Research","RAG and knowledge","agent-skill"]},"audit":{"audit_score":81,"risk_level":"needs_review","risk_label":"Needs review","quality_score":87,"trust_score":70,"maintenance_score":100,"security_score":70,"install_score":92,"warnings":["Dependency or permission surface needs review","Permission surface may require sandboxing","SKILL.md describes GraphQL API design and lists GraphQL schema triggers, but the included references and templates only cover REST/OpenAPI; no GraphQL-specific guidance is present.","Rate limiting is listed as a must-not-omit consideration and 429 responses are included in templates, but there is no reference file or detailed guidance on rate-limit design.","The SKILL.md references external npx tools (Redocly, Prism) without documenting prerequisites, installation, or how to handle environments without Node/npm.","Quality score needs review","Permission surface needs review: secrets or environment access, shell or command execution","Dependency/runtime risk: command execution surface, credential or environment access","Permission surface: secrets or environment access, shell or command execution"]},"quality_signals":{"model":"v2","star_score":28.37,"usage_score":0,"review_score":5.1,"metadata_score":3,"freshness_score":15},"platforms":["Claude Code","Cursor"],"use_cases":[{"slug":"rag-knowledge","title":"RAG and knowledge","url":"https://www.openagentskill.com/use-cases/rag-knowledge"},{"slug":"research-agents","title":"Research agents","url":"https://www.openagentskill.com/use-cases/research-agents"},{"slug":"github-automation","title":"GitHub automation","url":"https://www.openagentskill.com/use-cases/github-automation"},{"slug":"coding-agents","title":"Coding agents","url":"https://www.openagentskill.com/use-cases/coding-agents"}],"stacks":[{"slug":"rag-knowledge-base","title":"RAG knowledge base","url":"https://www.openagentskill.com/collections/rag-knowledge-base"},{"slug":"research-report-agent","title":"Research report agent","url":"https://www.openagentskill.com/collections/research-report-agent"},{"slug":"coding-review-agent","title":"Coding review agent","url":"https://www.openagentskill.com/collections/coding-review-agent"}],"install":"npx skills add Jeffallan/claude-skills --skill api-designer","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add jeffallan-api-designer","description":"Resolve policy, run the source installer safely, and report a verified install receipt.","copyLabel":"Copy command"},{"id":"codex","label":"Codex","title":"Codex install prompt","kind":"agent-prompt","value":"Install the \"api-designer\" agent skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"jeffallan-api-designer\",\"task\":\"Install api-designer\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Give Codex a repo-aware install prompt when the skill is not available through a local CLI.","copyLabel":"Copy prompt"},{"id":"claude-code","label":"Claude Code","title":"Claude Code skill prompt","kind":"agent-prompt","value":"Add \"api-designer\" as a Claude Code skill from https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"jeffallan-api-designer\",\"task\":\"Install api-designer\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this prompt to ask Claude Code to add the skill and explain the local activation steps.","copyLabel":"Copy prompt"},{"id":"cursor","label":"Cursor","title":"Cursor rule prompt","kind":"agent-prompt","value":"Turn \"api-designer\" from https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Use when designing REST or GraphQL APIs, creating OpenAPI specifications, or planning API architecture. Invoke for resource modeling, versioning strategies, pagination patterns, error handling standards. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"jeffallan-api-designer\",\"task\":\"Install api-designer\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this when installing as Cursor project rules or reusable agent instructions.","copyLabel":"Copy prompt"}],"repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer","github_repo":"Jeffallan/claude-skills","version":"1.0.0","license":"MIT","urls":{"web":"https://www.openagentskill.com/skills/jeffallan-api-designer","repository":"https://github.com/Jeffallan/claude-skills/tree/main/skills/api-designer","api":"/api/agent/skills/jeffallan-api-designer","install_api":"/api/skills/jeffallan-api-designer/install"},"meta":{"created_at":"2026-09-02T05:11:59.457621+00:00","updated_at":"2026-09-02T05:11:59.630125+00:00","agent_friendly":true}}