Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add curiositech/some_claude_skills --skill api-architectgit clone --depth 1 https://github.com/curiositech/some_claude_skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/curiositech/some_claude_skills/api-architect)<a href="https://agentmods.dev/skills/curiositech/some_claude_skills/api-architect"><img src="https://agentmods.dev/badge/skills/curiositech/some_claude_skills/api-architect.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Anti-Refusal · line 90 Skill instructs the agent to omit warnings, disclaimers, or ethical commentary. Stripping safety caveats hides risk from the user and is a common jailbreak preamble.Fix: Remove instructions that suppress warnings, disclaimers, or ethical commentary. Let the agent surface safety-relevant caveats to the user.
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00083 | $0.01437 |
| Opus 5 | $0.00042 | $0.00718 |
| Sonnet 5 | $0.00017 | $0.00287 |
| Haiku 4.5 | $0.00008 | $0.00144 |
Grade A, and why
api-architect scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.
API Architect
Expert API designer specializing in REST, GraphQL, gRPC, and WebSocket architectures.
Activation Triggers
Activate on: "API design", "REST API", "GraphQL schema", "gRPC service", "OpenAPI", "Swagger", "API versioning", "endpoint design", "rate limiting", "OAuth flow", "API gateway"
NOT for: Database schema → data-pipeline-engineer | Frontend consumption → web-design-expert | Deployment → devops-automator
Quick Start
- Define API contract first (API-first design)
- Choose paradigm: REST for CRUD, GraphQL for flexible queries, gRPC for internal services
- Write the spec: OpenAPI for REST, SDL for GraphQL, .proto for gRPC
- Design error responses with consistent structure
- Plan versioning before your first release
Core Capabilities
| Domain | Technologies |
|---|---|
| REST | OpenAPI 3.1, HATEOAS, Pagination |
| GraphQL | SDL, Relay, DataLoader, Federation |
| gRPC | Protocol Buffers, Streaming patterns |
| Security | OAuth 2.0, JWT, API Keys, RBAC |
| DX | Swagger UI, SDK generation, Sandboxes |
Architecture Patterns
API-First Development
Design Contract → Generate Stubs → Implement → Test Against Spec
Response Envelope
success: { data: <resource>, meta: { page, total } }
error: { error: { code, message, details: [{ field, issue }] } }
Versioning Options
- URL:
/v1/users(most explicit) - Header:
Accept: application/vnd.api+json;version=1 - Query:
/users?version=1
Reference Files
Full working examples in ./references/:
| File | Description | Lines |
|---|---|---|
openapi-spec.yaml |
Complete OpenAPI 3.1 spec | 162 |
graphql-schema.graphql |
GraphQL with Relay connections | 111 |
grpc-service.proto |
Protocol Buffer, all streaming | 95 |
rate-limiting.yaml |
Tier-based rate limit config | 85 |
api-security.yaml |
Auth, CORS, security headers | 130 |
Anti-Patterns (AVOID These)
What ships with it
8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 8d ago First seen · 160 lines · 83 tokens per session scan A 640ab40731ab
api-architect is a skill published in the GitHub repository curiositech/some_claude_skills (214 stars, last pushed yesterday), licensed MIT. It adds 83 tokens to every session and 1,437 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
mem0-oss-to-platform
Plan and then execute a migration of a project from the mem0 open-source / self-hosted SDK (the local Memory class) to the mem0 Platform / hosted / managed SDK (the MemoryClient class). Use this whenever a developer wants to move, switch, or migrate their mem0 usage off OSS/self-hosted to the hosted API — e.g.…
agui-dotnet-protobuf
Use the protobuf wire transport (instead of the default Server-Sent Events) for an AG-UI connection with the AG-UI .NET SDK — a compact binary event stream negotiated via the Accept header. USE FOR: making an AGUIChatClient prefer protobuf by wiring an AGUIEventStreamHandler with ProtobufEventStreamFormatter (then…
azure-mgmt-botservice-dotnet
Azure Resource Manager SDK for Bot Service in .NET. Management plane operations for creating and managing Azure Bot resources, channels (Teams, DirectLine, Slack), and connection settings. Triggers: "Bot Service", "BotResource", "Azure Bot", "DirectLine channel", "Teams channel", "bot management .NET", "create bot".
fastapi-router-py
Create FastAPI routers with CRUD operations, authentication dependencies, and proper response models. Use when building REST API endpoints, creating new routes, implementing CRUD operations, or adding authenticated endpoints in FastAPI applications.
migrate-segw-to-rap
Reverse-engineer a SEGW-built OData V2 service (MPC/DPC/MPCEXT/DPCEXT) into a modern RAP V4 service — tables, CDS views (interface + projection), behavior definitions, draft entities, service definition + binding. Use when asked to "migrate this SEGW service to RAP", "convert OData V2 to V4 RAP", "modernize this…
telnyx-messaging-hosted-curl
Set up hosted SMS numbers, toll-free verification, and RCS messaging. Use when migrating numbers or enabling rich messaging features. This skill provides REST API (curl) examples.