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 martinholovsky/SOTA-skills --skill sota-api-designgit clone --depth 1 https://github.com/martinholovsky/SOTA-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/martinholovsky/sota-skills/sota-api-design)<a href="https://agentmods.dev/skills/martinholovsky/sota-skills/sota-api-design"><img src="https://agentmods.dev/badge/skills/martinholovsky/sota-skills/sota-api-design/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/martinholovsky/sota-skills/sota-api-design"><img src="https://agentmods.dev/badge/skills/martinholovsky/sota-skills/sota-api-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00171 | $0.02279 |
| Opus 5 | $0.00086 | $0.01140 |
| Sonnet 5 | $0.00034 | $0.00456 |
| Haiku 4.5 | $0.00017 | $0.00228 |
Grade A, and why
sota-api-design 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 12d 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.
The source is not reproduced here
Licensed CC-BY-4.0
The repository is licensed CC-BY-4.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
7 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.
- 12d ago First seen · 149 lines · 171 tokens per session scan A 207d8778c2a6
sota-api-design is a skill published in the GitHub repository martinholovsky/SOTA-skills (19 stars, last pushed today), licensed CC-BY-4.0. It adds 171 tokens to every session and 2,279 once invoked, about $0.0009 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
add-handler
Scaffold a new HTTP handler with service function, store method (if needed), and table-driven test, following the project's internal/{api,service,store} layout. Invoke when the user asks to add an endpoint, handler, or route.
api-endpoint
Scaffold a new API endpoint with request/response Pydantic schemas, service function, route handler, and a pytest test — following the project's layered layout. Invoke when the user asks to add an endpoint, route, or API method.
backend
Backend development patterns for services, error handling, logging, caching. Use when building backend services, APIs, or microservices.
api
RESTful API design patterns and best practices. Use when creating endpoints, designing APIs, or implementing routes.
api-design-reviewer
Use when reviewing a PR that adds or changes API endpoints, auditing an existing API for v2 migration, or establishing REST API standards. Triggers on "API review", "REST design review", "breaking change check", "OpenAPI audit", "endpoint review", or "API consistency".
backend-service
Use when a ticket asks for backend business logic that isn't itself an endpoint or a migration — a service/use-case, a domain operation, a background job, or orchestration across repositories. Invoke for "add a service to do X", "implement the use-case", or "extract the business logic out of the handler".