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 Omar-Obando/qwen-orchestrator --skill api-designgit clone --depth 1 https://github.com/Omar-Obando/qwen-orchestratorWrote 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/omar-obando/qwen-orchestrator/api-design)<a href="https://agentmods.dev/skills/omar-obando/qwen-orchestrator/api-design"><img src="https://agentmods.dev/badge/skills/omar-obando/qwen-orchestrator/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/omar-obando/qwen-orchestrator/api-design"><img src="https://agentmods.dev/badge/skills/omar-obando/qwen-orchestrator/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 | $0.00034 | $0.01122 |
| Opus 5 | $0.00017 | $0.00561 |
| Sonnet 5 | $0.00007 | $0.00224 |
| Haiku 4.5 | $0.00003 | $0.00112 |
Grade A, and why
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 9d 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 — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.
API Design Skill — Professional API Patterns
This skill provides comprehensive API design guidance following industry best practices.
RESTful API Standards
URL Structure
GET /api/v1/resources # List (paginated, filtered)
GET /api/v1/resources/:id # Detail (with includes)
POST /api/v1/resources # Create
PATCH /api/v1/resources/:id # Partial update
PUT /api/v1/resources/:id # Full replace
DELETE /api/v1/resources/:id # Delete (soft by default)
POST /api/v1/resources/:id/restore # Restore soft-deleted
Response Envelope
// Success - Single
{ data: { ... }, meta: { requestId, timestamp } }
// Success - Collection
{
data: [...],
meta: { requestId, timestamp },
pagination: {
page: 1,
perPage: 20,
total: 150,
totalPages: 8,
hasNext: true,
hasPrev: false
}
}
// Error
{
error: {
code: "VALIDATION_ERROR",
message: "Human-readable message",
details: [
{ field: "email", message: "Invalid email format" }
]
},
meta: { requestId, timestamp }
}
Filtering & Sorting
GET /api/v1/products?
filter[category]=electronics&
filter[price_min]=10&
filter[price_max]=100&
filter[status]=active&
sort=-createdAt,name&
page=2&
perPage=50&
include=category,variants
HTTP Status Codes
| Code | Usage |
|---|---|
| 200 | Success (GET, PATCH, PUT, DELETE) |
| 201 | Created (POST) |
| 204 | No Content (successful DELETE with no body) |
| 400 | Validation Error |
| 401 | Unauthorized (missing/invalid auth) |
| 403 | Forbidden (insufficient permissions) |
| 404 | Not Found |
| 409 | Conflict (duplicate, version mismatch) |
| 422 | Unprocessable Entity (business rule violation) |
| 429 | Too Many Requests (rate limiting) |
| 500 | Internal Server Error |
What ships with it
1 file 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.
- 9d ago First seen · 165 lines · 34 tokens per session scan A 243161542b4e
api-design is a skill published in the GitHub repository Omar-Obando/qwen-orchestrator (49 stars, last pushed 2mo ago), licensed MIT. It adds 34 tokens to every session and 1,122 once invoked, about $0.0002 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.
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