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 agentmods add skills/packtpublishing/the-claude-code-operating-model/api-generatingnpx skills add PacktPublishing/The-Claude-Code-Operating-Model --skill api-generatinggit clone --depth 1 https://github.com/PacktPublishing/The-Claude-Code-Operating-ModelWhat 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 | $0.00037 | $0.00332 |
| Opus 5 | $0.00018 | $0.00166 |
| Sonnet 5 | $0.00007 | $0.00066 |
| Haiku 4.5 | $0.00004 | $0.00033 |
Grade A, and why
api-generating 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 2d 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.
This is a copy
100% identical to api-generating — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
API Endpoint Generator
Generate REST API endpoints following the project's established patterns.
Before Generating
- Read existing route files to understand the project's patterns
- Check for validation library usage (Zod, Joi, etc.)
- Identify the architecture pattern (layered, MVC, etc.)
Generation Template
For each new resource, create:
-
Route file (
src/routes/{resource}.ts)- Zod validation schemas
- Route handlers that parse and delegate
- NO business logic in routes
-
Service file (
src/services/{resource}Service.ts)- Business rules and validation
- Orchestration of repo calls
- Domain error throwing
-
Repo file (
src/repos/{resource}Repo.ts)- Data access only
- Prisma operations
- NO business logic
-
Test file (
tests/{resource}.test.ts)- Happy path tests
- Edge case tests
- Error handling tests
Naming Conventions
- Files: camelCase (
orderService.ts) - Classes: PascalCase (
OrderService) - Routes: kebab-case (
/api/order-items) - Database: snake_case (handled by Prisma)
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.
- 2d ago First seen · 56 lines · 37 tokens per session scan A 75797ca5d993
api-generating is a skill published in the GitHub repository PacktPublishing/The-Claude-Code-Operating-Model (5 stars, last pushed 25d ago), licensed MIT. It adds 37 tokens to every session and 332 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to api-generating, differing in 0 lines, and is treated as a copy.
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