A set of conventions for building REST APIs in Python with FastAPI, a framework for creating web services. It covers routes, dependency injection, response models, pagination, errors, and asynchronous code.

Implementing FastAPI route handlers, dependencies, response formats, pagination, error handling, and async operations.

It gives projects consistent patterns for common API tasks and helps avoid design differences between endpoints.

How CATS70/dolibarr-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to CATS70/dolibarr-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/CATS70/dolibarr-mcp/main/.claude/skills/fastapi/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/CATS70/dolibarr-mcp

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/cats70/dolibarr-mcp/fastapi.svg)](https://agentmods.dev/skills/cats70/dolibarr-mcp/fastapi)

Your own site

<a href="https://agentmods.dev/skills/cats70/dolibarr-mcp/fastapi"><img src="https://agentmods.dev/badge/skills/cats70/dolibarr-mcp/fastapi.svg" alt="Measured on agentmods" height="20"></a>

Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,061 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Token cost

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	$0.00033	$0.02061
Opus 5	$0.00016	$0.01030
Sonnet 5	$0.00007	$0.00412
Haiku 4.5	$0.00003	$0.00206

Measured 5d ago against content hash 4aa3b3998ff2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

fastapi 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 5d 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.

.claude/skills/fastapi/SKILL.md · 276 lines

The source is not reproduced here

No licence file

Read it on GitHub

Changes

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.

5d ago First seen · 276 lines · 33 tokens per session scan A 4aa3b3998ff2

Subscribe to this mod's changes

fastapi is a skill published in the GitHub repository CATS70/dolibarr-mcp (0 stars, last pushed 11d ago), with no licence file. It adds 33 tokens to every session and 2,061 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 2026-08-31.

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dolibarr-mcp: Skill for Claude Code