FastAPI高性能API

FastAPI高性能API is a skill for Claude Code, Codex from microwind/ai-skills. It costs 41 tokens per session (8,035 once invoked), scanned A, original, no licence file.

A guide for building APIs with FastAPI, a Python framework for server-side web services.

In plain words
What is it for?
Use it to design FastAPI services, review API architecture, and troubleshoot performance issues.
Why use it?
It helps review routes and asynchronous processing so performance and API architecture problems are easier to address.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to design FastAPI services, review API architecture, and troubleshoot performance issues.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/microwind/ai-skills/fastapi-setup
Install

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.

Any agent
npx skills add microwind/ai-skills --skill fastapi-setup
Clone the repo
git clone --depth 1 https://github.com/microwind/ai-skills

Made for: Claude Code, Codex.

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.

agentmods badge for FastAPI高性能API

README.md
[![agentmods](https://agentmods.dev/badge/skills/microwind/ai-skills/fastapi-setup.svg)](https://agentmods.dev/skills/microwind/ai-skills/fastapi-setup)
Your own site
<a href="https://agentmods.dev/skills/microwind/ai-skills/fastapi-setup"><img src="https://agentmods.dev/badge/skills/microwind/ai-skills/fastapi-setup.svg" alt="Measured on agentmods" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,035 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00041 $0.08035
Opus 5 $0.00020 $0.04018
Sonnet 5 $0.00008 $0.01607
Haiku 4.5 $0.00004 $0.00804

Measured 3d ago against content hash d2e057e5022c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

FastAPI高性能API 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 3d 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.

frameworks/fastapi-setup/SKILL.md · 1,105 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

2 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.

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.

  1. 3d ago First seen · 1,105 lines · 41 tokens per session scan A d2e057e5022c

Subscribe to this mod's changes

FastAPI高性能API is a skill published in the GitHub repository microwind/ai-skills (78 stars, last pushed 3mo ago), with no licence file. It adds 41 tokens to every session and 8,035 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 2026-09-03.

Related

Other skills, from other repositories

python-development

Modern Python development with Python 3.12+, Django, FastAPI, async patterns, and production best practices. Use for Python projects, APIs, data processing, or automation scripts.

saajunaid/caddis-plugin · 40 tokens

fastapi-dev

Build FastAPI backends with standard patterns, error handling, and testing.

saajunaid/caddis-plugin · 18 tokens

fastapi-templates

Create production-ready FastAPI projects with async patterns, dependency injection, and comprehensive error handling. Use when building new FastAPI applications or setting up backend API projects.

wshobson/agents · 37 tokens

fastapi

Use when building, reviewing, testing, securing or shipping a FastAPI / async Python service — routers, Pydantic v2 schemas, dependency injection, async SQLAlchemy 2.0, OAuth2/JWT, ASGITransport tests, production wiring. NOT language-level Python or packaging (that is python), NOT engine-level SQL (that is…

ericrisco/rsc-harness · 94 tokens

django

Use when building, reviewing, securing, testing or shipping a Django app — models, migrations, QuerySets/managers, FBV/CBV views, forms, the admin, settings split, and Django REST Framework (serializers, ModelViewSet, permissions). NOT async FastAPI/Pydantic services (that is fastapi), NOT Postgres schema/index work…

ericrisco/rsc-harness · 84 tokens

python-run

Run and debug Python scripts in the project. Use when the user says "run python", "execute this script", "debug this py file", or wants to run/modify a .py file. Handles dependency checks, linting, execution, and error analysis.

congchuanling-dot/Cohort · 56 tokens