backend-development-python

backend-development-python is a skill for Claude Code, Codex from aAAaqwq/AGI-Super-Team. It costs 43 tokens per session (406 once invoked), scanned A, original, MIT.

A Python backend development guide covering FastAPI, Django, Flask, data validation, database access, migrations, and browser automation. Python is a programming language; a backend is the server-side code behind an application or API.

In plain words
What is it for?
Building Python APIs and services with FastAPI, Django, or Flask; using Pydantic and SQLModel; managing Alembic migrations; and testing with pytest or Playwright.
Why use it?
It gives a framework and practice reference for building server applications without mixing incompatible approaches. It also addresses input validation, database changes, configuration, and asynchronous code.

Skill for Claude CodeCodex

Part of the agi-super-team plugin — 192 skills, 4 agents shipped together

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.

agentmods
npx agentmods add skills/aaaaqwq/agi-super-team/python
Any agent
npx skills add aAAaqwq/AGI-Super-Team --skill python
Clone the repo
git clone --depth 1 https://github.com/aAAaqwq/AGI-Super-Team

Made for: Claude Code, Codex.

Or install agi-super-team, the plugin that ships this one along with the rest of its 192 skills, 4 agents.

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 backend-development-python

README.md
[![agentmods](https://agentmods.dev/badge/skills/aaaaqwq/agi-super-team/python.svg)](https://agentmods.dev/skills/aaaaqwq/agi-super-team/python)
Your own site
<a href="https://agentmods.dev/skills/aaaaqwq/agi-super-team/python"><img src="https://agentmods.dev/badge/skills/aaaaqwq/agi-super-team/python.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 406 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00043 $0.00406
Opus 5 $0.00022 $0.00203
Sonnet 5 $0.00009 $0.00081
Haiku 4.5 $0.00004 $0.00041

Measured today against content hash 1f8fdc0b864e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

backend-development-python 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 today.

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.

skills/backend-development/python/SKILL.md · 48 lines

What it actually says

Python 后端开发专家

当使用此技能

  • 开发现代异步 API (FastAPI)
  • 构建企业级全栈应用 (Django)
  • 创建轻量级微服务 (Flask)
  • 设计数据库 ORM (SQLModel/SQLAlchemy)
  • 数据验证 (Pydantic)
  • 数据库迁移 (Alembic)
  • 浏览器自动化 (Playwright)

框架选择

框架 适用场景
FastAPI 现代 API、异步、自动文档
Django 企业应用、全栈、CMS
Flask 微服务、快速原型

最佳实践

  1. 类型注解: 使用 Python 3.9+ 类型提示
  2. 异步优先: FastAPI 用 async/await
  3. Pydantic 验证: 所有输入/输出用 BaseModel
  4. Alembic 迁移: 数据库变更必须迁移
  5. 环境配置: 使用 pydantic-settings
  6. 测试覆盖: pytest + pytest-asyncio

触发词

  • "开发 Python API"
  • "FastAPI 项目"
  • "Django 应用"
  • "Python 后端"
  • "SQLAlchemy ORM"
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. today First seen · 48 lines · 43 tokens per session scan A 1f8fdc0b864e

Subscribe to this mod's changes

backend-development-python is a skill published in the GitHub repository aAAaqwq/AGI-Super-Team (91 stars, last pushed yesterday), licensed MIT. It adds 43 tokens to every session and 406 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 2026-09-05.

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