Every loadout here ends a change with pytest. They show the agent what a useful test looks like for the stack: FastAPI routes with dependency overrides, a Django assertNumQueries test that catches N+1 queries, bot logic tested without the network, and eval cases that must link to the trace they came from.
Every one installs for Claude Code, Codex CLI, Cursor, Gemini CLI, Antigravity CLI and GitHub Copilot unless its card says otherwise.
Django rules and a safe-migration skill: migrations checked in CI, two-step destructive changes, N+1 caught with query-count tests, settings from the environment.
Build LLM and agent evals the practitioner way: read real traces first, tally failure categories, then turn each into code-checked regression cases.
Rules and an endpoint skill for FastAPI with uv and Pydantic v2: Annotated dependencies, typed responses, async only when awaited, lifespan, tested routes.
Rules and a command skill for Telegram bots on python-telegram-bot v22: token from the environment, async-safe handlers, testable logic, escaped output, webhook secrets.
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