原始内容
specx
Agent skills and executable architecture guardrails for Python services.
Documentation · Quickstart · Rules · Issues
specx gives coding agents a shared architecture for Python backends and checks
that the implementation still follows it. It combines composable agent skills,
typed foundation classes, a project initializer, and rule-based architecture
checks with stable, documented rule IDs.
Highlights
- Agent-ready workflows. Installable skills cover project structure, core behavior, FastAPI delivery, DI, persistence, settings, migrations, and tests.
- Architecture as code.
specx checkcatches layer leaks, incorrect inheritance, hidden transaction ownership, misplaced types, and test drift. - Explicit building blocks. Typed foundation classes give use cases, services, capabilities, controllers, repositories, gateways, and DTOs clear roles.
- A strict starting point.
specx initcreates a small, framework-neutral service with uv, Ruff, mypy, pytest, DI composition, and mirrored tests.
Installation
Install the CLI in an isolated environment with uv:
uv tool install specx
Upgrade it later with uv tool upgrade specx.
The agent skills are installed separately and require Node.js. This example installs the full catalog for Codex:
npx skills add maksimzayats/specx --skill '*' --agent codex -y
See Install agent skills for other agents and installation options.
Quickstart
Create a framework-neutral Python service and run its checks:
$ specx init order-service
$ cd order-service
$ make check
For an existing src/-layout project, add specx as a project dependency:
uv add specx
uv run specx check
Inspect the available guardrails from the command line:
uv run specx rule list
uv run specx rule explain use-cases.return-dtos
Configuration lives in pyproject.toml. See the
configuration reference and
adoption guide
for selectors, exclusions, JSON output, and incremental rollout.
Documentation
Contributing
Contributions are welcome. See the
contributing guide
for local setup and validation. Run make check before opening a pull request.
License
specx is released under the MIT License.