Ruby on Rails Skills MCP
It is a curated library of **42 public Rails agent skills** and **5 callable workflows** that teach AI tools how to plan, test, implement, document, and review Rails work using production-minded conventions.
The project is built around one non-negotiable rule:
```text
Write test -> run test -> verify it fails for the right reason -> implement -> verify it passes
```
That TDD gate is encoded directly into the skills and workflows, so agents do not just produce plausible Rails code. They follow a repeatable engineering process.
SpecLock - AI Constraint Engine
AI Constraint Engine with AI Patch Firewall. 42 MCP tools. Patch Gateway (ALLOW/WARN/BLOCK verdicts), diff-native review (10 scored signals, hard escalation rules), Spec Compiler, Code Graph, Typed constraints, Python SDK, ROS2. Works with Claude Code, Cursor, Windsurf, Cline, Bolt.new, Lovable. 1073 tests. Free and open source. By Sandeep Roy.