Probity

Quick start

npm install -D @nizos/probity

Create probity.config.ts at your project root:

import {
  defineConfig,
  enforceTdd,
  forbidCommandPattern,
  forbidContentPattern,
} from '@nizos/probity'

export default defineConfig({
  rules: [
    forbidCommandPattern({
      match: /rm\s+-rf/,
      reason: '`rm -rf` is too broad; remove specific paths instead.',
    }),
    {
      files: ['src/**', 'test/**'],
      rules: [
        enforceTdd(),
        forbidContentPattern({
          match: 'eslint-disable',
          reason: 'Fix the lint violation rather than disabling the rule.',
        }),
      ],
    },
  ],
})

Then wire it into your agent. One-time setup per agent.

FAQ

Does it work with my agent? Probity currently works with Claude Code, Codex, and GitHub Copilot CLI, with more coming.

Does it work with my language? Probity reads each agent's session transcript directly, so there are no per-framework reporters to install. It works with any language and test runner that your agent can work with.

Does Probity need its own API key or subscription? No. AI-validated rules use each vendor's official SDK and reuse whatever authentication your agent already has, so Probity doesn't require its own access or billing.

I'm already using TDD Guard. Should I switch? Probity's TDD validation reads the session transcript, which lets it handle refactors and multi-step edits more reliably. It also supports more agents and is safe with parallel sessions. The one gap: TDD Guard has a lint integration that Probity doesn't yet match.