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Language-Aware Bootstrap for Claude Code

C65 LLC

The setup script now detects your project’s languages and generates a tailored Claude Code settings.json — no manual configuration needed.

How It Works

Section titled “How It Works”

When you run setup.sh, the bootstrap system:

  1. Scans your project for language markers — *.py, Gemfile, package.json, Cargo.toml, *.swift, etc.
  2. Maps languages to tools — Python projects get ruff, pytest, mypy; Ruby projects get rubocop, rspec, brakeman; TypeScript gets eslint, vitest, tsc.
  3. Generates settings.json with the appropriate allowedTools configuration for Claude Code.

The result: Claude Code can run your project’s linters, test runners, and formatters without you having to manually allowlist each tool.

Template-Driven

Section titled “Template-Driven”

The generation uses a base template with language-specific tool blocks injected dynamically. This means the core settings (permissions, MCP servers, etc.) stay consistent while tool access adapts to the project.

CI Test Infrastructure

Section titled “CI Test Infrastructure”

We added functional tests that validate the bootstrap pipeline:

  • Language detection tests — verify that each file type maps to the correct language
  • Settings generation tests — confirm the output JSON is valid and contains expected tool entries
  • Round-trip tests — run setup on mock projects and validate the generated config

These run in CI on every PR that touches the setup scripts.

Try It

Section titled “Try It”

Update your standards submodule and re-run setup:

Terminal window
cd .standards && git pull origin main && cd ..
make setup

Your settings.json will be regenerated with language-appropriate tooling.