Add Project Guide

Create a new projects/{stack}/ directory with guide and templates for the language/stack specified in $ARGUMENTS.

Steps

1. Validate: Confirm projects/$ARGUMENTS/ does not already exist. If it does, report and stop.
2. Study existing project guide: Read the contents of one existing project directory (prefer projects/python/ or projects/typescript/) to extract the pattern:
   • guide.md — stack-specific tooling, conventions, common commands, tips
   • CLAUDE.md.template — project instructions template with <!-- CUSTOMIZE --> markers
   • settings.json.template — settings with stack-appropriate permissions and hooks
3. Generate projects/$ARGUMENTS/guide.md:
   • Follow the same structure as the reference guide
   • Include stack-specific: package manager, test runner, linter, formatter, build tool
   • Include common commands and conventions for the stack
   • Add cross-references to relevant core guides
   • Keep under 300 lines
4. Generate projects/$ARGUMENTS/CLAUDE.md.template:
   • Use <!-- CUSTOMIZE --> markers for project-specific values
   • Include stack-appropriate sections: commands, code style, testing conventions
   • Follow the structure from the reference template
5. Generate projects/$ARGUMENTS/settings.json.template:
   • Include stack-appropriate permission patterns (test, lint, format, build commands)
   • Include appropriate hooks (format-on-save using the stack's formatter)
   • All JSON must be valid — no comments, no trailing commas
6. Verify: Re-read all generated files and confirm valid JSON, correct structure, under 300 lines each.