claude-cairn-builder

Build an app_spec.xml from scratch through Socratic Q&A. Use BEFORE /build-app when there is no app_spec.xml yet, or when the operator asks "help me write a spec", "scaffold my project spec", or "set up app_spec.xml". Walks the operator through templates/spec-template.xml section by section, asks 1–3 targeted questions per section, skips inapplicable sections, and writes the final app_spec.xml.

Amend app_spec.xml mid-build for scope changes without breaking the "features only flip false→true" invariant. Use when the operator says "also add X", "drop feature Y", "we need a nightly batch job for Z", or otherwise wants to change scope after the build has started. Edits app_spec.xml in place AND appends new features to feature_list.json (existing entries are never modified).