The diff command added unnecessary complexity and duplicated functionality
already available through the show command. Users can now use:
- `openspec show <change>` for structured change viewing
- `openspec show <change> --json --deltas-only` for delta-only views
- Standard git diff or other tools for file comparisons
This change:
- Removes ~227 lines of code and the jest-diff dependency
- Simplifies the CLI interface
- Reduces maintenance burden
- Aligns with verb-first command structure
- Restructured README.md with three-stage workflow front-loaded
- Reduced from 575 to 298 lines while adding comprehensive content
- Added clear decision trees and removed ambiguous conditions
- Documented all CLI commands with examples and debugging tips
- Added critical scenario formatting guidance (most common error)
- Created troubleshooting section with error solutions
- Updated CLAUDE.md template with streamlined, focused content
- Added "Before Any Task" checklist for context gathering
- Added spec discovery workflow to prevent duplicates
- Included tool selection matrix and best practices
- Update openspec-conventions spec with delta-based approach
- Add Header-Based Requirement Identification for programmatic matching
- Define ADDED/MODIFIED/REMOVED/RENAMED sections format
- Document standard output symbols (+ ~ - →)
- Update openspec/README.md with delta conventions and examples
- Update init command template to use delta format
- Mark completed tasks in adopt-delta-based-changes/tasks.md
This implements the first part of the delta-based changes proposal,
updating all documentation and conventions to support the new format.