Run the stats command and present the output:
meridian stats
If --json output is needed for downstream processing:
meridian --json stats
The output covers:
- Progress: phase and plan completion bars with percentages
- Milestones: per-milestone status and phase counts
- Velocity: plans completed per day (rolling 7-day window)
- Git: commit count, total insertions/deletions, file count, last commit date
- Tests: test file count and test function count
- Timeline: project start date and age in days
If the project has no .meridian/state.db, instruct the user to run meridian init first.