---
cluster: grid-viz
block: 01
subsystem: tooling
requires:
  - block: none
    provides: "Initial block"
provides:
  - "Terminal visualization tool for Grid state"
  - "Colorful CLI output with progress bars and status"
  - "Scratchpad, blockers, and learnings display"
affects:
  - Future Grid monitoring and debugging workflows
tech-stack:
  added: [chalk@4.1.2, Node.js CLI]
  patterns: [markdown parsing, terminal visualization, ANSI colors]
key-files:
  created:
    - tools/grid-viz/grid-viz.js
    - tools/grid-viz/package.json
    - tools/grid-viz/README.md
    - tools/grid-viz/package-lock.json
  modified: []
commits: [210b17a, 13407a9, 8e3313b]

# WARMTH - knowledge that survives to next Program
lessons_learned:
  codebase_patterns:
    - "Grid state lives in .grid/ directory at project root"
    - "STATE.md uses markdown with ## headings and **Label:** format"
    - "Scratchpad entries use ### for entry headers"
    - "LEARNINGS.md, BLOCKERS.md, DECISIONS.md use bullet lists"
  gotchas:
    - "chalk ^4.1.2 is CommonJS compatible; v5+ is ESM only"
    - "Node.js scripts need #!/usr/bin/env node shebang"
    - "chmod +x required for executable scripts"
  user_preferences:
    - "User prefers ANSI art and terminal aesthetics (Grid theme)"
    - "Clean output with visual hierarchy (colors, spacing)"
    - "'End of Line.' footer matches Grid lore"
  almost_did:
    - "Considered using chalk v5, chose v4 for CommonJS compatibility"
    - "Almost used JSON for state, but Grid uses markdown"
  fragile_areas:
    - "Markdown parsing is basic - assumes specific formatting"
    - "Progress percentage extraction uses regex - brittle if format changes"
---

# Block 01: grid-viz Terminal Visualization Summary

**One-liner:** Terminal visualization tool displaying Grid state with colorful CLI output, progress bars, and scratchpad entries using chalk@4.1.2

## Tasks Completed

| Thread | Name | Commit | Files |
|--------|------|--------|-------|
| 1 | Create grid-viz.js | 210b17a | grid-viz.js (248 lines) |
| 2 | Create package.json and README | 13407a9 | package.json, README.md |
| 3 | Test and install dependencies | 8e3313b | node_modules/, package-lock.json |

## Deviations from Plan

None - plan executed exactly as written.

## Decisions Made

**1. Use chalk v4.1.2 instead of v5+**
- Rationale: v4 uses CommonJS (require), v5+ is ESM-only
- Grid tooling expects traditional Node.js scripts
- Better compatibility with existing tools

**2. Auto-discover .grid directory**
- Rationale: User can run from anywhere in project tree
- Searches current directory and parents
- More convenient than requiring exact path

**3. Graceful degradation for missing files**
- Rationale: Not all .grid files exist in every project
- Tool should show what's available
- Better UX than failing on missing files

**4. Parse markdown instead of JSON**
- Rationale: Grid uses markdown for human readability
- STATE.md, SCRATCHPAD.md are markdown format
- Simple regex/string parsing sufficient

## Next Block Readiness

Tool is ready for integration into Grid CLI if desired. Potential enhancements:
- Add watch mode (--watch flag for live updates)
- Export JSON format for programmatic use
- Add filtering options (--blockers-only, --scratchpad-only)
- Integration with grid status command

No blockers for future work.