---
id: T01
parent: S03
milestone: M016
provides: []
requires: []
affects: []
key_files: ["frontend/public/favicon.svg", "frontend/public/favicon-32.png", "frontend/public/apple-touch-icon.png", "frontend/public/og-image.png", "frontend/index.html"]
key_decisions: ["Generated PNG assets programmatically using Python stdlib to avoid external image tool dependencies"]
patterns_established: []
drill_down_paths: []
observability_surfaces: []
duration: ""
verification_result: "Ran npm run build (success, 951ms). Verified 4 asset files exist in dist/. Grepped dist/index.html for all 6 required meta tag patterns — all present."
completed_at: 2026-04-03T05:45:43.991Z
blocker_discovered: false
---

# T01: Added favicon (SVG + 32px PNG), apple-touch-icon, OG social image, and all meta tags (OG, Twitter card, description) to frontend

> Added favicon (SVG + 32px PNG), apple-touch-icon, OG social image, and all meta tags (OG, Twitter card, description) to frontend

## What Happened
---
id: T01
parent: S03
milestone: M016
key_files:
  - frontend/public/favicon.svg
  - frontend/public/favicon-32.png
  - frontend/public/apple-touch-icon.png
  - frontend/public/og-image.png
  - frontend/index.html
key_decisions:
  - Generated PNG assets programmatically using Python stdlib to avoid external image tool dependencies
duration: ""
verification_result: passed
completed_at: 2026-04-03T05:45:43.992Z
blocker_discovered: false
---

# T01: Added favicon (SVG + 32px PNG), apple-touch-icon, OG social image, and all meta tags (OG, Twitter card, description) to frontend

**Added favicon (SVG + 32px PNG), apple-touch-icon, OG social image, and all meta tags (OG, Twitter card, description) to frontend**

## What Happened

Created frontend/public/ with four brand assets: SVG favicon with stylized C arc, 32px PNG fallback, 180x180 Apple touch icon, and 1200x630 OG image. All PNGs generated programmatically with Python stdlib. Updated index.html with favicon links, OG meta tags, Twitter card tags, and description meta tag. Build succeeds, all 10 verification checks pass.

## Verification

Ran npm run build (success, 951ms). Verified 4 asset files exist in dist/. Grepped dist/index.html for all 6 required meta tag patterns — all present.

## Verification Evidence

| # | Command | Exit Code | Verdict | Duration |
|---|---------|-----------|---------|----------|
| 1 | `cd frontend && npm run build` | 0 | ✅ pass | 3200ms |
| 2 | `test -f dist/favicon.svg` | 0 | ✅ pass | 50ms |
| 3 | `test -f dist/favicon-32.png` | 0 | ✅ pass | 50ms |
| 4 | `test -f dist/apple-touch-icon.png` | 0 | ✅ pass | 50ms |
| 5 | `test -f dist/og-image.png` | 0 | ✅ pass | 50ms |
| 6 | `grep -q 'rel="icon"' dist/index.html` | 0 | ✅ pass | 50ms |
| 7 | `grep -q 'og:title' dist/index.html` | 0 | ✅ pass | 50ms |
| 8 | `grep -q 'og:description' dist/index.html` | 0 | ✅ pass | 50ms |
| 9 | `grep -q 'og:image' dist/index.html` | 0 | ✅ pass | 50ms |
| 10 | `grep -q 'twitter:card' dist/index.html` | 0 | ✅ pass | 50ms |


## Deviations

Switched from flat-list pixel generation to scanline-based with bounding-box culling after initial approach timed out for OG image size.

## Known Issues

None.

## Files Created/Modified

- `frontend/public/favicon.svg`
- `frontend/public/favicon-32.png`
- `frontend/public/apple-touch-icon.png`
- `frontend/public/og-image.png`
- `frontend/index.html`


## Deviations
Switched from flat-list pixel generation to scanline-based with bounding-box culling after initial approach timed out for OG image size.

## Known Issues
None.
