The Observatory is a full-bleed, zero-library WebGPU surface that renders
the memory graph as a living cognitive field. Five deterministic demo
moments driven by a URL contract (?demo=<name>&seed=...&frame=N):
recall-path, engram-birth, salience-rescue, forgetting-horizon, firewall.
Capture mode (?frame=N) freezes the sim deterministically so the same URL
produces identical pixels, the viral-clip primitive.
Architecture: bare-metal WebGPU engine (no Three.js), seeded demo clock,
per-demo plan + renderer modules, WGSL shaders (simulate, nodes, edges,
path, birth particles, rescue, forgetting, firewall) plus a post-processing
chain (tone mapping, MIP). DOM is instrument overlays only (telemetry strip,
timeline spine, rescue verdict); the layout gives /observatory the same
full-bleed bypass as marketing routes so recordings stay clean.
Reads the real memory graph. Verified live: svelte-check 939 files 0 errors,
96 observatory unit tests green, all 5 demos load at 108-119fps with zero
console errors against the live brain.
Known follow-up: engram-birth capture-mode particle cluster needs a render
fix pass before it is camera-ready; the other 4 demos are camera-ready.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
When memories are created, promoted, deleted, or dreamed via MCP tools,
the 3D graph now shows spectacular live animations:
- Rainbow particle burst + elastic scale-up on MemoryCreated
- Ripple wave cascading to nearby nodes
- Green pulse + node growth on MemoryPromoted
- Implosion + dissolution on MemoryDeleted
- Edge growth animation on ConnectionDiscovered
- Purple cascade on DreamStarted/DreamProgress/DreamCompleted
- FIFO eviction at 50 live nodes to guard performance
Also: graph center defaults to most-connected node, legacy HTML
redirects to SvelteKit dashboard, CSS height chain fix in layout.
Testing: 150 unit tests (vitest), 11 e2e tests (Playwright with
MCP Streamable HTTP client), 22 proof screenshots.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
