> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase26-session05-read-hook-route-shell-project-gallery/implementation_summary.md). # Implementation Summary **Session ID**: `phase26-session05-read-hook-route-shell-project-gallery` **Completed**: 2026-06-09 **Duration**: 3-4 hours *** ## Overview Implemented the first operator-facing AI OS Knowledge Graph route. The new surface reads the graph registry and active graph through typed parser-backed React Query hooks, falls back to bundled seed or demo data for empty, offline, and failed reads, and renders a dense `/knowledge-graph` cockpit with hero, project gallery, lazy 3D renderer panel, side rail, and sidebar navigation. *** ## Deliverables ### Files Created | File | Purpose | | ------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------- | | `src/hooks/use-knowledge-graph.ts` | Typed read hook with polling, active graph loading, fallback states, derived stats, and Hermes status projection. | | `src/hooks/__tests__/use-knowledge-graph.test.tsx` | Hook coverage for loaded, empty, offline, error, malformed payload, selection reset, polling, and Hermes status. | | `src/routes/knowledge-graph.tsx` | Thin TanStack route with metadata and page adapter mount. | | `src/components/knowledge-graph/knowledge-graph-page.tsx` | Page adapter composing hero, gallery, panel, and side rail. | | `src/components/knowledge-graph/knowledge-graph-hero.tsx` | Wired hero header using `thinker.webp` and scoped KG animation classes. | | `src/components/knowledge-graph/knowledge-graph-project-gallery.tsx` | Scrollable keyboard-accessible project gallery. | | `src/components/knowledge-graph/knowledge-graph-panel.tsx` | Lazy 3D renderer mount with explicit state shells. | | `src/components/knowledge-graph/knowledge-graph-side-rail.tsx` | Stats, confidence, important files, savings, provenance, Hermes status, and selected-node details. | | `src/components/knowledge-graph/__tests__/knowledge-graph-page.test.tsx` | Page/component coverage with mocked hook and renderer. | | `src/routes/__tests__/knowledge-graph.test.tsx` | Route metadata and render coverage. | | `src/assets/hermes-art/knowledge-graph/thinker.webp` | Knowledge Graph hero asset copied from upstream reference. | ### Files Modified | File | Changes | | ---------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------- | | `src/components/app-sidebar.tsx` | Added "Knowledge Graph" host cockpit nav entry with `Waypoints`. | | `src/components/__tests__/app-sidebar.test.tsx` | Added nav entry, active state, and mobile-close coverage. | | `src/routes/__tests__/route-tree.test.ts` | Added `/knowledge-graph` generated route expectations. | | `src/routeTree.gen.ts` | Regenerated through TanStack Start/Vite tooling. | | `src/styles.css` | Added scoped `kg-*` hero animations and reduced-motion rules. | | `.spec_system/specs/phase26-session05-read-hook-route-shell-project-gallery/tasks.md` | Marked all implementation tasks complete. | | `.spec_system/specs/phase26-session05-read-hook-route-shell-project-gallery/implementation-notes.md` | Recorded implementation log and verification results. | *** ## Technical Decisions 1. **Hook owns fallback state**: The page never renders from unparsed bridge data. Empty, offline, failed, malformed, and demo states are normalized in `useKnowledgeGraph`. 2. **Route stays thin**: `/knowledge-graph` only declares metadata and mounts the page adapter. 3. **3D vendor stack remains deferred**: The panel lazy-loads the Session 04 renderer, and the renderer keeps `react-force-graph-3d` and `three` behind dynamic imports. 4. **Sidebar uses existing route-change close behavior**: The new nav entry follows the same host cockpit link pattern as the existing primary nav. *** ## Test Results | Check | Result | | ------------------------ | --------------------------------------------- | | Focused tests | 5 files, 47 tests passed | | Typecheck | `bun run typecheck` passed | | Targeted ESLint | Passed | | Build route verification | `bun run build:dev` passed | | ASCII scan | Passed for Session 05 text files | | New asset size | `thinker.webp` is 179,002 bytes, under 200 KB | Note: the repository-wide `scripts/check-asset-sizes.sh` still reports pre-existing oversized assets unrelated to this session. The new Knowledge Graph asset is within policy. *** ## Session Statistics * **Tasks**: 20 completed * **Files Created**: 12 * **Files Modified**: 7 * **Tests Added**: 3 focused test files plus updates to route-tree/sidebar tests * **Blockers**: 0 *** ## Next Step Run the `validate` workflow step to verify session completeness. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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