> 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-session01-graph-data-contracts-seed-fixtures/implementation-notes.md). # Implementation Notes **Session ID**: `phase26-session01-graph-data-contracts-seed-fixtures` **Started**: 2026-06-09 13:06 **Last Updated**: 2026-06-09 13:26 *** ## Session Progress | Metric | Value | | ------------------- | -------- | | Tasks Completed | 20 / 20 | | Estimated Remaining | Complete | | Blockers | 0 | *** ## Task Log ### Task T020 - Validate ASCII encoding, Unix LF endings, and JSON parse compatibility **Started**: 2026-06-09 13:25 **Completed**: 2026-06-09 13:26 **Duration**: 1 minute **Notes**: * Ran `rg --pcre2 -n "[^\\x00-\\x7F]"` on new contract, demo, test, graph data, and session files; result: no matches. * Ran `rg -n "\r"` on the same files; result: no matches. * Ran `jq empty src/data/graphs/index.json src/data/graphs/ai-os.json`; result: passed. **Files Changed**: * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T020 complete and checked completion checklist. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded final artifact checks. **BQC Fixes**: * Contract alignment: JSON artifacts parse cleanly for later seed read paths. * Error information boundaries: Final ASCII scan found no non-ASCII characters in new public artifacts. *** ### Task T019 - Run focused Vitest and TypeScript verification **Started**: 2026-06-09 13:24 **Completed**: 2026-06-09 13:25 **Duration**: 1 minute **Notes**: * Ran `bunx prettier --write` on the new/changed contract, demo, test, data, and session files before verification. * Ran `bun run test -- src/lib/__tests__/knowledge-graph-types.test.ts`; result: 1 test file passed, 9 tests passed. * Ran `bun run typecheck`; result: passed. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Formatted after implementation. * `src/lib/__tests__/knowledge-graph-types.test.ts` - Formatted after test additions. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T019 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded verification results. **BQC Fixes**: * Contract alignment: Focused tests and TypeScript verification passed for the new public contract surface. *** ### Task T018 - Write normalization, metadata, duplicate-id, and savings estimate tests **Started**: 2026-06-09 13:23 **Completed**: 2026-06-09 13:24 **Duration**: 1 minute **Notes**: * Added partial legacy graph normalization tests for `name`, `kind`, force-graph object endpoints, default confidence, and derived metadata. * Added duplicate node id rejection coverage. * Added deterministic metadata and god-node summary tests. * Added savings estimate math and bounded numeric output tests. **Files Changed**: * `src/lib/__tests__/knowledge-graph-types.test.ts` - Added normalization, metadata, duplicate-id, and savings estimate tests. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T018 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * State freshness on re-entry: Normalization tests verify a fresh parsed graph with derived metadata. * Contract alignment: Force-graph object endpoints normalize to ids. * Failure path completeness: Duplicate ids and invalid savings input are covered by tests. *** ### Task T017 - Write malformed graph and malformed registry rejection tests **Started**: 2026-06-09 13:22 **Completed**: 2026-06-09 13:23 **Duration**: 1 minute **Notes**: * Added malformed graph tests for non-object payloads, missing arrays, bad node ids, missing link targets, and invalid confidence values. * Added malformed registry tests for non-array registries, bad ids, bad colors, negative counts, out-of-range extracted percentages, unsafe graph paths, and bad god-node degrees. **Files Changed**: * `src/lib/__tests__/knowledge-graph-types.test.ts` - Added fail-closed parser tests. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T017 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Failure path completeness: Tests assert malformed inputs fail instead of silently normalizing unsafe data. * Trust boundary enforcement: Tests cover graph and registry boundary rejection. *** ### Task T016 - Write valid minimal, seed registry, seed graph, and demo fixture parse tests **Started**: 2026-06-09 13:21 **Completed**: 2026-06-09 13:22 **Duration**: 1 minute **Notes**: * Added initial focused Vitest coverage for valid minimal graph parsing. * Added checked-in seed registry and seed graph parse coverage. * Added demo fixture parse coverage through the public grouped export. **Files Changed**: * `src/lib/__tests__/knowledge-graph-types.test.ts` - Added valid parse contract tests. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T016 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Contract alignment: Tests compare seed graph derived metadata to registry counts. *** ### Task T015 - Review and finalize public parser/type exports **Started**: 2026-06-09 13:20 **Completed**: 2026-06-09 13:21 **Duration**: 1 minute **Notes**: * Reviewed exported contract surface with `rg`. * Added `isKnowledgeGraphParseError()` for bridge/UI error mapping. * Exposed `parseKnowledgeGraphRegistryEntry()` for consumers that need single-entry validation. * Noted `src/lib/knowledge-graph-types.ts` is larger than the estimate but remains one cohesive contract/parser module as specified; split only if later sessions add bridge, renderer, or UI responsibilities to it. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Added parse-error type guard and public single registry entry parser. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T015 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Failure path completeness: Consumers can detect `KnowledgeGraphParseError` explicitly. * Contract alignment: Public parser exports now cover full graph, registry, and single-entry registry consumers. ## Design Decisions ### Decision 1: Keep contract parsing in one module for Session 01 **Context**: `src/lib/knowledge-graph-types.ts` is larger than the original line estimate after adding types, parser helpers, graph parsing, registry parsing, metadata helpers, and savings helpers. **Options Considered**: 1. Keep one cohesive module matching the session deliverable - simple imports and no extra ownership boundary. 2. Split private helpers into another file immediately - shorter files, but adds a module not requested by the spec and creates premature surface area. **Chosen**: Keep one cohesive module for this session. **Rationale**: The file still owns a single responsibility: typed Knowledge Graph contracts and boundary parsing. Later sessions should split helpers only if bridge, renderer, hook, or UI responsibilities start entering this module. *** ### Task T014 - Wire demo fixture exports through the public parsers **Started**: 2026-06-09 13:19 **Completed**: 2026-06-09 13:20 **Duration**: 1 minute **Notes**: * Added `KNOWLEDGE_GRAPH_DEMO_FIXTURES` as a grouped public export containing only parsed demo values. * Existing demo graph and registry exports continue to parse at module load, so malformed demo payloads fail during import/test. **Files Changed**: * `src/lib/knowledge-graph-demo-data.ts` - Added grouped parsed demo fixture export. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T014 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Trust boundary enforcement: Public demo exports expose parsed contract values instead of raw payloads. * Contract alignment: Fixture bundle keeps graph, registry, and savings data on the same public contract surface. *** ### Task T013 - Create the checked-in AI OS self-graph seed in graphify NetworkX node-link shape **Started**: 2026-06-09 13:17 **Completed**: 2026-06-09 13:19 **Duration**: 2 minutes **Notes**: * Added `src/data/graphs/ai-os.json` with graphify-compatible top-level `directed`, `multigraph`, `graph`, `hyperedges`, `nodes`, and `links` fields. * Seed graph contains 17 AI OS nodes, 25 links, 5 communities, and 80 percent extracted links matching the registry. * Source references are workspace-relative and browser-safe. **Files Changed**: * `src/data/graphs/ai-os.json` - Added bundled AI OS self-graph seed. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T013 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Contract alignment: Seed graph follows graphify node-link shape consumed by `parseKnowledgeGraph()`. * Error information boundaries: Seed source references avoid private absolute paths. *** ### Task T012 - Create the checked-in AI OS seed registry with workspace-relative graphPath and parse-ready counts **Started**: 2026-06-09 13:16 **Completed**: 2026-06-09 13:17 **Duration**: 1 minute **Notes**: * Added the bundled AI OS seed registry with one `ai-os` entry. * Registry uses workspace-relative `src/data/graphs/ai-os.json`. * Counts, extracted percentage, god nodes, color, and bundled-seed provenance are parse-ready and browser-safe. **Files Changed**: * `src/data/graphs/index.json` - Added checked-in AI OS seed registry. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T012 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Error information boundaries: Registry path is relative and contains no private absolute filesystem path. * Contract alignment: Registry fields match `parseKnowledgeGraphRegistry()` requirements. *** ### Task T011 - Create parser-backed demo graph and registry fixtures with explicit demo provenance labels **Started**: 2026-06-09 13:15 **Completed**: 2026-06-09 13:16 **Duration**: 1 minute **Notes**: * Added demo-only graph, registry, notice, and savings exports. * Kept raw demo payloads internal and exported parsed values through `parseKnowledgeGraph()`, `parseKnowledgeGraphRegistry()`, and `estimateKnowledgeGraphSavings()`. * Registry provenance is explicitly labeled as `demo-fixture`. **Files Changed**: * `src/lib/knowledge-graph-demo-data.ts` - Added parser-backed demo Knowledge Graph fixtures. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T011 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Trust boundary enforcement: Demo fixtures parse at module load before export. * Contract alignment: Demo registry counts and god nodes derive from the parsed demo graph. * Error information boundaries: Demo notice makes the offline provenance explicit and avoids private file claims. *** ### Task T010 - Implement graph metadata and savings estimate helpers **Started**: 2026-06-09 13:13 **Completed**: 2026-06-09 13:15 **Duration**: 2 minutes **Notes**: * Added `createKnowledgeGraphMetadata()` for derived graph metadata. * Added `getKnowledgeGraphGodNodes()` with deterministic degree, name, and id ordering. * Added `estimateKnowledgeGraphSavings()` with validated counts, bounded defaults, capped numeric output, deterministic rounding, and token/cost savings estimates. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Added metadata, god-node, and savings helpers. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T010 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Contract alignment: God-node ranking uses stable ordering for consistent registry output. * Trust boundary enforcement: Savings input is validated before numeric math. * Failure path completeness: Bad savings counts or numeric fields throw `KnowledgeGraphParseError`. *** ### Task T009 - Implement legacy/partial graph normalization with required-field rejection and bounded optional defaults **Started**: 2026-06-09 13:12 **Completed**: 2026-06-09 13:13 **Duration**: 1 minute **Notes**: * Added public `normalizeKnowledgeGraph()` as the parser-backed normalization entry point. * Added safe legacy aliases for optional node labels (`name`) and link relation names (`kind`). * Required top-level `nodes` and `links` arrays, node ids, and link endpoints still reject when malformed. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Added explicit normalization entry point and optional legacy aliases. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T009 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * State freshness on re-entry: Normalization derives a new typed graph for each parse call instead of reusing mutable source payloads. * Contract alignment: Optional legacy aliases normalize into the graphify node-link contract. *** ### Task T008 - Implement registry parser for entries, colors, counts, god nodes, and graph paths **Started**: 2026-06-09 13:12 **Completed**: 2026-06-09 13:12 **Duration**: 1 minute **Notes**: * Added `parseKnowledgeGraphRegistry()` with duplicate registry id rejection. * Added registry entry, provenance, and god-node parsers. * Registry ids, hex colors, non-negative integer counts, bounded extracted percentages, and workspace-relative `src/data/graphs/*.json` paths are validated. * Missing provenance defaults to a bundled-seed provenance object for legacy seed compatibility. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Added registry parsing and validation. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T008 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Trust boundary enforcement: Registry data is validated before typed use. * Failure path completeness: Bad registry ids, colors, counts, paths, and god nodes throw `KnowledgeGraphParseError`. * Error information boundaries: Path validation errors name the required relative pattern without resolving private filesystem paths. *** ### Task T007 - Implement graph parser for nodes, links, duplicate ids, confidence, and optional metadata **Started**: 2026-06-09 13:10 **Completed**: 2026-06-09 13:12 **Duration**: 2 minutes **Notes**: * Added `parseKnowledgeGraph()` and private node/link/metadata parsers. * Required top-level `nodes` and `links` arrays are rejected when missing or malformed. * Duplicate node ids, invalid link endpoints, links to missing nodes, and invalid confidence values now fail with explicit parse errors. * Optional node/link fields receive bounded defaults, and graph metadata counts are derived from parsed graph data. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Added graph parsing and normalization at the graph boundary. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T007 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Trust boundary enforcement: Graph payloads are validated before returning typed data. * Contract alignment: Link endpoints must normalize to ids and reference known nodes. * Failure path completeness: Invalid graph structures throw `KnowledgeGraphParseError` with stable codes and contexts. *** ### Task T006 - Implement shared parser helpers and a dedicated parse error **Started**: 2026-06-09 13:09 **Completed**: 2026-06-09 13:10 **Duration**: 1 minute **Notes**: * Added `KnowledgeGraphParseError` with stable error `code` and `context` fields for later bridge/UI mapping. * Added shared record, array, primitive, count, percent, confidence, provenance, node id, link endpoint, color, graph path, and clamp helpers. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Added validation helpers and dedicated parse error. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T006 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Trust boundary enforcement: All future parser entry points now have reusable schema-validated readers. * Error information boundaries: Parse failures expose stable messages, codes, and contexts without internal paths or stack data. *** ### Task T005 - Define registry entry, god-node, demo provenance, and savings estimate types **Started**: 2026-06-09 13:08 **Completed**: 2026-06-09 13:09 **Duration**: 1 minute **Notes**: * Added registry entry, registry array, god-node, provenance, and savings estimate interfaces. * Added provenance literals and an exhaustive label map for bundled seed, demo fixture, and live graphify data. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Added registry, provenance, god-node, and savings estimate types. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T005 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Contract alignment: Provenance labels are checked against the provenance union with `satisfies Record`. *** ### Task T004 - Define graph node, link, graph metadata, and confidence types **Started**: 2026-06-09 13:07 **Completed**: 2026-06-09 13:08 **Duration**: 1 minute **Notes**: * Added `KnowledgeGraphConfidence`, node, link, graph metadata, endpoint, and normalized graph interfaces. * Added an exhaustive `KNOWLEDGE_GRAPH_CONFIDENCE_LABELS` record tied to the confidence union. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Added core graph contract types. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T004 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Contract alignment: Confidence labels are checked against the confidence union with `satisfies Record`. *** ### Task T003 - Capture graphify wire-shape assumptions in the contract module before parser implementation **Started**: 2026-06-09 13:06 **Completed**: 2026-06-09 13:07 **Duration**: 1 minute **Notes**: * Added the `src/lib/knowledge-graph-types.ts` module with a boundary-contract comment covering required node-link arrays, string ids, supported force-graph runtime link normalization, bounded confidences, optional metadata defaults, and registry path scope. * Added the exported confidence literal source without implementing parsers yet. **Files Changed**: * `src/lib/knowledge-graph-types.ts` - Created module and recorded graphify wire-shape assumptions. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T003 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * Trust boundary enforcement: Captured the required boundary assumptions before parser implementation (`src/lib/knowledge-graph-types.ts`). *** ### Task T002 - Create Knowledge Graph seed data directory for checked-in registry and graph files **Started**: 2026-06-09 13:06 **Completed**: 2026-06-09 13:06 **Duration**: 1 minute **Notes**: * Created and verified `src/data/graphs/` for the checked-in registry and seed graph artifacts. **Files Changed**: * `src/data/graphs/` - Created Knowledge Graph seed data directory. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T002 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Recorded task completion. **BQC Fixes**: * N/A - directory setup task. *** ### Task T001 - Verify Phase 25 completion, reference graph availability, and local parser/test patterns **Started**: 2026-06-09 13:04 **Completed**: 2026-06-09 13:06 **Duration**: 2 minutes **Notes**: * Confirmed `phase25-session09-documentation-validation-release` is listed in `.spec_system/state.json` completed sessions. * Confirmed reference graph registry and seed graph are present under `/home/aiwithapex/projects/claudeos/claude-os-v2.4/src/data/graphs/`. * Reviewed local parser and test style in `src/lib/hermes-types.ts`, `src/lib/hermes-admin-types.ts`, and `src/lib/__tests__/hermes-types.test.ts`. * Verified TypeScript and Vitest are available through `bun run tsc --version` and `bun run vitest --version`; the spec tool's global command check does not reflect project-local Bun scripts. **Files Changed**: * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/tasks.md` - Marked T001 complete and updated progress. * `.spec_system/specs/phase26-session01-graph-data-contracts-seed-fixtures/implementation-notes.md` - Created session progress log and recorded setup verification. **BQC Fixes**: * N/A - verification-only task. *** ### 2026-06-09 - Session Start **Environment verified**: * [x] Prerequisites confirmed * [x] Tools available through project scripts * [x] Directory structure ready *** --- # Agent Instructions This documentation is published with GitBook. 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