docs(phase-1): complete Foundation & Learning phase

Phase 1 verified: 6/6 must-haves passed.
- INDEX-01 through INDEX-05: Complete
- CONV-06: Complete

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.planning/STATE.md

@@ -9,25 +9,25 @@ See: .planning/PROJECT.md (updated 2026-01-19)
 
 ## Current Position
 
-Phase: 1 of 3 (Foundation & Learning)
+Phase: 2 of 3 (Context Injection)
 Plan: Not started
 Status: Ready to plan
-Last activity: 2026-01-19 — Roadmap created for v1.9.0
+Last activity: 2026-01-20 — Phase 1 verified and complete
 
-Progress: [░░░░░░░░░░] 0%
+Progress: [███░░░░░░░] 33%
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 0
-- Average duration: -
-- Total execution time: 0 min
+- Total plans completed: 2
+- Average duration: 3.5 min
+- Total execution time: 7 min
 
 **By Phase:**
 
 | Phase | Plans | Total | Avg/Plan |
 |-------|-------|-------|----------|
-| 1. Foundation & Learning | 0/2 | - | - |
+| 1. Foundation & Learning | 2/2 | 7 min | 3.5 min |
 | 2. Context Injection | 0/2 | - | - |
 | 3. Brownfield & Integration | 0/3 | - | - |
 
@@ -37,7 +37,14 @@ Progress: [░░░░░░░░░░] 0%
 
 ### Decisions
 
-Key decisions logged in PROJECT.md Key Decisions table.
+| Decision | Phase | Rationale |
+|----------|-------|-----------|
+| index.json keyed by absolute path | 01-01 | O(1) lookup for file entries |
+| JSON schema with version field | 01-01 | Enables future schema migrations |
+| updated=null for initialization | 01-01 | Distinguishes init from update |
+| Use heredoc for stdin testing | 01-02 | Pipe chaining has timing issues with async stdin |
+| Extract 'default' as export name | 01-02 | Both 'default' and identifier recorded for default exports |
+| Read file from disk for Edit tool | 01-02 | Edit only provides old_string/new_string, not full content |
 
 ### Pending Todos
 
@@ -45,10 +52,10 @@ Key decisions logged in PROJECT.md Key Decisions table.
 
 ### Blockers/Concerns
 
-None.
+- `.planning/` is gitignored in GSD repo - intel files created but not committed (expected for project-local data)
 
 ## Session Continuity
 
-Last session: 2026-01-19
-Stopped at: Roadmap created, ready to plan Phase 1
+Last session: 2026-01-20
+Stopped at: Phase 1 verified and complete, ready for Phase 2
 Resume file: None

.planning/milestones/v1.9.0-REQUIREMENTS.md

@@ -4,11 +4,11 @@
 
 ### Indexing (INDEX)
 
-- [ ] **INDEX-01**: PostToolUse hook indexes files after Write/Edit operations
-- [ ] **INDEX-02**: Index tracks file paths, exports, and imports
-- [ ] **INDEX-03**: Index stored in `.planning/intel/index.json`
-- [ ] **INDEX-04**: Hook fails silently on any error (never blocks Claude)
-- [ ] **INDEX-05**: Index updates incrementally (add/modify, not full rebuild)
+- [x] **INDEX-01**: PostToolUse hook indexes files after Write/Edit operations
+- [x] **INDEX-02**: Index tracks file paths, exports, and imports
+- [x] **INDEX-03**: Index stored in `.planning/intel/index.json`
+- [x] **INDEX-04**: Hook fails silently on any error (never blocks Claude)
+- [x] **INDEX-05**: Index updates incrementally (add/modify, not full rebuild)
 
 ### Context Injection (CTX)
 
@@ -25,7 +25,7 @@
 - [ ] **CONV-03**: Detect directory purpose patterns (src/services/, src/components/)
 - [ ] **CONV-04**: Confidence threshold: 5+ files required before pattern is detected
 - [ ] **CONV-05**: Confidence threshold: 70%+ match rate required
-- [ ] **CONV-06**: Conventions stored in `.planning/intel/conventions.json`
+- [x] **CONV-06**: Conventions stored in `.planning/intel/conventions.json`
 
 ### Brownfield Analysis (BROWN)
 
@@ -72,11 +72,11 @@
 
 | Requirement | Phase | Status |
 |-------------|-------|--------|
-| INDEX-01 | Phase 1 | Pending |
-| INDEX-02 | Phase 1 | Pending |
-| INDEX-03 | Phase 1 | Pending |
-| INDEX-04 | Phase 1 | Pending |
-| INDEX-05 | Phase 1 | Pending |
+| INDEX-01 | Phase 1 | Complete |
+| INDEX-02 | Phase 1 | Complete |
+| INDEX-03 | Phase 1 | Complete |
+| INDEX-04 | Phase 1 | Complete |
+| INDEX-05 | Phase 1 | Complete |
 | CTX-01 | Phase 2 | Pending |
 | CTX-02 | Phase 2 | Pending |
 | CTX-03 | Phase 2 | Pending |
@@ -87,7 +87,7 @@
 | CONV-03 | Phase 2 | Pending |
 | CONV-04 | Phase 2 | Pending |
 | CONV-05 | Phase 2 | Pending |
-| CONV-06 | Phase 1 | Pending |
+| CONV-06 | Phase 1 | Complete |
 | BROWN-01 | Phase 3 | Pending |
 | BROWN-02 | Phase 3 | Pending |
 | BROWN-03 | Phase 3 | Pending |

.planning/milestones/v1.9.0-ROADMAP.md

@@ -6,7 +6,7 @@ This milestone delivers a living knowledge system that learns codebase structure
 
 ## Phases
 
-- [ ] **Phase 1: Foundation & Learning** - Index store, PostToolUse hook, file parsing
+- [x] **Phase 1: Foundation & Learning** - Index store, PostToolUse hook, file parsing ✓
 - [ ] **Phase 2: Context Injection** - SessionStart hook, convention detection, summary generation
 - [ ] **Phase 3: Brownfield & Integration** - analyze-codebase command, GSD integration, documentation
 
@@ -21,11 +21,11 @@ This milestone delivers a living knowledge system that learns codebase structure
   2. Index updates incrementally (only the changed file is reprocessed)
   3. Hook failures never block Claude — any error results in silent failure with `{ proceed: true }`
   4. Index file exists at `.planning/intel/index.json` with valid JSON structure
-**Plans**: TBD
+**Plans:** 2 plans
 
 Plans:
-- [ ] 01-01: Index store and data model
-- [ ] 01-02: PostToolUse indexing hook
+- [x] 01-01-PLAN.md — Index store and data model ✓
+- [x] 01-02-PLAN.md — PostToolUse indexing hook ✓
 
 ### Phase 2: Context Injection
 **Goal**: Claude receives codebase understanding automatically at session start
@@ -66,6 +66,6 @@ Plans:
 
 | Phase | Plans Complete | Status | Completed |
 |-------|----------------|--------|-----------|
-| 1. Foundation & Learning | 0/2 | Not started | - |
+| 1. Foundation & Learning | 2/2 | ✓ Complete | 2026-01-20 |
 | 2. Context Injection | 0/2 | Not started | - |
 | 3. Brownfield & Integration | 0/3 | Not started | - |