docs(04-03): complete entity generation instructions plan

Tasks completed: 3/3
- Add @anthropic-ai/sdk dependency
- Add semantic entity generation to analyze-codebase
- Add context section explaining execution model

SUMMARY: .planning/phases/04-semantic-intelligence/04-03-SUMMARY.md

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

.planning/STATE.md

@@ -10,18 +10,18 @@ See: .planning/PROJECT.md (updated 2026-01-19)
 ## Current Position
 
 Phase: 4 of 4 (Semantic Intelligence & Scale)
-Plan: 1 of 3 complete
+Plan: 2 of 3 complete
 Status: In progress
-Last activity: 2026-01-20 — Completed 04-01-PLAN.md (SQLite graph layer)
+Last activity: 2026-01-20 — Completed 04-03-PLAN.md (Entity Generation Instructions)
 
-Progress: [████████░░] 80%
+Progress: [█████████░] 90%
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 8
-- Average duration: 2.5 min
-- Total execution time: 21 min
+- Total plans completed: 9
+- Average duration: 2.6 min
+- Total execution time: 23 min
 
 **By Phase:**
 
@@ -30,7 +30,7 @@ Progress: [████████░░] 80%
 | 1. Foundation & Learning | 2/2 | 7 min | 3.5 min |
 | 2. Context Injection | 2/2 | 4 min | 2.0 min |
 | 3. Brownfield & Integration | 3/3 | 6 min | 2.0 min |
-| 4. Semantic Intelligence | 1/3 | 4 min | 4.0 min |
+| 4. Semantic Intelligence | 2/3 | 6 min | 3.0 min |
 
 *Updated after each plan completion*
 
@@ -58,6 +58,9 @@ Progress: [████████░░] 80%
 | Virtual id from JSON body | 04-01 | Flexible node structure with unique constraint |
 | Delete-then-insert for edges | 04-01 | Clean replacement removes stale links |
 | Singleton WASM instance | 04-01 | Avoids repeated sql.js init overhead |
+| 50 file limit per entity run | 04-03 | Prevents context window exhaustion |
+| Batches of 10 for Task tool | 04-03 | Balances parallelization with overhead |
+| Entity slug: path--segments--file-ext.md | 04-03 | Flat directory with reversible identification |
 
 ### Pending Todos
 
@@ -70,7 +73,7 @@ Progress: [████████░░] 80%
 ## Session Continuity
 
 Last session: 2026-01-20
-Stopped at: Completed 04-01-PLAN.md
+Stopped at: Completed 04-03-PLAN.md
 Resume file: None
 
 ## Phase Progress
@@ -78,9 +81,9 @@ Resume file: None
 - Phase 1: Foundation & Learning ✓
 - Phase 2: Context Injection ✓
 - Phase 3: Brownfield & Integration ✓
-- Phase 4: Semantic Intelligence & Scale ◐ (1/3 plans complete)
+- Phase 4: Semantic Intelligence & Scale ◐ (2/3 plans complete)
 
 **Phase 4 status:**
 - 04-01: SQLite graph layer ✓
 - 04-02: Query interface ○
-- 04-03: Integration ○
+- 04-03: Entity generation instructions ✓

.planning/phases/04-semantic-intelligence/04-03-SUMMARY.md

@@ -0,0 +1,101 @@
+---
+phase: 04-semantic-intelligence
+plan: 03
+subsystem: intel
+tags: [entity-generation, semantic-analysis, task-batching, anthropic-sdk]
+
+# Dependency graph
+requires:
+  - phase: 04-01
+    provides: SQLite graph layer for relationship storage
+provides:
+  - Semantic entity generation instructions in analyze-codebase command
+  - Task tool batching pattern for 100+ file processing
+  - Entity template with Purpose-focused documentation
+affects: [04-02, future-intel-queries]
+
+# Tech tracking
+tech-stack:
+  added: ["@anthropic-ai/sdk ^0.52.0"]
+  patterns: [Task tool batching, entity slug convention]
+
+key-files:
+  created: []
+  modified:
+    - commands/gsd/analyze-codebase.md
+    - package.json
+
+key-decisions:
+  - "50 file limit per run to manage context"
+  - "Batches of 10 files via Task tool for parallelization"
+  - "Entity slug convention: path--segments--filename-ext.md"
+  - "Selection criteria: 3+ exports, 5+ dependents, key directories"
+
+patterns-established:
+  - "Task tool batching: spawn subagents for batch processing large file sets"
+  - "Entity template: Purpose > Exports > Dependencies > Used By"
+
+# Metrics
+duration: 2min
+completed: 2026-01-20
+---
+
+# Phase 4 Plan 3: Entity Generation Instructions Summary
+
+**Semantic entity generation via Task tool batching in analyze-codebase command**
+
+## Performance
+
+- **Duration:** 2 min
+- **Started:** 2026-01-20T15:56:34Z
+- **Completed:** 2026-01-20T15:58:41Z
+- **Tasks:** 3
+- **Files modified:** 2
+
+## Accomplishments
+
+- Added @anthropic-ai/sdk dependency for future API-based entity generation
+- Created Step 9 in analyze-codebase for semantic entity file generation
+- Documented Task tool batching pattern for 100+ file codebases
+- Established entity template with Purpose-focused semantic documentation
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Add Anthropic SDK dependency** - `8d33ae7` (chore)
+2. **Task 2 & 3: Add entity generation + execution model** - `b3db2ff` (feat)
+
+## Files Created/Modified
+
+- `package.json` - Added @anthropic-ai/sdk ^0.52.0 dependency
+- `commands/gsd/analyze-codebase.md` - Added Step 9 for entity generation, Task tool in allowed-tools, execution model context
+
+## Decisions Made
+
+- **50 file limit per run:** Prevents context window exhaustion during entity generation
+- **Batches of 10:** Balances parallelization with Task tool overhead
+- **Entity slug convention (path--segments--filename-ext.md):** Flat directory structure with reversible file identification
+- **Selection criteria priority:** High-export files first, then hub files, then key directories
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+
+None.
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+
+- Entity generation instructions complete in analyze-codebase command
+- Ready for 04-02 (Query Interface) to query entity relationships
+- Graph layer from 04-01 available for entity relationship storage
+
+---
+*Phase: 04-semantic-intelligence*
+*Completed: 2026-01-20*