diff --git a/dev_docs/SESSION_STATE.md b/dev_docs/SESSION_STATE.md
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 # CURRENT AI WORKING SESSION — HANDOVER
 
 **Active AI:** Claude Haiku 4.5
-**Last Updated:** 2026-04-22 (Session 33 - ImageAdjustmentModal Integration)
-**Current Version:** v1.14.6 (ImageAdjustmentModal integrated into AIOnboarding flow)
-**Branch:** dev (Phase 3 with user-controlled image adjustment post-save)
+**Last Updated:** 2026-04-22 (Session 34 - Phase 4.1 Context Gathering)
+**Current Version:** v1.14.6 (Phase 4.1 context captured for AI spare parts deep ID)
+**Branch:** dev (Phase 4.1 planning: AI prompt enhancement + internet search for spare parts)
+
+---
+
+## SESSION 34 SUMMARY — Phase 4.1 Context Gathering (AI Spare Parts Deep Identification)
+
+### Work Completed
+Conducted full discuss-phase workflow to capture design decisions for Phase 4.1. Gathered user requirements on AI prompt strategy, search API selection, search trigger/confirmation flow, and data extraction/item mapping.
+
+### Decisions Captured
+
+**D-01 (AI Prompt Strategy):**
+- Infer spare-part classification from extracted category (no explicit field needed)
+- Detailed categorization logic in prompt: "Components that plug into or connect to another device (not just cables) = spare part"
+- Examples: RAM, SSD, NVME, PCIe cards, disk, CPUs, power supplies, etc.
+- Consumables: cords, connectors, adhesives, fasteners
+
+**D-02 (Search API Selection):**
+- Use web scraping: Python `requests` + `BeautifulSoup` (no API key required)
+- Zero cost, suitable for low volume (tens/hour max)
+- Implement rate limiting with delays + User-Agent rotation to avoid IP blocking
+
+**D-03 (Search Trigger & UX):**
+- Automatic background search: After AI extraction, if category matches spare-parts whitelist AND Part Number exists
+- Block onboarding UI until search completes (user reviews all fields)
+- On failure: Show error with [Retry] and [Skip] buttons
+
+**D-04 (Data Extraction & Item Mapping):**
+- Extract: product type, specs, manufacturer/model, description/details
+- Store detailed specs in Notes field (keep Item Type searchable)
+- Pre-populate refined Category/Type from search; user can edit before save
+
+### Artifacts Created
+- `.planning/phases/4.1-ai-spare-parts-deep-id/4.1-CONTEXT.md` — Decisions + canonical refs + code context
+- `.planning/phases/4.1-ai-spare-parts-deep-id/4.1-DISCUSSION-LOG.md` — Full Q&A audit trail
+- **Git commit:** `b90085cc` docs(4.1): capture phase context and discussion log
+
+### Next Steps
+1. Run `/gsd-plan-phase 4.1` to create executable task plans
+2. Research AI prompt refinement + web scraping implementation
+3. Plan tasks for backend + frontend integration
+4. Execute Phase 4.1
+
+---
+
+## SESSION 33 SUMMARY — ImageAdjustmentModal Integration
 
 ---