I've completed the Architecture Decision Record (ADR) for issue #326, successfully delivering the design phase. Here's what's now available:

📄 File: docs/ADR_326_test_first_ruflo_enrichment.md

Complete ADR including:

• Problem Statement: Semantic context missing from TDD test generation
• Decision: Enrich stage_test_first() with recall before prompt + store after files written
• Chosen Approach:
  • Recall at line 20 using ruflo_recall_similar_outcomes(TASK_TYPE, ISSUE_LABELS)
  • Inject results into tdd_prompt heredoc as "## Similar Past Test Generations"
  • Store at line 109 with key test_first-PIPELINE_ID-timestamp
• Alternatives Evaluated: 4 rejected approaches with detailed rationale
• Implementation Plan: Exact code locations, dependencies, data flow
• Validation Criteria: 8 checkpoints before merge
• Risk Analysis: 5 identified risks with mitigations

✅ Stored in namespace pipeline-31764-326 with semantic embeddings for future recall

📄 docs/PLAN_326_test_first_ruflo_enrichment.md — All assumptions pre-validated

The ADR is ready for build with these concrete steps:

All insertion points verified, fail-open design documented, no breaking changes.

The pipeline can now proceed to the build stage to implement the design.