# Review: AD-604 Spreading Activation (Re-review #2)

**Prompt:** prompts/ad-604-spreading-activation.md
**Reviewer:** Architect
**Date:** 2026-04-27 (third pass)
**Verdict:** ✅ Approved
**Previous Verdict:** ⚠️ Conditional

## Improvements Since Prior Review
- **Constructor contradiction RESOLVED.** No `else: # Only for unit tests` branch. Constructor takes `config: Any` (required) and accesses fields directly.
- `_apply_hop_decay` uses `dataclasses.replace()` correctly with explicit Builder note about RecallScore being frozen.
- Hop decay applied to second-hop, dedup keeps max score, sorted descending — correct semantics.
- Lazy-init in CognitiveAgent with proper config-driven enable check.
- Explicit Builder note about `_format_recall_score`: "If it doesn't exist, search for the existing pattern" — pragmatic guidance.

## Required
None.

## Recommended
- The `_format_recall_score` Builder note acknowledges uncertainty about the helper's existence. Add an explicit Verify step before code generation: "Confirm `_format_recall_score` exists or identify the actual format pattern in the existing recall path."

## Nits
- `recall_by_anchor_scored` is called with `agent_id` and four anchor field params — confirm the EpisodicMemory signature accepts these as keyword args.

## Recommendation
Ship it.
