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Slice #51b: Think GATHER Phase (Keyword Retrieval) #50

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on Jun 29, 2026

Phase 2/4 of Think migration - implement single-pass keyword retrieval.

Scope:

Implement basic keyword search in BrainEngine trait
InMemoryEngine implementation
Wire up to ThinkOperation
Add basic tests for retrieval logic

NO vector search, NO hybrid streaming yet - single-pass only.

jununfly
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enhancementNew feature or request

ready-for-agentFully specified and ready for an AFK agent
on Jun 29, 2026
jununfly
added a commit that references this issue on Jun 29, 2026
Complete operation layer migration (Slices #48, #49, #50, #51a)
c11a9cb
jununfly commented on Jun 29, 2026
jununfly
on Jun 29, 2026
OwnerAuthor
Completed: Single-pass keyword retrieval for Think operation (Issue #50/Slice #51b).

Changes:

Added SearchOpts and SearchResult structs in engine module

Added search_pages() method to BrainEngine trait with default implementation

Implemented keyword search for InMemoryEngine (title + content + frontmatter)

Score weighting: title (0.4) + content (0.4) + frontmatter (0.2) = 1.0 max

Results sorted by score descending, supports limit and source filtering

Integrated into ThinkOperation::execute() with engine context

6 tests for search functionality; all 156 tests passing
jununfly
closed this as completed on Jun 29, 2026
jununfly
added a commit that references this issue on Jun 29, 2026
Think operation: keyword retrieval + LLM synthesis integration
c4dfd1a

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