31 lines
1010 B
Markdown
31 lines
1010 B
Markdown
---
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id: ML-155
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title: Compact collection summary format + statistical preamble for chat context
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status: Done
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assignee: []
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created_date: "2026-05-01 21:43"
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updated_date: "2026-05-01 21:49"
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labels: []
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dependencies: []
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priority: high
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---
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## Description
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<!-- SECTION:DESCRIPTION:BEGIN -->
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Reduce the token count of collection_summary/0 by:
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1. Compacting format_group/1 (year-only dates, remove type field, reduce max genres 3→2)
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2. Adding statistical preamble (genre/formats/decade distribution) computed inline from fetched records
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3. Updating tests for the new format
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<!-- SECTION:DESCRIPTION:END -->
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## Final Summary
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<!-- SECTION:FINAL_SUMMARY:BEGIN -->
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Compacted collection_summary format_group/1: year-only dates, removed type field, reduced max genres 3→2. Added statistical preamble (genre/formats/eras distribution + artist count) computed in-memory from already-fetched records. ~27% token reduction (~26.4k → ~19.4k for 1200 records). All 886 tests pass.
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<!-- SECTION:FINAL_SUMMARY:END -->
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