Add --llm-reduce: one LLM prompt over all batch-transcribe results#179

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alexkroman merged 12 commits into

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feat/llm-reduce

Jun 16, 2026

Commits on Jun 16, 2026

Design spec: --llm-reduce map-reduce step for batch transcribe

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Plan: --llm-reduce map-reduce step for batch transcribe

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feat(transcribe): plumb --llm-reduce flag as data

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feat(transcribe): single-source --llm-reduce extends the chain

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feat(transcribe): batch --llm-reduce aggregates results to stdout

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docs(transcribe): document --llm-reduce and the reduce NDJSON event

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test: add llm_reduce to TranscribeOptions seam defaults

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test: use explicit replace kwargs for mypy in reduce seam test

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test: regenerate t-alias help snapshot for --llm-reduce

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test: cover reduce helper edge branches (empty input, status skip)

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refactor(transcribe): make _progress_table reduce_active explicit

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fix(transcribe): skip --llm-reduce call when there is nothing to reduce

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