Replace hardcoded subtraction chain with registry-driven decomposition#321

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alexmojaki wants to merge 83 commits intomainfrom

feat/token-unit-registry

Commits on Mar 23, 2026

Commits on Mar 30, 2026

Add initial data-driven unit registry spec: axioms and derived principles
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Spec: add unit distribution requirement and explicit validation rules
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Spec: add pricing accuracy as top-level goal, distinguish price vs usage completeness
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Spec: add unit naming convention, acknowledge cache_audio_read inconsistency
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Spec: replace naming convention with writability principle and schema generation
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Rename cache units to cache_{modality}_{op} pattern (mechanical)
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Spec: add dimension-filtered aggregate counts
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Spec: add inconsistent usage rejection and price sanity checks
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Spec: add derived requirements — runtime mechanics, requests_kcount, cost aggregates, ID uniqueness
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Spec: add missing items from old spec — usage key default, decomposition scope, catch-all convention, examples
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Remove old unit registry spec, superseded by specs/data-driven-unit-registry/
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Spec: address review issues — fix forward ref, citations, examples, add algorithm doc
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Spec: address second review — fix forward ref, join ambiguity, requests naming, catch-all wording
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Spec: fix requests_kcount usage key — concrete value, not vague
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Spec: note custom unit API as open question
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Spec: add validation performance constraint — expensive checks at definition time only
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Spec: clarify data.py vs data.json, validation trust is about provenance not format
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Spec: note JS package also has generated data file alongside Python
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algorithm.md: clarify depth = number of dimensions, no zero-dimension root
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Spec: address third review — forward ref, citations, TieredPrices scope, unpriced usage
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Spec: address fourth review — unpriced family ignored, zero aggregate, algorithm poset clarification
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Resolve open question: custom units arrive via DataSnapshot
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Simplify custom unit API: families live in snapshot, no separate registration
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Add spec item: Mapping usage keys validated against registry
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Commits on Mar 31, 2026

Commits on Apr 2, 2026

Commits on Apr 7, 2026