docs: proposal — ActionDef value-dispatch (body lowering + interpreter)#171
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ActionDefs emit effect signatures (writes/reads/calls/raises name sets) but kausal/body_source/on_enter are null across a real 2748-action corpus, so a consumer can check structural effect-parity but cannot execute an ActionDef to reproduce a recoverable method's value. The typed carriers (EnterEffect, KausalSpec) already exist in ogar-vocab; the frontend just never populates them. Proposes: (1) frontend lowering to populate on_enter/kausal from the recipe-codebook's recoverable band; (2) a lance-graph-side value interpreter consumers wire via a thin ActionDefExecutor trait (defaults to Unsupported). Agnostic producer/executor capability gap; no consumer-specific detail.
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What
Adds
docs/ACTIONDEF-VALUE-DISPATCH-PROPOSAL.md— a design proposal for closing the gap between the offline transpile (emits effect descriptors) and a runtime that dispatches recoverable methods value-for-value.Why
Measured over a real 2748-action compiled corpus, every
ActionDefhaskausal/body_source/on_enter= null; only the name-level effect sets (writes/reads/calls/raises) are populated.ogar-vocabdocuments this (lib.rs:402-403, 406): the value written "is not captured by today's frontend". So a consumer can verify structural effect-parity but cannot execute anActionDefto reproduce a method's return value — and re-deriving the formula in the consumer would violate the consumer-side "logic resolves at the Core, never re-implemented downstream" boundary.Proposal (two coordinated pieces)
EnterEffectforon_enter,KausalSpecforkausal) from the recipe-codebook's recoverable band, instead of name-level effect sets only. The schema exists; the frontend just never fills it.ActionDef+ inputs -> effect values; consumers wire it via a thinActionDefExecutortrait that defaults toUnsupporteduntil it lands.Agnostic producer/executor capability gap — no consumer-specific detail. Includes a bit-for-bit falsifier against a hand-written oracle.
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