refactor: add Effect-returning versions of MessageV2 functions#20374
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kitlangton merged 3 commits intodevfrom Apr 1, 2026
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refactor: add Effect-returning versions of MessageV2 functions#20374kitlangton merged 3 commits intodevfrom
kitlangton merged 3 commits intodevfrom
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Extract sync cores (partsSync, getSync, pageSync) from MessageV2 DB functions and add Effect.fn wrappers: partsEffect, getEffect, pageEffect, streamEffect, filterCompactedEffect, toModelMessagesEffect. Replace all Effect.promise(() => MessageV2.*) call sites in processor, prompt, compaction, session index, and tests with direct yield* calls.
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… pagination - Remove partsEffect/getEffect/pageEffect; call sync functions directly - Convert streamMessages to lazy Stream.paginate (chunk-efficient) - Add filterCompactedMessages using Stream.takeUntil on the stream - Make toModelMessagesEffect the primary impl, derive promise version
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…overage 43 tests covering sync DB functions, cursor pagination, session isolation, compaction boundaries, and cross-function consistency.
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Summary
partsSync,getSync,pageSync) from MessageV2 DB functions that were unnecessarilyasync(allDatabase.usecalls are synchronous)Effect.fnexports:partsEffect,getEffect,pageEffect,streamEffect,filterCompactedEffect,toModelMessagesEffectEffect.promise(() => MessageV2.*)call sites with directyield*calls across processor, prompt, compaction, session index, and testsTest plan
bun run test -- test/session/processor-effect— 10/10 passbun run test -- test/session/prompt-effect— 25/25 passbun run test -- test/session/— 180/180 pass (4 skipped)