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refactor(core): simplify instruction preview blobs (#45702)

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Kit Langton 2026-08-27 23:12:28 -04:00 • committed by GitHub
parent 0b82fe60ea
commit afe9e579d6
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2 changed files with 30 additions and 1 deletions
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2
packages/core/src/session/instruction-state.ts
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@ -202,7 +202,7 @@ export const preview = Effect.fn("InstructionState.preview")(function* (
update: Instructions.renderUpdate(
instructions,
dereference(state.current_values, stored),
dereferenceDelta(result.delta, new Map([...stored, ...observedBlobs])),
dereferenceDelta(result.delta, observedBlobs),
),
}
})

29
packages/core/test/instruction-state.test.ts
View file

@ -322,6 +322,35 @@ describe("InstructionState", () => {
}),
)
it.effect("previews changed and removed instructions from observed blobs", () =>
Effect.gen(function* () {
const sessionID = SessionSchema.ID.make("ses_instruction_generate_delta")
const { db, events } = yield* setup(sessionID)
let current = "Initial context"
let retired: string | Instructions.Removed = "Retired context"
const instructions = Instructions.combine([
source(
"test/current",
Effect.sync(() => current),
),
source(
"test/retired",
Effect.sync(() => retired),
),
])
yield* InstructionState.prepare(db, events, instructions, sessionID)
current = "Changed context"
retired = Instructions.removed
const assembled = yield* preview(db, sessionID, instructions)
expect(assembled.initial).toContain("Initial context")
expect(assembled.initial).toContain("Retired context")
expect(assembled.update).toContain("Changed context")
expect(assembled.update).toContain("Removed Retired context")
}),
)
it.effect("persists chronological updates as system messages", () =>
Effect.gen(function* () {
const sessionID = SessionSchema.ID.make("ses_instruction_messages")