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feat(core): add v2 manual compaction (#34336)

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Kit Langton 2026-06-28 21:18:19 -04:00 • committed by GitHub
commit f7034a35a8
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13 changed files with 438 additions and 80 deletions
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23
packages/core/src/session.ts
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@ -33,6 +33,7 @@ import { MessageDecodeError } from "./session/error"
import { SessionEvent } from "./session/event"
import { SessionInput } from "./session/input"
import { Snapshot } from "./snapshot"
import { SessionCompaction } from "./session/compaction"
import { SessionRevert } from "./session/revert"
import { Revert } from "@opencode-ai/schema/revert"
import { FSUtil } from "./fs-util"
@ -87,7 +88,6 @@ type CreateInput = CreateBaseInput &
type CompactInput = {
sessionID: SessionSchema.ID
prompt?: Prompt
}
export class NotFoundError extends Schema.TaggedErrorClass<NotFoundError>()("Session.NotFoundError", {
@ -113,7 +113,7 @@ export class BusyError extends Schema.TaggedErrorClass<BusyError>()("Session.Bus
export const MessageNotFoundError = SessionRevert.MessageNotFoundError
export type MessageNotFoundError = SessionRevert.MessageNotFoundError
export type Error = NotFoundError | MessageDecodeError | OperationUnavailableError | PromptConflictError
export type Error = NotFoundError | MessageDecodeError | OperationUnavailableError | PromptConflictError | BusyError
export interface Interface {
readonly list: (input?: ListInput) => Effect.Effect<SessionSchema.Info[]>
@ -169,7 +169,9 @@ export interface Interface {
skill: string
resume?: boolean
}) => Effect.Effect<void, OperationUnavailableError>
readonly compact: (input: CompactInput) => Effect.Effect<void, NotFoundError | OperationUnavailableError>
readonly compact: (
input: CompactInput,
) => Effect.Effect<void, NotFoundError | BusyError | MessageDecodeError | OperationUnavailableError>
readonly wait: (id: SessionSchema.ID) => Effect.Effect<void, NotFoundError>
readonly active: Effect.Effect<ReadonlySet<SessionSchema.ID>>
readonly resume: (sessionID: SessionSchema.ID) => Effect.Effect<void, NotFoundError | SessionRunner.RunError>
@ -437,8 +439,19 @@ export const layer = Layer.effect(
})
}),
compact: Effect.fn("V2Session.compact")(function* (input) {
yield* result.get(input.sessionID)
return yield* new OperationUnavailableError({ operation: "compact" })
const session = yield* result.get(input.sessionID)
// TODO: admit manual compaction as durable pending work, like prompt input, instead of rejecting active sessions.
if ((yield* execution.active).has(input.sessionID)) return yield* new BusyError({ sessionID: input.sessionID })
const context = yield* store.context(input.sessionID)
const compacted = yield* Effect.gen(function* () {
const compaction = yield* SessionCompaction.Service
return yield* compaction.compactManual({ session, messages: context })
}).pipe(
Effect.provide(locations.get(session.location)),
Effect.catch(() => Effect.succeed(false)),
)
if (!compacted) return yield* new OperationUnavailableError({ operation: "compact" })
return undefined
}),
wait: Effect.fn("V2Session.wait")(function* (sessionID) {
yield* result.get(sessionID)