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fix(core): clamp compaction output budget (#36745)

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Co-authored-by: Dax Raad <thdxr@users.noreply.github.com>
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opencode-agent[bot] 2026-07-13 17:50:20 -04:00 • committed by GitHub
commit fbe7f26e71
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2 changed files with 26 additions and 1 deletions
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24
packages/core/test/session-runner.test.ts
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@ -139,6 +139,11 @@ const compactModel = Model.make({
provider: "fake",
route: OpenAIChat.route.with({ limits: { context: 4_000, output: 50 } }),
})
const fullOutputModel = Model.make({
id: "full-output",
provider: "fake",
route: OpenAIChat.route.with({ limits: { context: 262_144, output: 262_144 } }),
})
const undersizedContextModel = Model.make({
id: "undersized-context",
provider: "fake",
@ -1865,6 +1870,25 @@ describe("SessionRunnerLLM", () => {
}),
)
it.effect("does not compact immediately when the advertised output limit fills the context", () =>
Effect.gen(function* () {
const session = yield* setup
currentModel = fullOutputModel
response = reply.textWithUsage("Earlier answer", "text-full-output-first", 9_500)
yield* admit(session, "Earlier question")
yield* session.resume(sessionID)
requests.length = 0
response = reply.text("Continued", "text-full-output-final")
yield* admit(session, "Continue")
yield* session.resume(sessionID)
expect(requests).toHaveLength(1)
expect(userTexts(requests[0])).toContain("Continue")
expect(yield* session.context(sessionID)).not.toContainEqual(expect.objectContaining({ type: "compaction" }))
}),
)
it.effect("stops after required automatic compaction fails", () =>
Effect.gen(function* () {
const session = yield* setup