expect(result).toEqual({          subject: "Tighten OpenCode parsing",          body: "Handle JSON text output locally.",        });      }),    ),  );   it.effect("surfaces the upstream OpenCode structured-output error message", () =>    withOpenCodeTextGeneration(DEFAULT_OPENCODE_SETTINGS, (textGeneration) =>      Effect.gen(function* () {        runtimeMock.state.promptResult = {          data: {            info: {              error: {                name: "StructuredOutputError",                data: {                  message: "Model did not produce structured output",                  retries: 2,                },              },            },          },        };         const error = yield* textGeneration          .generateCommitMessage(DEFAULT_COMMIT_MESSAGE_INPUT)          .pipe(Effect.flip);         expect(error.message).toContain("Model did not produce structured output");        expect(error.cause).toMatchObject({          _tag: "OpenCodeTextGenerationPromptResponseError",          operation: "generateCommitMessage",          cwd: process.cwd(),          sessionId: "http://127.0.0.1:4301/session",          providerId: "openai",          modelId: "gpt-5",          providerErrorName: "StructuredOutputError",          providerMessage: "Model did not produce structured output",        });        expect(error.cause).not.toHaveProperty("cause");      }),    ),  );}); it.layer(OpenCodeTextGenerationExistingServerTestLayer)(  "OpenCodeTextGeneration with configured server URL",  (it) => {    it.effect("does not send a local environment password to a configured server", () =>      withOpenCodeTextGeneration(        EXTERNAL_SERVER_WITHOUT_AUTH_OPENCODE_SETTINGS,        (textGeneration) =>          Effect.gen(function* () {            yield* textGeneration.generateCommitMessage(DEFAULT_COMMIT_MESSAGE_INPUT);            expect(runtimeMock.state.authHeaders).toEqual([null]);          }),        { OPENCODE_SERVER_PASSWORD: "local-secret" },      ),    );     it.effect("does not create a session when the server version is unsupported", () =>      withOpenCodeTextGeneration(EXISTING_SERVER_OPENCODE_SETTINGS, (textGeneration) =>        Effect.gen(function* () {          runtimeMock.state.connectionError = new Error(            "OpenCode v1.14.18 is too old. Upgrade to v1.14.19 or newer.",          );           const error = yield* textGeneration            .generateCommitMessage(DEFAULT_COMMIT_MESSAGE_INPUT)            .pipe(Effect.flip);           expect(error).toBeInstanceOf(TextGenerationError);          expect(error.message).toContain("v1.14.18 is too old");          expect(runtimeMock.state.sessionCreateCalls).toBe(0);        }),      ),    );     it.effect("reuses a configured OpenCode server URL without spawning or applying idle TTL", () =>      withOpenCodeTextGeneration(EXISTING_SERVER_OPENCODE_SETTINGS, (textGeneration) =>        Effect.gen(function* () {          yield* textGeneration.generateCommitMessage({            cwd: process.cwd(),            branch: "feature/opencode-reuse",            stagedSummary: "M README.md",            stagedPatch: "diff --git a/README.md b/README.md",            modelSelection: DEFAULT_TEST_MODEL_SELECTION,          });          yield* textGeneration.generateCommitMessage({            cwd: process.cwd(),            branch: "feature/opencode-reuse",            stagedSummary: "M README.md",            stagedPatch: "diff --git a/README.md b/README.md",            modelSelection: DEFAULT_TEST_MODEL_SELECTION,          });           expect(runtimeMock.state.startCalls).toEqual([]);          expect(runtimeMock.state.promptUrls).toEqual([            "http://127.0.0.1:9999",            "http://127.0.0.1:9999",          ]);          expect(runtimeMock.state.authHeaders).toEqual([            `Basic ${btoa("opencode:secret-password")}`,            `Basic ${btoa("opencode:secret-password")}`,          ]);           yield* advanceIdleClock;           expect(runtimeMock.state.closeCalls).toEqual([]);        }),      ).pipe(Effect.provide(TestClock.layer())),    );  },);

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