### Fixes

- Agents/tool-result guard: use the resolved runtime context token budget for non-context-engine tool-result overflow checks, so long tool-heavy sessions no longer compact early when `contextTokens` is larger than native `contextWindow`. Fixes #74917. Thanks @kAIborg24.

- Gateway/systemd: exit with sysexits 78 for supervised lock and `EADDRINUSE` conflicts so `RestartPreventExitStatus=78` stops `Restart=always` restart loops instead of repeatedly reloading plugins against an occupied port. Fixes #75115. Thanks @yhyatt.

- Plugins/runtime-deps: replace stale symlinked mirror target roots before writing runtime-mirror temp files and skip rewriting already materialized hardlinks, so cross-version container upgrades no longer crash-loop on read-only image-layer paths while warm mirrors do less churn. Fixes #75108; refs #75069. Thanks @coletebou and @xiaohuaxi.

- Auto-reply/group chats: fall back to automatic source delivery when a channel precomputes message-tool-only replies but the `message` tool is unavailable, so Discord/Slack-style group turns do not silently complete without a visible reply. Fixes #74868. Thanks @kagura-agent.

expect(result.messagesSnapshot).toEqual([seedMessage]);

});

});

describe("runEmbeddedAttempt tool-result guard budget wiring", () => {

const sessionKey = "agent:main:guildchat:channel:tool-result-guard-budget";

const tempPaths: string[] = [];

beforeEach(() => {

resetEmbeddedAttemptHarness();

clearMemoryPluginState();

});

afterEach(async () => {

await cleanupTempPaths(tempPaths);

clearMemoryPluginState();

vi.restoreAllMocks();

});

it("uses the resolved contextTokenBudget before model contextWindow", async () => {

await createContextEngineAttemptRunner({

contextEngine: createContextEngineBootstrapAndAssemble(),

sessionKey,

tempPaths,

attemptOverrides: {

contextTokenBudget: 1_000_000,

model: {

api: "openai-completions",

provider: "openai",

compat: {},

contextWindow: 200_000,

input: ["text"],

} as never,

},

});

expect(hoisted.installToolResultContextGuardMock).toHaveBeenCalledWith(

expect.objectContaining({

contextWindowTokens: 1_000_000,

}),

);

});

});

};

const contextTokenBudgetForGuard = Math.max(

1,

Math.floor(params.contextTokenBudget ?? DEFAULT_CONTEXT_TOKENS),

Math.floor(

params.contextTokenBudget ??

params.model.contextWindow ??

params.model.maxTokens ??

DEFAULT_CONTEXT_TOKENS,

),

);

const toolResultMaxCharsForGuard = resolveLiveToolResultMaxChars({

contextWindowTokens: contextTokenBudgetForGuard,

if (!activeContextEngine || activeContextEngine.info.ownsCompaction !== true) {

removeToolResultContextGuard = installToolResultContextGuard({

agent: activeSession.agent,

contextWindowTokens: Math.max(

1,

Math.floor(

params.model.contextWindow ?? params.model.maxTokens ?? DEFAULT_CONTEXT_TOKENS,

),

),

contextWindowTokens: contextTokenBudgetForGuard,

...(midTurnPrecheckEnabled

? {

midTurnPrecheck: {