fix(coding-agent): expand slash commands in non-interactive runs

packages/coding-agent/CHANGELOG.md

@@ -12,6 +12,7 @@
 - Made Telegram reference-client capability diagnostics safe for TUI embedding.
 - A Telegram notification daemon whose reconciliation pass fails no longer exits. The pass persists through the shared topic authority, and a momentarily unavailable authority (lock contention or a rejected compare-and-set) rejected out of both the scan timer and the run loop into the process-level fatal handler, killing the owner. Every session topic was then left behind as an unarchived shell that answers nothing — including for sessions that were still live and lost their notifications. The pass now reports the failure and the next scan interval retries it; the queue-flush timer is guarded the same way.
 - MiniMax M3 preset and profile ids canonicalized to `MiniMax-M3` (issue #3896): the `minimax` / `minimax-cn` onboarding presets and the `minimax-eco` / `minimax-medium` / `minimax-pro` builtin model profiles no longer reference the removed lowercase `minimax-m3` / `minimax-v3` first-class catalog ids.
+- Slash commands now expand in non-interactive runs. `gjc -p "/init"` previously reached the model as the literal text `/init`, so no command body was injected, no file was written, and the model still answered as if the command had run. Print mode now loads the same bundled and file-based command list interactive mode uses before it prompts.
 - `gjc plugin install <name>` now names the marketplaces that offer `<name>` when the npm resolution it falls back to fails, so a plugin name copied out of `gjc plugin discover` no longer dead-ends on a bare `install_failed`.
 - A remote multi-select ask now shows what is already selected. The ask tool re-issues one remote request per toggle, but the request carried no selection state, so Telegram kept posting an identical prompt with no sign that option 1 had been picked — the checkbox rendering existed only for durable workflow gates. `AskAnswerRequest` now carries `multi` and the selected option labels, the notification bus publishes them as `selectedOptionIndices` with the `(N selected)` question prefix while keeping the ask tool's own Next/Done control, and pre-numbered options (deep interview) are renumbered once instead of rendering as `1. ☑ 1. …`.
 

packages/coding-agent/src/modes/print-mode.ts

@@ -7,6 +7,7 @@
  */
 import { type AssistantMessage, type ImageContent, isContextOverflow } from "@gajae-code/ai";
 import { isKnownSinkPeerClosedError, logger, sanitizeText } from "@gajae-code/utils";
+import { loadSlashCommands } from "../extensibility/slash-commands";
 import type { AgentSession } from "../session/agent-session";
 import { isSilentAbort } from "../session/messages";
 import { initializeExtensions } from "./runtime-init";
@@ -207,6 +208,15 @@ export async function runPrintMode(session: AgentSession, options: PrintModeOpti
 			if (header) stdout.write(`${JSON.stringify(header)}\n`);
 		}
 
+		// Bundled and file-based slash commands (`/init`, project `commands/*.md`, …) expand
+		// inside AgentSession#prompt from the list handed over by setSlashCommands. Interactive
+		// mode loads it while building its autocomplete; print mode has no autocomplete, so
+		// without this the list stays empty and a leading-slash prompt reaches the model as
+		// literal prose — no expansion, no error, and an answer that looks like the command ran.
+		await logger.time("print:slash-commands", async () => {
+			session.setSlashCommands(await loadSlashCommands({ cwd: session.sessionManager.getCwd() }));
+		});
+
 		// Set up extensions for print mode (no UI, no command context).
 		await initializeExtensions(session, {
 			reportSendError: (action, err) => {

packages/coding-agent/test/silent-abort-print-mode.test.ts

@@ -70,7 +70,9 @@ function createMockSession(
 		autoCompactionEnabled: opts?.autoCompactionEnabled ?? false,
 		sessionManager: {
 			getHeader: () => undefined,
+			getCwd: () => import.meta.dir,
 		},
+		setSlashCommands: () => {},
 		extensionRunner: undefined,
 		subscribe: () => () => {},
 		prompt: async () => {},
@@ -113,11 +115,16 @@ function createPrintModeTrackingSession(
 		for (const event of events) emit(event);
 		lifecycle.push("prompt:end");
 	});
+	// Print mode hands the loaded slash commands to the session before it prompts, so the
+	// fake models both seams. Ordering is pinned in its own test rather than in `lifecycle`,
+	// which the disposal/EPIPE cases assert byte-for-byte.
+	const setSlashCommands = vi.fn();
 	const session = {
 		configWarnings: [],
 		state: { messages },
-		sessionManager: { getHeader: () => header },
+		sessionManager: { getHeader: () => header, getCwd: () => import.meta.dir },
 		extensionRunner: undefined,
+		setSlashCommands,
 		subscribe: (listener: (event: unknown) => void) => {
 			lifecycle.push("subscribe");
 			onEvent = listener;
@@ -135,6 +142,7 @@ function createPrintModeTrackingSession(
 		session,
 		dispose,
 		prompt,
+		setSlashCommands,
 		lifecycle,
 		unsubscribeCount: () => unsubscribeCount,
 	};
@@ -527,3 +535,28 @@ describe("Print mode", () => {
 		}
 	});
 });
+
+describe("Print mode slash-command expansion", () => {
+	it("hands bundled slash commands to the session before the first prompt", async () => {
+		const { runPrintMode } = await import("../src/modes/print-mode");
+		const tracking = createPrintModeTrackingSession();
+		installImmediateStdoutMock();
+
+		const order: string[] = [];
+		tracking.setSlashCommands.mockImplementation((commands: unknown) => {
+			order.push("setSlashCommands");
+			const names = (commands as Array<{ name: string }>).map(cmd => cmd.name);
+			// `/init` is embedded in the binary, so it is present regardless of cwd. Without the
+			// handover the session keeps an empty list and `/init` reaches the model as prose.
+			expect(names).toContain("init");
+		});
+		tracking.prompt.mockImplementation(async () => {
+			order.push("prompt");
+		});
+
+		await runPrintMode(tracking.session, { mode: "text", initialMessage: "/init" });
+
+		expect(tracking.setSlashCommands).toHaveBeenCalledTimes(1);
+		expect(order).toEqual(["setSlashCommands", "prompt"]);
+	});
+});