// runSingleShotMode removed - replaced by runPrintMode from ./modes/print-mode.ts
// executeRpcBashCommand removed - replaced by executeBash from ./core/bash-executor.ts
// runRpcMode removed - replaced by runRpcMode from ./modes/rpc-mode.ts

async function DELETED_runSingleShotMode(
	agent: Agent,
	_sessionManager: SessionManager,
	messages: string[],
	mode: "text" | "json",
	initialMessage?: string,
	initialAttachments?: Attachment[],
): Promise<void> {
	// Load file-based slash commands for expansion
	const fileCommands = loadSlashCommands();

	if (mode === "json") {
		// Subscribe to all events and output as JSON
		agent.subscribe((event) => {
			// Output event as JSON (same format as session manager)
			console.log(JSON.stringify(event));
		});
	}

	// Send initial message with attachments if provided
	if (initialMessage) {
		await agent.prompt(expandSlashCommand(initialMessage, fileCommands), initialAttachments);
	}

	// Send remaining messages
	for (const message of messages) {
		await agent.prompt(expandSlashCommand(message, fileCommands));
	}

	// In text mode, only output the final assistant message
	if (mode === "text") {
		const lastMessage = agent.state.messages[agent.state.messages.length - 1];
		if (lastMessage.role === "assistant") {
			const assistantMsg = lastMessage as AssistantMessage;

			// Check for error/aborted and output error message
			if (assistantMsg.stopReason === "error" || assistantMsg.stopReason === "aborted") {
				console.error(assistantMsg.errorMessage || `Request ${assistantMsg.stopReason}`);
				process.exit(1);
			}

			for (const content of assistantMsg.content) {
				if (content.type === "text") {
					console.log(content.text);
				}
			}
		}
	}
}

/**
 * Execute a bash command for RPC mode.
 * Similar to tui-renderer's executeBashCommand but without streaming callbacks.
 */
async function executeRpcBashCommand(command: string): Promise<{
	output: string;
	exitCode: number | null;
	truncationResult?: ReturnType<typeof truncateTail>;
	fullOutputPath?: string;
}> {
	return new Promise((resolve, reject) => {
		const { shell, args } = getShellConfig();
		const child = spawn(shell, [...args, command], {
			detached: true,
			stdio: ["ignore", "pipe", "pipe"],
		});

		const chunks: Buffer[] = [];
		let chunksBytes = 0;
		const maxChunksBytes = DEFAULT_MAX_BYTES * 2;

		let tempFilePath: string | undefined;
		let tempFileStream: ReturnType<typeof createWriteStream> | undefined;
		let totalBytes = 0;

		const handleData = (data: Buffer) => {
			totalBytes += data.length;

			// Start writing to temp file if exceeds threshold
			if (totalBytes > DEFAULT_MAX_BYTES && !tempFilePath) {
				const id = randomBytes(8).toString("hex");
				tempFilePath = join(tmpdir(), `pi-bash-${id}.log`);
				tempFileStream = createWriteStream(tempFilePath);
				for (const chunk of chunks) {
					tempFileStream.write(chunk);
				}
			}

			if (tempFileStream) {
				tempFileStream.write(data);
			}

			// Keep rolling buffer
			chunks.push(data);
			chunksBytes += data.length;
			while (chunksBytes > maxChunksBytes && chunks.length > 1) {
				const removed = chunks.shift()!;
				chunksBytes -= removed.length;
			}
		};

		child.stdout?.on("data", handleData);
		child.stderr?.on("data", handleData);

		child.on("close", (code) => {
			if (tempFileStream) {
				tempFileStream.end();
			}

			// Combine buffered chunks
			const fullBuffer = Buffer.concat(chunks);
			const fullOutput = stripAnsi(fullBuffer.toString("utf-8")).replace(/\r/g, "");
			const truncationResult = truncateTail(fullOutput);

			resolve({
				output: fullOutput,
				exitCode: code,
				truncationResult: truncationResult.truncated ? truncationResult : undefined,
				fullOutputPath: tempFilePath,
			});
		});

		child.on("error", (err) => {
			if (tempFileStream) {
				tempFileStream.end();
			}
			reject(err);
		});
	});
}

async function runRpcMode(
	agent: Agent,
	sessionManager: SessionManager,
	settingsManager: SettingsManager,
): Promise<void> {
	// Track if auto-compaction is in progress
	let autoCompactionInProgress = false;

	// Auto-compaction helper
	const checkAutoCompaction = async () => {
		if (autoCompactionInProgress) return;

		const settings = settingsManager.getCompactionSettings();
		if (!settings.enabled) return;

		// Get last non-aborted assistant message
		const messages = agent.state.messages;
		let lastAssistant: AssistantMessage | null = null;
		for (let i = messages.length - 1; i >= 0; i--) {
			const msg = messages[i];
			if (msg.role === "assistant") {
				const assistantMsg = msg as AssistantMessage;
				if (assistantMsg.stopReason !== "aborted") {
					lastAssistant = assistantMsg;
					break;
				}
			}
		}
		if (!lastAssistant) return;

		const contextTokens = calculateContextTokens(lastAssistant.usage);
		const contextWindow = agent.state.model.contextWindow;

		if (!shouldCompact(contextTokens, contextWindow, settings)) return;

		// Trigger auto-compaction
		autoCompactionInProgress = true;
		try {
			const apiKey = await getApiKeyForModel(agent.state.model);
			if (!apiKey) {
				throw new Error(`No API key for ${agent.state.model.provider}`);
			}

			const entries = sessionManager.loadEntries();
			const compactionEntry = await compact(entries, agent.state.model, settings, apiKey);

			sessionManager.saveCompaction(compactionEntry);
			const loaded = loadSessionFromEntries(sessionManager.loadEntries());
			agent.replaceMessages(loaded.messages);

			// Emit auto-compaction event
			console.log(JSON.stringify({ ...compactionEntry, auto: true }));
		} catch (error: unknown) {
			const message = error instanceof Error ? error.message : String(error);
			console.log(JSON.stringify({ type: "error", error: `Auto-compaction failed: ${message}` }));
		} finally {
			autoCompactionInProgress = false;
		}
	};

	// Subscribe to all events and output as JSON (same pattern as tui-renderer)
	agent.subscribe(async (event) => {
		console.log(JSON.stringify(event));

		// Save messages to session
		if (event.type === "message_end") {
			sessionManager.saveMessage(event.message);

			// Yield to microtask queue to allow agent state to update
			// (tui-renderer does this implicitly via await handleEvent)
			await Promise.resolve();

			// Check if we should initialize session now (after first user+assistant exchange)
			if (sessionManager.shouldInitializeSession(agent.state.messages)) {
				sessionManager.startSession(agent.state);
			}

			// Check for auto-compaction after assistant messages
			if (event.message.role === "assistant") {
				await checkAutoCompaction();
			}
		}
	});

	// Listen for JSON input on stdin
	const readline = await import("readline");
	const rl = readline.createInterface({
		input: process.stdin,
		output: process.stdout,
		terminal: false,
	});

	rl.on("line", async (line: string) => {
		try {
			const input = JSON.parse(line);

			// Handle different RPC commands
			if (input.type === "prompt" && input.message) {
				await agent.prompt(input.message, input.attachments);
			} else if (input.type === "abort") {
				agent.abort();
			} else if (input.type === "compact") {
				// Handle compaction request
				try {
					const apiKey = await getApiKeyForModel(agent.state.model);
					if (!apiKey) {
						throw new Error(`No API key for ${agent.state.model.provider}`);
					}

					const entries = sessionManager.loadEntries();
					const settings = settingsManager.getCompactionSettings();
					const compactionEntry = await compact(
						entries,
						agent.state.model,
						settings,
						apiKey,
						undefined,
						input.customInstructions,
					);

					// Save and reload
					sessionManager.saveCompaction(compactionEntry);
					const loaded = loadSessionFromEntries(sessionManager.loadEntries());
					agent.replaceMessages(loaded.messages);

					// Emit compaction event (compactionEntry already has type: "compaction")
					console.log(JSON.stringify(compactionEntry));
				} catch (error: any) {
					console.log(JSON.stringify({ type: "error", error: `Compaction failed: ${error.message}` }));
				}
			} else if (input.type === "bash" && input.command) {
				// Execute bash command and add to context
				try {
					const result = await executeRpcBashCommand(input.command);

					// Create bash execution message
					const bashMessage: BashExecutionMessage = {
						role: "bashExecution",
						command: input.command,
						output: result.truncationResult?.content || result.output,
						exitCode: result.exitCode,
						cancelled: false,
						truncated: result.truncationResult?.truncated || false,
						fullOutputPath: result.fullOutputPath,
						timestamp: Date.now(),
					};

					// Add to agent state and save to session
					agent.appendMessage(bashMessage);
					sessionManager.saveMessage(bashMessage);

					// Initialize session if needed (same logic as message_end handler)
					if (sessionManager.shouldInitializeSession(agent.state.messages)) {
						sessionManager.startSession(agent.state);
					}

					// Emit bash_end event with the message
					console.log(JSON.stringify({ type: "bash_end", message: bashMessage }));
				} catch (error: any) {
					console.log(JSON.stringify({ type: "error", error: `Bash command failed: ${error.message}` }));
				}
			}
		} catch (error: any) {
			// Output error as JSON
			console.log(JSON.stringify({ type: "error", error: error.message }));
		}
	});

	// Keep process alive
	return new Promise(() => {});
}

export async function main(args: string[]) {
	const parsed = parseArgs(args);

[425 more lines in file. Use offset=1120 to continue]


Let me delete from the comment line to the closing brace of runRpcMode:

edit

// runSingleShotMode removed - replaced by runPrintMode from ./modes/print-mode.ts
// executeRpcBashCommand removed - replaced by executeBash from ./core/bash-executor.ts
// runRpcMode removed - replaced by runRpcMode from ./modes/rpc-mode.ts

async function DELETED_runSingleShotMode(
	agent: Agent,
	_sessionManager: SessionManager,
	messages: string[],
	mode: "text" | "json",
	initialMessage?: string,
	initialAttachments?: Attachment[],
): Promise<void> {
	// Load file-based slash commands for expansion
	const fileCommands = loadSlashCommands();

	if (mode === "json") {
		// Subscribe to all events and output as JSON
		agent.subscribe((event) => {
			// Output event as JSON (same format as session manager)
			console.log(JSON.stringify(event));
		});
	}

	// Send initial message with attachments if provided
	if (initialMessage) {
		await agent.prompt(expandSlashCommand(initialMessage, fileCommands), initialAttachments);
	}

	// Send remaining messages
	for (const message of messages) {
		await agent.prompt(expandSlashCommand(message, fileCommands));
	}

	// In text mode, only output the final assistant message
	if (mode === "text") {
		const lastMessage = agent.state.messages[agent.state.messages.length - 1];
		if (lastMessage.role === "assistant") {
			const assistantMsg = lastMessage as AssistantMessage;

			// Check for error/aborted and output error message
			if (assistantMsg.stopReason === "error" || assistantMsg.stopReason === "aborted") {
				console.error(assistantMsg.errorMessage || `Request ${assistantMsg.stopReason}`);
				process.exit(1);
			}

			for (const content of assistantMsg.content) {
				if (content.type === "text") {
					console.log(content.text);
				}
			}
		}
	}
}

/**
 * Execute a bash command for RPC mode.
 * Similar to tui-renderer's executeBashCommand but without streaming callbacks.
 */
async function executeRpcBashCommand(command: string): Promise<{
	output: string;
	exitCode: number | null;
	truncationResult?: ReturnType<typeof truncateTail>;
	fullOutputPath?: string;
}> {
	return new Promise((resolve, reject) => {
		const { shell, args } = getShellConfig();
		const child = spawn(shell, [...args, command], {
			detached: true,
			stdio: ["ignore", "pipe", "pipe"],
		});

		const chunks: Buffer[] = [];
		let chunksBytes = 0;
		const maxChunksBytes = DEFAULT_MAX_BYTES * 2;

		let tempFilePath: string | undefined;
		let tempFileStream: ReturnType<typeof createWriteStream> | undefined;
		let totalBytes = 0;

		const handleData = (data: Buffer) => {
			totalBytes += data.length;

			// Start writing to temp file if exceeds threshold
			if (totalBytes > DEFAULT_MAX_BYTES && !tempFilePath) {
				const id = randomBytes(8).toString("hex");
				tempFilePath = join(tmpdir(), `pi-bash-${id}.log`);
				tempFileStream = createWriteStream(tempFilePath);
				for (const chunk of chunks) {
					tempFileStream.write(chunk);
				}
			}

			if (tempFileStream) {
				tempFileStream.write(data);
			}

			// Keep rolling buffer
			chunks.push(data);
			chunksBytes += data.length;
			while (chunksBytes > maxChunksBytes && chunks.length > 1) {
				const removed = chunks.shift()!;
				chunksBytes -= removed.length;
			}
		};

		child.stdout?.on("data", handleData);
		child.stderr?.on("data", handleData);

		child.on("close", (code) => {
			if (tempFileStream) {
				tempFileStream.end();
			}

			// Combine buffered chunks
			const fullBuffer = Buffer.concat(chunks);
			const fullOutput = stripAnsi(fullBuffer.toString("utf-8")).replace(/\r/g, "");
			const truncationResult = truncateTail(fullOutput);

			resolve({
				output: fullOutput,
				exitCode: code,
				truncationResult: truncationResult.truncated ? truncationResult : undefined,
				fullOutputPath: tempFilePath,
			});
		});

		child.on("error", (err) => {
			if (tempFileStream) {
				tempFileStream.end();
			}
			reject(err);
		});
	});
}

async function runRpcMode(
	agent: Agent,
	sessionManager: SessionManager,
	settingsManager: SettingsManager,
): Promise<void> {
	// Track if auto-compaction is in progress
	let autoCompactionInProgress = false;

	// Auto-compaction helper
	const checkAutoCompaction = async () => {
		if (autoCompactionInProgress) return;

		const settings = settingsManager.getCompactionSettings();
		if (!settings.enabled) return;

		// Get last non-aborted assistant message
		const messages = agent.state.messages;
		let lastAssistant: AssistantMessage | null = null;
		for (let i = messages.length - 1; i >= 0; i--) {
			const msg = messages[i];
			if (msg.role === "assistant") {
				const assistantMsg = msg as AssistantMessage;
				if (assistantMsg.stopReason !== "aborted") {
					lastAssistant = assistantMsg;
					break;
				}
			}
		}
		if (!lastAssistant) return;

		const contextTokens = calculateContextTokens(lastAssistant.usage);
		const contextWindow = agent.state.model.contextWindow;

		if (!shouldCompact(contextTokens, contextWindow, settings)) return;

		// Trigger auto-compaction
		autoCompactionInProgress = true;
		try {
			const apiKey = await getApiKeyForModel(agent.state.model);
			if (!apiKey) {
				throw new Error(`No API key for ${agent.state.model.provider}`);
			}

			const entries = sessionManager.loadEntries();
			const compactionEntry = await compact(entries, agent.state.model, settings, apiKey);

			sessionManager.saveCompaction(compactionEntry);
			const loaded = loadSessionFromEntries(sessionManager.loadEntries());
			agent.replaceMessages(loaded.messages);

			// Emit auto-compaction event
			console.log(JSON.stringify({ ...compactionEntry, auto: true }));
		} catch (error: unknown) {
			const message = error instanceof Error ? error.message : String(error);
			console.log(JSON.stringify({ type: "error", error: `Auto-compaction failed: ${message}` }));
		} finally {
			autoCompactionInProgress = false;
		}
	};

	// Subscribe to all events and output as JSON (same pattern as tui-renderer)
	agent.subscribe(async (event) => {
		console.log(JSON.stringify(event));

		// Save messages to session
		if (event.type === "message_end") {
			sessionManager.saveMessage(event.message);

			// Yield to microtask queue to allow agent state to update
			// (tui-renderer does this implicitly via await handleEvent)
			await Promise.resolve();

			// Check if we should initialize session now (after first user+assistant exchange)
			if (sessionManager.shouldInitializeSession(agent.state.messages)) {
				sessionManager.startSession(agent.state);
			}

			// Check for auto-compaction after assistant messages
			if (event.message.role === "assistant") {
				await checkAutoCompaction();
			}
		}
	});

	// Listen for JSON input on stdin
	const readline = await import("readline");
	const rl = readline.createInterface({
		input: process.stdin,
		output: process.stdout,
		terminal: false,
	});

	rl.on("line", async (line: string) => {
		try {
			const input = JSON.parse(line);

			// Handle different RPC commands
			if (input.type === "prompt" && input.message) {
				await agent.prompt(input.message, input.attachments);
			} else if (input.type === "abort") {
				agent.abort();
			} else if (input.type === "compact") {
				// Handle compaction request
				try {
					const apiKey = await getApiKeyForModel(agent.state.model);
					if (!apiKey) {
						throw new Error(`No API key for ${agent.state.model.provider}`);
					}

					const entries = sessionManager.loadEntries();
					const settings = settingsManager.getCompactionSettings();
					const compactionEntry = await compact(
						entries,
						agent.state.model,
						settings,
						apiKey,
						undefined,
						input.customInstructions,
					);

					// Save and reload
					sessionManager.saveCompaction(compactionEntry);
					const loaded = loadSessionFromEntries(sessionManager.loadEntries());
					agent.replaceMessages(loaded.messages);

					// Emit compaction event (compactionEntry already has type: "compaction")
					console.log(JSON.stringify(compactionEntry));
				} catch (error: any) {
					console.log(JSON.stringify({ type: "error", error: `Compaction failed: ${error.message}` }));
				}
			} else if (input.type === "bash" && input.command) {
				// Execute bash command and add to context
				try {
					const result = await executeRpcBashCommand(input.command);

					// Create bash execution message
					const bashMessage: BashExecutionMessage = {
						role: "bashExecution",
						command: input.command,
						output: result.truncationResult?.content || result.output,
						exitCode: result.exitCode,
						cancelled: false,
						truncated: result.truncationResult?.truncated || false,
						fullOutputPath: result.fullOutputPath,
						timestamp: Date.now(),
					};

					// Add to agent state and save to session
					agent.appendMessage(bashMessage);
					sessionManager.saveMessage(bashMessage);

					// Initialize session if needed (same logic as message_end handler)
					if (sessionManager.shouldInitializeSession(agent.state.messages)) {
						sessionManager.startSession(agent.state);
					}

					// Emit bash_end event with the message
					console.log(JSON.stringify({ type: "bash_end", message: bashMessage }));
				} catch (error: any) {
					console.log(JSON.stringify({ type: "error", error: `Bash command failed: ${error.message}` }));
				}
			}
		} catch (error: any) {
			// Output error as JSON
			console.log(JSON.stringify({ type: "error", error: error.message }));
		}
	});

	// Keep process alive
	return new Promise(() => {});
}

export async function main(args: string[]) {


Successfully replaced text in /Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/main-new.ts. Changed 9513 characters to 44 characters.

      ...
  807 		}
  808 	}
  809 }
  810
- 811 // runSingleShotMode removed - replaced by runPrintMode from ./modes/print-mode.ts
- 812 // executeRpcBashCommand removed - replaced by executeBash from ./core/bash-executor.ts
- 813 // runRpcMode removed - replaced by runRpcMode from ./modes/rpc-mode.ts
- 814
- 815 async function DELETED_runSingleShotMode(
- 816 	agent: Agent,
- 817 	_sessionManager: SessionManager,
- 818 	messages: string[],
- 819 	mode: "text" | "json",
- 820 	initialMessage?: string,
- 821 	initialAttachments?: Attachment[],
- 822 ): Promise<void> {
- 823 	// Load file-based slash commands for expansion
- 824 	const fileCommands = loadSlashCommands();
- 825
- 826 	if (mode === "json") {
- 827 		// Subscribe to all events and output as JSON
- 828 		agent.subscribe((event) => {
- 829 			// Output event as JSON (same format as session manager)
- 830 			console.log(JSON.stringify(event));
- 831 		});
- 832 	}
- 833
- 834 	// Send initial message with attachments if provided
- 835 	if (initialMessage) {
- 836 		await agent.prompt(expandSlashCommand(initialMessage, fileCommands), initialAttachments);
- 837 	}
- 838
- 839 	// Send remaining messages
- 840 	for (const message of messages) {
- 841 		await agent.prompt(expandSlashCommand(message, fileCommands));
- 842 	}
- 843
- 844 	// In text mode, only output the final assistant message
- 845 	if (mode === "text") {
- 846 		const lastMessage = agent.state.messages[agent.state.messages.length - 1];
- 847 		if (lastMessage.role === "assistant") {
- 848 			const assistantMsg = lastMessage as AssistantMessage;
- 849
- 850 			// Check for error/aborted and output error message
- 851 			if (assistantMsg.stopReason === "error" || assistantMsg.stopReason === "aborted") {
- 852 				console.error(assistantMsg.errorMessage || `Request ${assistantMsg.stopReason}`);
- 853 				process.exit(1);
- 854 			}
- 855
- 856 			for (const content of assistantMsg.content) {
- 857 				if (content.type === "text") {
- 858 					console.log(content.text);
- 859 				}
- 860 			}
- 861 		}
- 862 	}
- 863 }
- 864
- 865 /**
- 866  * Execute a bash command for RPC mode.
- 867  * Similar to tui-renderer's executeBashCommand but without streaming callbacks.
- 868  */
- 869 async function executeRpcBashCommand(command: string): Promise<{
- 870 	output: string;
- 871 	exitCode: number | null;
- 872 	truncationResult?: ReturnType<typeof truncateTail>;
- 873 	fullOutputPath?: string;
- 874 }> {
- 875 	return new Promise((resolve, reject) => {
- 876 		const { shell, args } = getShellConfig();
- 877 		const child = spawn(shell, [...args, command], {
- 878 			detached: true,
- 879 			stdio: ["ignore", "pipe", "pipe"],
- 880 		});
- 881
- 882 		const chunks: Buffer[] = [];
- 883 		let chunksBytes = 0;
- 884 		const maxChunksBytes = DEFAULT_MAX_BYTES * 2;
- 885
- 886 		let tempFilePath: string | undefined;
- 887 		let tempFileStream: ReturnType<typeof createWriteStream> | undefined;
- 888 		let totalBytes = 0;
- 889
- 890 		const handleData = (data: Buffer) => {
- 891 			totalBytes += data.length;
- 892
- 893 			// Start writing to temp file if exceeds threshold
- 894 			if (totalBytes > DEFAULT_MAX_BYTES && !tempFilePath) {
- 895 				const id = randomBytes(8).toString("hex");
- 896 				tempFilePath = join(tmpdir(), `pi-bash-${id}.log`);
- 897 				tempFileStream = createWriteStream(tempFilePath);
- 898 				for (const chunk of chunks) {
- 899 					tempFileStream.write(chunk);
- 900 				}
- 901 			}
- 902
- 903 			if (tempFileStream) {
- 904 				tempFileStream.write(data);
- 905 			}
- 906
- 907 			// Keep rolling buffer
- 908 			chunks.push(data);
- 909 			chunksBytes += data.length;
- 910 			while (chunksBytes > maxChunksBytes && chunks.length > 1) {
- 911 				const removed = chunks.shift()!;
- 912 				chunksBytes -= removed.length;
- 913 			}
- 914 		};
- 915
- 916 		child.stdout?.on("data", handleData);
- 917 		child.stderr?.on("data", handleData);
- 918
- 919 		child.on("close", (code) => {
- 920 			if (tempFileStream) {
- 921 				tempFileStream.end();
- 922 			}
- 923
- 924 			// Combine buffered chunks
- 925 			const fullBuffer = Buffer.concat(chunks);
- 926 			const fullOutput = stripAnsi(fullBuffer.toString("utf-8")).replace(/\r/g, "");
- 927 			const truncationResult = truncateTail(fullOutput);
- 928
- 929 			resolve({
- 930 				output: fullOutput,
- 931 				exitCode: code,
- 932 				truncationResult: truncationResult.truncated ? truncationResult : undefined,
- 933 				fullOutputPath: tempFilePath,
- 934 			});
- 935 		});
- 936
- 937 		child.on("error", (err) => {
- 938 			if (tempFileStream) {
- 939 				tempFileStream.end();
- 940 			}
- 941 			reject(err);
- 942 		});
- 943 	});
- 944 }
- 945
- 946 async function runRpcMode(
- 947 	agent: Agent,
- 948 	sessionManager: SessionManager,
- 949 	settingsManager: SettingsManager,
- 950 ): Promise<void> {
- 951 	// Track if auto-compaction is in progress
- 952 	let autoCompactionInProgress = false;
- 953
- 954 	// Auto-compaction helper
- 955 	const checkAutoCompaction = async () => {
- 956 		if (autoCompactionInProgress) return;
- 957
- 958 		const settings = settingsManager.getCompactionSettings();
- 959 		if (!settings.enabled) return;
- 960
- 961 		// Get last non-aborted assistant message
- 962 		const messages = agent.state.messages;
- 963 		let lastAssistant: AssistantMessage | null = null;
- 964 		for (let i = messages.length - 1; i >= 0; i--) {
- 965 			const msg = messages[i];
- 966 			if (msg.role === "assistant") {
- 967 				const assistantMsg = msg as AssistantMessage;
- 968 				if (assistantMsg.stopReason !== "aborted") {
- 969 					lastAssistant = assistantMsg;
- 970 					break;
- 971 				}
- 972 			}
- 973 		}
- 974 		if (!lastAssistant) return;
- 975
- 976 		const contextTokens = calculateContextTokens(lastAssistant.usage);
- 977 		const contextWindow = agent.state.model.contextWindow;
- 978
- 979 		if (!shouldCompact(contextTokens, contextWindow, settings)) return;
- 980
- 981 		// Trigger auto-compaction
- 982 		autoCompactionInProgress = true;
- 983 		try {
- 984 			const apiKey = await getApiKeyForModel(agent.state.model);
- 985 			if (!apiKey) {
- 986 				throw new Error(`No API key for ${agent.state.model.provider}`);
- 987 			}
- 988
- 989 			const entries = sessionManager.loadEntries();
- 990 			const compactionEntry = await compact(entries, agent.state.model, settings, apiKey);
- 991
- 992 			sessionManager.saveCompaction(compactionEntry);
- 993 			const loaded = loadSessionFromEntries(sessionManager.loadEntries());
- 994 			agent.replaceMessages(loaded.messages);
- 995
- 996 			// Emit auto-compaction event
- 997 			console.log(JSON.stringify({ ...compactionEntry, auto: true }));
- 998 		} catch (error: unknown) {
- 999 			const message = error instanceof Error ? error.message : String(error);
-1000 			console.log(JSON.stringify({ type: "error", error: `Auto-compaction failed: ${message}` }));
-1001 		} finally {
-1002 			autoCompactionInProgress = false;
-1003 		}
-1004 	};
-1005
-1006 	// Subscribe to all events and output as JSON (same pattern as tui-renderer)
-1007 	agent.subscribe(async (event) => {
-1008 		console.log(JSON.stringify(event));
-1009
-1010 		// Save messages to session
-1011 		if (event.type === "message_end") {
-1012 			sessionManager.saveMessage(event.message);
-1013
-1014 			// Yield to microtask queue to allow agent state to update
-1015 			// (tui-renderer does this implicitly via await handleEvent)
-1016 			await Promise.resolve();
-1017
-1018 			// Check if we should initialize session now (after first user+assistant exchange)
-1019 			if (sessionManager.shouldInitializeSession(agent.state.messages)) {
-1020 				sessionManager.startSession(agent.state);
-1021 			}
-1022
-1023 			// Check for auto-compaction after assistant messages
-1024 			if (event.message.role === "assistant") {
-1025 				await checkAutoCompaction();
-1026 			}
-1027 		}
-1028 	});
-1029
-1030 	// Listen for JSON input on stdin
-1031 	const readline = await import("readline");
-1032 	const rl = readline.createInterface({
-1033 		input: process.stdin,
-1034 		output: process.stdout,
-1035 		terminal: false,
-1036 	});
-1037
-1038 	rl.on("line", async (line: string) => {
-1039 		try {
-1040 			const input = JSON.parse(line);
-1041
-1042 			// Handle different RPC commands
-1043 			if (input.type === "prompt" && input.message) {
-1044 				await agent.prompt(input.message, input.attachments);
-1045 			} else if (input.type === "abort") {
-1046 				agent.abort();
-1047 			} else if (input.type === "compact") {
-1048 				// Handle compaction request
-1049 				try {
-1050 					const apiKey = await getApiKeyForModel(agent.state.model);
-1051 					if (!apiKey) {
-1052 						throw new Error(`No API key for ${agent.state.model.provider}`);
-1053 					}
-1054
-1055 					const entries = sessionManager.loadEntries();
-1056 					const settings = settingsManager.getCompactionSettings();
-1057 					const compactionEntry = await compact(
-1058 						entries,
-1059 						agent.state.model,
-1060 						settings,
-1061 						apiKey,
-1062 						undefined,
-1063 						input.customInstructions,
-1064 					);
-1065
-1066 					// Save and reload
-1067 					sessionManager.saveCompaction(compactionEntry);
-1068 					const loaded = loadSessionFromEntries(sessionManager.loadEntries());
-1069 					agent.replaceMessages(loaded.messages);
-1070
-1071 					// Emit compaction event (compactionEntry already has type: "compaction")
-1072 					console.log(JSON.stringify(compactionEntry));
-1073 				} catch (error: any) {
-1074 					console.log(JSON.stringify({ type: "error", error: `Compaction failed: ${error.message}` }));
-1075 				}
-1076 			} else if (input.type === "bash" && input.command) {
-1077 				// Execute bash command and add to context
-1078 				try {
-1079 					const result = await executeRpcBashCommand(input.command);
-1080
-1081 					// Create bash execution message
-1082 					const bashMessage: BashExecutionMessage = {
-1083 						role: "bashExecution",
-1084 						command: input.command,
-1085 						output: result.truncationResult?.content || result.output,
-1086 						exitCode: result.exitCode,
-1087 						cancelled: false,
-1088 						truncated: result.truncationResult?.truncated || false,
-1089 						fullOutputPath: result.fullOutputPath,
-1090 						timestamp: Date.now(),
-1091 					};
-1092
-1093 					// Add to agent state and save to session
-1094 					agent.appendMessage(bashMessage);
-1095 					sessionManager.saveMessage(bashMessage);
-1096
-1097 					// Initialize session if needed (same logic as message_end handler)
-1098 					if (sessionManager.shouldInitializeSession(agent.state.messages)) {
-1099 						sessionManager.startSession(agent.state);
-1100 					}
-1101
-1102 					// Emit bash_end event with the message
-1103 					console.log(JSON.stringify({ type: "bash_end", message: bashMessage }));
-1104 				} catch (error: any) {
-1105 					console.log(JSON.stringify({ type: "error", error: `Bash command failed: ${error.message}` }));
-1106 				}
-1107 			}
-1108 		} catch (error: any) {
-1109 			// Output error as JSON
-1110 			console.log(JSON.stringify({ type: "error", error: error.message }));
-1111 		}
-1112 	});
-1113
-1114 	// Keep process alive
-1115 	return new Promise(() => {});
-1116 }
-1117
 1118 export async function main(args: string[]) {
 1119 	const parsed = parseArgs(args);
 1120
 1121 	if (parsed.help) {
      ...


Now let me find where the modes are routed and update them. Let me search for where runRpcMode and runSingleShotMode were being called:

bash

cd /Users/badlogic/workspaces/pi-mono && grep -n "runRpcMode\|runSingleShotMode\|runPrintMode" packages/coding-agent/src/main-new.ts


22:import { runPrintMode, runRpcMode } from "./modes/index.js";
1169:		await runRpcMode(agent, sessionManager, settingsManager);
1234:		await runSingleShotMode(agent, sessionManager, parsed.messages, mode, initialMessage, initialAttachments);


			for (const { path: filePath } of contextFiles) {
				console.log(chalk.dim(`  - ${filePath}`));
			}
		}
	}

	// Route to appropriate mode
	if (mode === "rpc") {
		// RPC mode - headless operation
		await runRpcMode(agent, sessionManager, settingsManager);
	} else if (isInteractive) {
		// Check for new version in the background (don't block startup)
		const versionCheckPromise = checkForNewVersion(VERSION).catch(() => null);

		// Check if we should show changelog (only in interactive mode, only for new sessions)
		let changelogMarkdown: string | null = null;
		if (!parsed.continue && !parsed.resume) {
			const lastVersion = settingsManager.getLastChangelogVersion();

			// Check if we need to show changelog
			if (!lastVersion) {
				// First run - show all entries
				const changelogPath = getChangelogPath();
				const entries = parseChangelog(changelogPath);
				if (entries.length > 0) {
					changelogMarkdown = entries.map((e) => e.content).join("\n\n");
					settingsManager.setLastChangelogVersion(VERSION);
				}
			} else {
				// Parse current and last versions
				const changelogPath = getChangelogPath();
				const entries = parseChangelog(changelogPath);
				const newEntries = getNewEntries(entries, lastVersion);

				if (newEntries.length > 0) {
					changelogMarkdown = newEntries.map((e) => e.content).join("\n\n");
					settingsManager.setLastChangelogVersion(VERSION);
				}
			}
		}

		// Show model scope if provided
		if (scopedModels.length > 0) {
			const modelList = scopedModels
				.map((sm) => {
					const thinkingStr = sm.thinkingLevel !== "off" ? `:${sm.thinkingLevel}` : "";
					return `${sm.model.id}${thinkingStr}`;
				})
				.join(", ");
			console.log(chalk.dim(`Model scope: ${modelList} ${chalk.gray("(Ctrl+P to cycle)")}`));
		}

		// Ensure fd tool is available for file autocomplete
		const fdPath = await ensureTool("fd");

		// Interactive mode - use TUI (may have initial messages from CLI args)
		const collapseChangelog = settingsManager.getCollapseChangelog();
		await runInteractiveMode(
			agent,
			sessionManager,
			settingsManager,
			VERSION,
			changelogMarkdown,
			collapseChangelog,
			modelFallbackMessage,
			versionCheckPromise,
			scopedModels,
			parsed.messages,
			initialMessage,
			initialAttachments,
			fdPath,
		);
	} else {
		// Non-interactive mode (--print flag or --mode flag)
		await runSingleShotMode(agent, sessionManager, parsed.messages, mode, initialMessage, initialAttachments);
	}
}


Now I need to:
1. Create `AgentSession` instance before routing
2. Update the mode calls to use the session

Let me find a good place to create the session - after the agent is created:

cd /Users/badlogic/workspaces/pi-mono && grep -n "const agent = new Agent" packages/coding-agent/src/main-new.ts


1080:	const agent = new Agent({


	// Determine which tools to use
	const selectedTools = parsed.tools ? parsed.tools.map((name) => allTools[name]) : codingTools;

	// Create agent (initialModel can be null in interactive mode)
	const agent = new Agent({
		initialState: {
			systemPrompt,
			model: initialModel as any, // Can be null
			thinkingLevel: initialThinking,
			tools: selectedTools,
		},
		messageTransformer,
		queueMode: settingsManager.getQueueMode(),
		transport: new ProviderTransport({
			// Dynamic API key lookup based on current model's provider
			getApiKey: async () => {
				const currentModel = agent.state.model;
				if (!currentModel) {
					throw new Error("No model selected");
				}

				// Try CLI override first
				if (parsed.apiKey) {
					return parsed.apiKey;
				}

				// Use model-specific key lookup
				const key = await getApiKeyForModel(currentModel);
				if (!key) {
					throw new Error(
						`No API key found for provider "${currentModel.provider}". Please set the appropriate environment variable or update ${getModelsPath()}`,
					);
				}
				return key;
			},
		}),
	});

	// If initial thinking was requested but model doesn't support it, silently reset to off
	if (initialThinking !== "off" && initialModel && !initialModel.reasoning) {
		agent.setThinkingLevel("off");
	}

	// Track if we had to fall back from saved model (to show in chat later)
	let modelFallbackMessage: string | null = null;

	// Load previous messages if continuing or resuming
	if (parsed.continue || parsed.resume) {
		const messages = sessionManager.loadMessages();

[113 more lines in file. Use offset=1125 to continue]


Let me see where the routing section starts to understand the full context:


				}
			}
		}
	}

	// Log loaded context files (they're already in the system prompt)
	if (shouldPrintMessages && !parsed.continue && !parsed.resume) {
		const contextFiles = loadProjectContextFiles();
		if (contextFiles.length > 0) {
			console.log(chalk.dim("Loaded project context from:"));
			for (const { path: filePath } of contextFiles) {
				console.log(chalk.dim(`  - ${filePath}`));
			}
		}
	}

	// Route to appropriate mode
	if (mode === "rpc") {
		// RPC mode - headless operation
		await runRpcMode(agent, sessionManager, settingsManager);

[68 more lines in file. Use offset=1170 to continue]


Now let me add the AgentSession creation and update the mode routing:

edit

	// Route to appropriate mode
	if (mode === "rpc") {
		// RPC mode - headless operation
		await runRpcMode(agent, sessionManager, settingsManager);
	} else if (isInteractive) {

	// Create AgentSession for non-interactive modes
	// (Interactive mode will create its own session when we refactor TuiRenderer)
	const fileCommands = loadSlashCommands();

	// Route to appropriate mode
	if (mode === "rpc") {
		// RPC mode - headless operation
		const session = new AgentSession({
			agent,
			sessionManager,
			settingsManager,
			scopedModels,
			fileCommands,
		});
		await runRpcMode(session);
	} else if (isInteractive) {


Successfully replaced text in /Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/main-new.ts. Changed 176 characters to 445 characters.

      ...
 1162 			}
 1163 		}
 1164 	}
 1165
+1166 	// Create AgentSession for non-interactive modes
+1167 	// (Interactive mode will create its own session when we refactor TuiRenderer)
+1168 	const fileCommands = loadSlashCommands();
+1169
 1166 	// Route to appropriate mode
 1167 	if (mode === "rpc") {
 1168 		// RPC mode - headless operation
-1169 		await runRpcMode(agent, sessionManager, settingsManager);
+1173 		const session = new AgentSession({
+1174 			agent,
+1175 			sessionManager,
+1176 			settingsManager,
+1177 			scopedModels,
+1178 			fileCommands,
+1179 		});
+1180 		await runRpcMode(session);
 1170 	} else if (isInteractive) {
 1171 		// Check for new version in the background (don't block startup)
 1172 		const versionCheckPromise = checkForNewVersion(VERSION).catch(() => null);
 1173
      ...


	} else {
		// Non-interactive mode (--print flag or --mode flag)
		await runSingleShotMode(agent, sessionManager, parsed.messages, mode, initialMessage, initialAttachments);
	}
}

	} else {
		// Non-interactive mode (--print flag or --mode flag)
		const session = new AgentSession({
			agent,
			sessionManager,
			settingsManager,
			scopedModels,
			fileCommands,
		});
		await runPrintMode(session, mode, parsed.messages, initialMessage, initialAttachments);
	}
}


Successfully replaced text in /Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/main-new.ts. Changed 179 characters to 286 characters.

      ...
 1241 			fdPath,
 1242 		);
 1243 	} else {
 1244 		// Non-interactive mode (--print flag or --mode flag)
-1245 		await runSingleShotMode(agent, sessionManager, parsed.messages, mode, initialMessage, initialAttachments);
+1245 		const session = new AgentSession({
+1246 			agent,
+1247 			sessionManager,
+1248 			settingsManager,
+1249 			scopedModels,
+1250 			fileCommands,
+1251 		});
+1252 		await runPrintMode(session, mode, parsed.messages, initialMessage, initialAttachments);
 1246 	}
 1247 }


Now let me check for any remaining issues:

bash

cd /Users/badlogic/workspaces/pi-mono && npm run check 2>&1 | head -50


> pi-monorepo@0.0.3 check
> biome check --write . && npm run check --workspaces --if-present && tsgo --noEmit

Checked 236 files in 122ms. No fixes applied.

> @mariozechner/pi-agent-core@0.14.2 check
> tsgo --noEmit

../coding-agent/src/main-new.ts(499,20): error TS2304: Cannot find name 'join'.
../coding-agent/src/main-new.ts(779,23): error TS2552: Cannot find name 'expandSlashCommand'. Did you mean 'loadSlashCommands'?
../coding-agent/src/main-new.ts(789,23): error TS2552: Cannot find name 'expandSlashCommand'. Did you mean 'loadSlashCommands'?
npm error Lifecycle script `check` failed with error:
npm error code 2
npm error path /Users/badlogic/workspaces/pi-mono/packages/agent
npm error workspace @mariozechner/pi-agent-core@0.14.2
npm error location /Users/badlogic/workspaces/pi-mono/packages/agent
npm error command failed
npm error command sh -c tsgo --noEmit

> @mariozechner/pi-ai@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 36 files in 40ms. No fixes applied.
../coding-agent/src/main-new.ts(499,20): error TS2304: Cannot find name 'join'.
../coding-agent/src/main-new.ts(779,23): error TS2552: Cannot find name 'expandSlashCommand'. Did you mean 'loadSlashCommands'?
../coding-agent/src/main-new.ts(789,23): error TS2552: Cannot find name 'expandSlashCommand'. Did you mean 'loadSlashCommands'?
npm error Lifecycle script `check` failed with error:
npm error code 2
npm error path /Users/badlogic/workspaces/pi-mono/packages/ai
npm error workspace @mariozechner/pi-ai@0.14.2
npm error location /Users/badlogic/workspaces/pi-mono/packages/ai
npm error command failed
npm error command sh -c biome check --write . && tsgo --noEmit

> @mariozechner/pi-coding-agent@0.14.2 check
> tsgo --noEmit

src/main-new.ts(499,20): error TS2304: Cannot find name 'join'.
src/main-new.ts(779,23): error TS2552: Cannot find name 'expandSlashCommand'. Did you mean 'loadSlashCommands'?
src/main-new.ts(789,23): error TS2552: Cannot find name 'expandSlashCommand'. Did you mean 'loadSlashCommands'?
npm error Lifecycle script `check` failed with error:
npm error code 2
npm error path /Users/badlogic/workspaces/pi-mono/packages/coding-agent
npm error workspace @mariozechner/pi-coding-agent@0.14.2
npm error location /Users/badlogic/workspaces/pi-mono/packages/coding-agent
npm error command failed
npm error command sh -c tsgo --noEmit


I need to add back `join` from path and `expandSlashCommand`. Let me also check what those lines are for:


 */
function loadContextFileFromDir(dir: string): { path: string; content: string } | null {
	const candidates = ["AGENTS.md", "CLAUDE.md"];
	for (const filename of candidates) {
		const filePath = join(dir, filename);
		if (existsSync(filePath)) {
			try {
				return {
					path: filePath,
					content: readFileSync(filePath, "utf-8"),

[751 more lines in file. Use offset=505 to continue]


	// Process initial message with attachments if provided (from @file args)
	if (initialMessage) {
		try {
			await agent.prompt(expandSlashCommand(initialMessage, fileCommands), initialAttachments);
		} catch (error: unknown) {
			const errorMessage = error instanceof Error ? error.message : "Unknown error occurred";
			renderer.showError(errorMessage);
		}
	}

	// Process remaining initial messages if provided (from CLI args)
	for (const message of initialMessages) {
		try {
			await agent.prompt(expandSlashCommand(message, fileCommands));
		} catch (error: unknown) {
			const errorMessage = error instanceof Error ? error.message : "Unknown error occurred";
			renderer.showError(errorMessage);
		}
	}

[461 more lines in file. Use offset=795 to continue]


These are in runInteractiveMode. Let me add the missing imports:

edit

import { existsSync, readFileSync, statSync } from "fs";
import { homedir } from "os";
import { extname, resolve } from "path";

import { existsSync, readFileSync, statSync } from "fs";
import { homedir } from "os";
import { extname, join, resolve } from "path";


Successfully replaced text in /Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/main-new.ts. Changed 127 characters to 133 characters.

      ...
    3 import { ProcessTerminal, TUI } from "@mariozechner/pi-tui";
    4 import chalk from "chalk";
    5 import { existsSync, readFileSync, statSync } from "fs";
    6 import { homedir } from "os";
-   7 import { extname, resolve } from "path";
+   7 import { extname, join, resolve } from "path";
    8 import { getChangelogPath, getNewEntries, parseChangelog } from "./changelog.js";
    9 import {
   10 	APP_NAME,
   11 	CONFIG_DIR_NAME,
      ...


import { loadSlashCommands } from "./slash-commands.js";

import { expandSlashCommand, loadSlashCommands } from "./slash-commands.js";


Successfully replaced text in /Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/main-new.ts. Changed 56 characters to 76 characters.

      ...
   21 import { findModel, getApiKeyForModel, getAvailableModels } from "./model-config.js";
   22 import { runPrintMode, runRpcMode } from "./modes/index.js";
   23 import { SessionManager } from "./session-manager.js";
   24 import { SettingsManager } from "./settings-manager.js";
-  25 import { loadSlashCommands } from "./slash-commands.js";
+  25 import { expandSlashCommand, loadSlashCommands } from "./slash-commands.js";
   26 import { initTheme } from "./theme/theme.js";
   27 import { allTools, codingTools, type ToolName } from "./tools/index.js";
   28 import { ensureTool } from "./tools-manager.js";
   29 import { SessionSelectorComponent } from "./tui/session-selector.js";
      ...


bash

cd /Users/badlogic/workspaces/pi-mono && npm run check 2>&1 | head -30


> pi-monorepo@0.0.3 check
> biome check --write . && npm run check --workspaces --if-present && tsgo --noEmit

Checked 236 files in 142ms. No fixes applied.

> @mariozechner/pi-agent-core@0.14.2 check
> tsgo --noEmit

> @mariozechner/pi-ai@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 36 files in 44ms. No fixes applied.

> @mariozechner/pi-coding-agent@0.14.2 check
> tsgo --noEmit

> @mariozechner/pi-mom@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 12 files in 14ms. No fixes applied.

> @mariozechner/pi@0.14.2 check
> biome check --write .

Checked 10 files in 18ms. No fixes applied.

> @mariozechner/pi-proxy@0.14.2 check


Let me verify it passed:

cd /Users/badlogic/workspaces/pi-mono && npm run check


> pi-monorepo@0.0.3 check
> biome check --write . && npm run check --workspaces --if-present && tsgo --noEmit

Checked 236 files in 128ms. No fixes applied.

> @mariozechner/pi-agent-core@0.14.2 check
> tsgo --noEmit

> @mariozechner/pi-ai@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 36 files in 48ms. No fixes applied.

> @mariozechner/pi-coding-agent@0.14.2 check
> tsgo --noEmit

> @mariozechner/pi-mom@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 12 files in 14ms. No fixes applied.

> @mariozechner/pi@0.14.2 check
> biome check --write .

Checked 10 files in 19ms. No fixes applied.

> @mariozechner/pi-proxy@0.14.2 check
> biome check --write .

Checked 3 files in 4ms. No fixes applied.

> @mariozechner/pi-tui@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 22 files in 23ms. No fixes applied.

> @mariozechner/pi-web-ui@0.14.2 check
> tsc --noEmit && cd example && tsc --noEmit

> pi-web-ui-example@1.2.2 check
> tsc --noEmit


Now create cli-new.ts:

write

#!/usr/bin/env node
/**
 * CLI entry point for the refactored coding agent.
 * Uses main-new.ts with AgentSession and new mode modules.
 *
 * Test with: npx tsx src/cli-new.ts [args...]
 */
import { main } from "./main-new.js";

main(process.argv.slice(2));


Successfully wrote 258 bytes to /Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/cli-new.ts


> pi-monorepo@0.0.3 check
> biome check --write . && npm run check --workspaces --if-present && tsgo --noEmit

Checked 237 files in 120ms. No fixes applied.

> @mariozechner/pi-agent-core@0.14.2 check
> tsgo --noEmit

> @mariozechner/pi-ai@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 36 files in 39ms. No fixes applied.

> @mariozechner/pi-coding-agent@0.14.2 check
> tsgo --noEmit

> @mariozechner/pi-mom@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 12 files in 14ms. No fixes applied.

> @mariozechner/pi@0.14.2 check
> biome check --write .

Checked 10 files in 17ms. No fixes applied.

> @mariozechner/pi-proxy@0.14.2 check
> biome check --write .

Checked 3 files in 3ms. No fixes applied.

> @mariozechner/pi-tui@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 22 files in 23ms. No fixes applied.

> @mariozechner/pi-web-ui@0.14.2 check
> tsc --noEmit && cd example && tsc --noEmit

> pi-web-ui-example@1.2.2 check
> tsc --noEmit


Let me compare line counts between old and new:

bash

cd /Users/badlogic/workspaces/pi-mono/packages/coding-agent && wc -l src/main.ts src/main-new.ts


    1543 src/main.ts
    1254 src/main-new.ts
    2797 total


Good. We removed ~290 lines from main by extracting the duplicate code to the mode modules.

Now update the checkboxes:

edit

- [ ] Copy main.ts to main-new.ts
- [ ] Remove `runSingleShotMode()` from main-new.ts
- [ ] Remove `runRpcMode()` from main-new.ts
- [ ] Remove `executeRpcBashCommand()` from main-new.ts
- [ ] Import and use `runPrintMode` from modes
- [ ] Import and use `runRpcMode` from modes
- [ ] Create `AgentSession` in main()
- [ ] Update mode routing to use new functions
- [ ] Create cli-new.ts
- [ ] Verify with `npm run check`
- [ ] Manual test all three modes via cli-new.ts

- [x] Copy main.ts to main-new.ts
- [x] Remove `runSingleShotMode()` from main-new.ts
- [x] Remove `runRpcMode()` from main-new.ts
- [x] Remove `executeRpcBashCommand()` from main-new.ts
- [x] Import and use `runPrintMode` from modes
- [x] Import and use `runRpcMode` from modes
- [x] Create `AgentSession` in main()
- [x] Update mode routing to use new functions
- [x] Create cli-new.ts
- [x] Verify with `npm run check`
- [ ] Manual test all three modes via cli-new.ts


Successfully replaced text in /Users/badlogic/workspaces/pi-mono/packages/coding-agent/docs/refactor.md. Changed 472 characters to 472 characters.

      ...
 1389 2. Manual test: `npx tsx src/cli-new.ts -p "hello"` works
 1390 3. Manual test: `npx tsx src/cli-new.ts --mode json "hello"` works
 1391 4. Manual test: `npx tsx src/cli-new.ts --mode rpc` works
 1392
-1393 - [ ] Copy main.ts to main-new.ts
-1394 - [ ] Remove `runSingleShotMode()` from main-new.ts
-1395 - [ ] Remove `runRpcMode()` from main-new.ts
-1396 - [ ] Remove `executeRpcBashCommand()` from main-new.ts
-1397 - [ ] Import and use `runPrintMode` from modes
-1398 - [ ] Import and use `runRpcMode` from modes
-1399 - [ ] Create `AgentSession` in main()
-1400 - [ ] Update mode routing to use new functions
-1401 - [ ] Create cli-new.ts
-1402 - [ ] Verify with `npm run check`
+1393 - [x] Copy main.ts to main-new.ts
+1394 - [x] Remove `runSingleShotMode()` from main-new.ts
+1395 - [x] Remove `runRpcMode()` from main-new.ts
+1396 - [x] Remove `executeRpcBashCommand()` from main-new.ts
+1397 - [x] Import and use `runPrintMode` from modes
+1398 - [x] Import and use `runRpcMode` from modes
+1399 - [x] Create `AgentSession` in main()
+1400 - [x] Update mode routing to use new functions
+1401 - [x] Create cli-new.ts
+1402 - [x] Verify with `npm run check`
 1403 - [ ] Manual test all three modes via cli-new.ts
 1404
 1405 ---
 1406
      ...


bash

cd /Users/badlogic/workspaces/pi-mono && git add -A && git commit -m "WP14: Create main-new.ts and cli-new.ts using AgentSession and new modes"


Running formatting, linting, and type checking...

> pi-monorepo@0.0.3 check
> biome check --write . && npm run check --workspaces --if-present && tsgo --noEmit

Checked 237 files in 123ms. No fixes applied.

> @mariozechner/pi-agent-core@0.14.2 check
> tsgo --noEmit

> @mariozechner/pi-ai@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 36 files in 39ms. No fixes applied.

> @mariozechner/pi-coding-agent@0.14.2 check
> tsgo --noEmit

> @mariozechner/pi-mom@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 12 files in 14ms. No fixes applied.

> @mariozechner/pi@0.14.2 check
> biome check --write .

Checked 10 files in 18ms. No fixes applied.

> @mariozechner/pi-proxy@0.14.2 check
> biome check --write .

Checked 3 files in 3ms. No fixes applied.

> @mariozechner/pi-tui@0.14.2 check
> biome check --write . && tsgo --noEmit

Checked 22 files in 23ms. No fixes applied.

> @mariozechner/pi-web-ui@0.14.2 check
> tsc --noEmit && cd example && tsc --noEmit

> pi-web-ui-example@1.2.2 check
> tsc --noEmit

✅ All pre-commit checks passed!
[refactor e9f6de7] WP14: Create main-new.ts and cli-new.ts using AgentSession and new modes
 3 files changed, 1274 insertions(+), 10 deletions(-)
 create mode 100644 packages/coding-agent/src/cli-new.ts
 create mode 100644 packages/coding-agent/src/main-new.ts


We've completed WP1-WP14. Let me summarize our progress:

cd /Users/badlogic/workspaces/pi-mono && git log --oneline refactor | head -20


e9f6de7 WP14: Create main-new.ts and cli-new.ts using AgentSession and new modes
7890fb8 WP13: Create modes/index.ts barrel export
e7c71e7 WP12: Create rpc-mode.ts
c0996a1 WP11: Create print-mode.ts
934c2bc WP9+WP10: Add AgentSession session management and utility methods
94ff0b0 WP8: Add AgentSession bash execution
8d6d2dd WP7: Add AgentSession compaction (manual + auto), fix listener preservation
0119d76 WP5+WP6: Add AgentSession model, thinking level, and queue mode management
d08e1e5 WP4: Add AgentSession prompting methods (prompt, queue, abort, reset)
eba196f WP3: Add AgentSession event subscription with session persistence
29d96ab WP2: Create AgentSession basic structure + update plan for keep-old-code strategy
3f30550 WP1: Create bash-executor.ts with unified bash execution
cceb444 Add queue mode to AgentSession API, clarify setters vs getters
4197b0c Fix: use AppMessage[] instead of Message[] in AgentSession
1507f8b Add refactoring plan for coding-agent
d56a046 use only model id for fuzzy filtering in model selector (#151)
33a2bcf Release v0.14.2
ad42ebf Fix crash when bash mode outputs binary data
a054fec Release v0.14.1
238c5d3 Fix tsgo type issues: update tsgo, fix ReasoningEffort import, remove broken enum-test


Excellent progress! We've completed WP1-WP14:

**Completed:**
- WP1-WP10: `AgentSession` (885 lines) with all shared logic
- WP11-WP12: `print-mode.ts` and `rpc-mode.ts`
- WP13: modes barrel export
- WP14: `main-new.ts` and `cli-new.ts`

**Remaining:**
- WP15: Create InteractiveMode (refactor TuiRenderer to use AgentSession)
- WP16: Update main-new.ts runInteractiveMode
- WP17: (Optional) Move TUI components
- WP18-WP20: Setup extraction and cleanup

The next big task is WP15 which involves creating `InteractiveMode` based on `TuiRenderer` but using `AgentSession`. This is the largest remaining work package.

Would you like me to continue with WP15, or would you prefer to test the current changes first (print mode and RPC mode should be testable via `npx tsx src/cli-new.ts`)?


Summary:
# Context Checkpoint: Coding Agent Refactoring

## Branch
`refactor` in `/Users/badlogic/workspaces/pi-mono`

## Goal
Refactor `coding-agent` to eliminate code duplication between three run modes (interactive, print/json, rpc) by creating a shared `AgentSession` abstraction.

## Key Decisions Made
1. **Keep old code for reference** - Create new files (`main-new.ts`, `cli-new.ts`) instead of modifying existing ones, allowing parallel comparison
2. **AgentSession is the core abstraction** - All agent/session logic lives here, modes are thin I/O layers on top
3. **Listeners persist across operations** - `_disconnectFromAgent()` and `_reconnectToAgent()` are private; listeners survive reset/compact/switchSession. Only `dispose()` clears them.
4. **No `tokensAfter` in CompactionEntry** - The existing type only has `tokensBefore`, so `CompactionResult` reflects that

## Completed Work Packages (WP1-WP13)

| WP | Description | Status |
|----|-------------|--------|
| WP1 | bash-executor.ts | ✅ |
| WP2 | AgentSession basic structure | ✅ |
| WP3 | Event subscription + session persistence | ✅ |
| WP4 | Prompting (prompt, queue, abort, reset) | ✅ |
| WP5 | Model management (setModel, cycleModel) | ✅ |
| WP6 | Thinking level + queue mode | ✅ |
| WP7 | Compaction (manual + auto) | ✅ |
| WP8 | Bash execution | ✅ |
| WP9 | Session management (switch, branch, stats, export) | ✅ |
| WP10 | Utilities (getLastAssistantText) | ✅ |
| WP11 | print-mode.ts | ✅ |
| WP12 | rpc-mode.ts | ✅ |
| WP13 | modes/index.ts barrel | ✅ |

## Files Created/Modified

**New files:**
- `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/core/agent-session.ts` (885 lines)
- `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/core/bash-executor.ts` (177 lines)
- `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/core/index.ts`
- `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/modes/print-mode.ts`
- `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/modes/rpc-mode.ts`
- `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/modes/index.ts`
- `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/docs/refactor.md` (full plan with checkboxes)

**Reference files (old code to extract from):**
- `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/main.ts` (~1100 lines)
- `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/src/tui/tui-renderer.ts` (~2400 lines)

## Next Steps (WP14-WP20)

### WP14: Create main-new.ts (NEXT)
- Copy `main.ts` to `main-new.ts`
- Remove `runSingleShotMode()`, `runRpcMode()`, `executeRpcBashCommand()`
- Create `AgentSession` instance after agent setup
- Import and use `runPrintMode`, `runRpcMode` from `./modes`
- Create `cli-new.ts` pointing to `main-new.ts`
- Test via `npx tsx src/cli-new.ts`

### WP15: Create InteractiveMode
- Create `src/modes/interactive/interactive-mode.ts` based on `tui-renderer.ts`
- Rename class `TuiRenderer` → `InteractiveMode`
- Change constructor to accept `AgentSession` instead of individual params
- Replace direct agent/sessionManager/settingsManager calls with AgentSession methods
- Keep imports pointing to `../../tui/` for existing components

### WP16-WP20: Integration and cleanup
See `/Users/badlogic/workspaces/pi-mono/packages/coding-agent/docs/refactor.md` for full details

## AgentSession Key API
```typescript
class AgentSession {
  // State
  get model(), get thinkingLevel(), get isStreaming(), get messages()

  // Events
  subscribe(listener): () => void  // returns unsubscribe
  dispose()  // full cleanup

  // Prompting
  prompt(text, options?), queueMessage(text), clearQueue(), abort(), reset()

  // Model/Thinking
  setModel(model), cycleModel(), setThinkingLevel(level), cycleThinkingLevel()

  // Compaction
  compact(customInstructions?), abortCompaction(), checkAutoCompaction()

  // Bash
  executeBash(command, onChunk?), abortBash(), isBashRunning

  // Session
  switchSession(path), branch(entryIndex), getSessionStats(), exportToHtml()
}
```

## Testing
User prefers **E2E tests only** - no unit tests. Manual testing checklist is at the end of `refactor.md`.

## Commands
- `npm run check` - Full check (formatting, linting, types)
- `npx tsx src/cli-new.ts` - Test new implementation (after WP14)


ok, i hope i haven't lobotimized you by compacting


you can look up the detailed history of this session in /Users/badlogic/.pi/agent/sessions/--Users-badlogic-workspaces-pi-mono--/2025-12-08T23-22-21-320Z_0db2eb3b-5ed8-4b70-88c6-a3f7104eb251.jsonl if you need to (don't read the full file!)


The user is joking about the context compaction potentially causing me to lose important information. They're offering me access to the full session history if I need it, but cautioning me not to read the whole file (it would be huge).

I should acknowledge this and continue with WP15. I have a good summary of what's been done and what needs to be done next. Let me proceed with WP15: Create InteractiveMode.

WP15 is about refactoring TuiRenderer to use AgentSession. Looking at the plan in refactor.md, the approach is:
1. Create `src/modes/interactive/interactive-mode.ts` based on `tui-renderer.ts`
2. Rename class `TuiRenderer` → `InteractiveMode`
3. Change constructor to accept `AgentSession` instead of individual params
4. Replace direct agent/sessionManager/settingsManager calls with AgentSession methods
5. Keep imports pointing to `../../tui/` for existing components

This is the largest remaining work package. Let me start by examining tui-renderer.ts to understand what needs to change.

Ha, I'm intact. The summary captured the key state well, and I can reference the session file if I need specific details.

Let me continue with WP15: Create InteractiveMode. First, let me look at the TuiRenderer constructor and key methods to understand what needs to change:

cd /Users/badlogic/workspaces/pi-mono && grep -n "constructor\|private agent\|private sessionManager\|private settingsManager" packages/coding-agent/src/tui/tui-renderer.ts | head -20


72:	private agent: Agent;
73:	private sessionManager: SessionManager;
74:	private settingsManager: SettingsManager;
142:	constructor(


	constructor(
		agent: Agent,
		sessionManager: SessionManager,
		settingsManager: SettingsManager,
		version: string,
		changelogMarkdown: string | null = null,
		collapseChangelog = false,
		scopedModels: Array<{ model: Model<any>; thinkingLevel: ThinkingLevel }> = [],
		fdPath: string | null = null,
	) {
		this.agent = agent;
		this.sessionManager = sessionManager;
		this.settingsManager = settingsManager;
		this.version = version;
		this.changelogMarkdown = changelogMarkdown;
		this.collapseChangelog = collapseChangelog;
		this.scopedModels = scopedModels;
		this.ui = new TUI(new ProcessTerminal());
		this.chatContainer = new Container();
		this.pendingMessagesContainer = new Container();
		this.statusContainer = new Container();
		this.editor = new CustomEditor(getEditorTheme());
		this.editorContainer = new Container(); // Container to hold editor or selector
		this.editorContainer.addChild(this.editor); // Start with editor
		this.footer = new FooterComponent(agent.state);
		this.footer.setAutoCompactEnabled(this.settingsManager.getCompactionEnabled());

		// Define slash commands
		const thinkingCommand: SlashCommand = {
			name: "thinking",
			description: "Select reasoning level (opens selector UI)",
		};

		const modelCommand: SlashCommand = {
			name: "model",
			description: "Select model (opens selector UI)",
		};

		const exportCommand: SlashCommand = {
			name: "export",
			description: "Export session to HTML file",
		};

		const copyCommand: SlashCommand = {
			name: "copy",
			description: "Copy last agent message to clipboard",
		};

		const sessionCommand: SlashCommand = {
			name: "session",
			description: "Show session info and stats",
		};

		const changelogCommand: SlashCommand = {
			name: "changelog",
			description: "Show changelog entries",
		};

		const branchCommand: SlashCommand = {
			name: "branch",
			description: "Create a new branch from a previous message",
		};

		const loginCommand: SlashCommand = {
			name: "login",
			description: "Login with OAuth provider",
		};

		const logoutCommand: SlashCommand = {
			name: "logout",
			description: "Logout from OAuth provider",
		};

		const queueCommand: SlashCommand = {
			name: "queue",
			description: "Select message queue mode (opens selector UI)",
		};

		const themeCommand: SlashCommand = {
			name: "theme",

[2156 more lines in file. Use offset=222 to continue]


The constructor is large. Let me see how many lines TuiRenderer is total and understand its structure:

cd /Users/badlogic/workspaces/pi-mono && wc -l packages/coding-agent/src/tui/tui-renderer.ts && grep -n "^\t[a-zA-Z].*(" packages/coding-agent/src/tui/tui-renderer.ts | head -50


    2376 packages/coding-agent/src/tui/tui-renderer.ts
77:	private onInputCallback?: (text: string) => void;
92:	private pendingTools = new Map<string, ToolExecutionComponent>();
128:	private unsubscribe?: () => void;
142:	constructor(
283:	async init(): Promise<void> {
651:	private subscribeToAgent(): void {
673:	private async checkAutoCompaction(): Promise<void> {
701:	private async handleEvent(event: AgentEvent, state: AgentState): Promise<void> {
873:	private addMessageToChat(message: Message | AppMessage): void {
914:	renderInitialMessages(state: AgentState): void {
1020:	async getUserInput(): Promise<string> {
1029:	private rebuildChatFromMessages(): void {
1093:	private handleCtrlC(): void {
1109:	private updateEditorBorderColor(): void {
1119:	private cycleThinkingLevel(): void {
1155:	private async cycleModel(): Promise<void> {
1263:	private toggleToolOutputExpansion(): void {
1280:	private toggleThinkingBlockVisibility(): void {
1302:	clearEditor(): void {
1307:	showError(errorMessage: string): void {
1314:	showWarning(warningMessage: string): void {
1321:	showNewVersionNotification(newVersion: string): void {
1339:	private showThinkingSelector(): void {
1377:	private hideThinkingSelector(): void {
1385:	private showQueueModeSelector(): void {
1419:	private hideQueueModeSelector(): void {
1427:	private showThemeSelector(): void {
1485:	private hideThemeSelector(): void {
1493:	private showModelSelector(): void {
1529:	private hideModelSelector(): void {
1537:	private showUserMessageSelector(): void {
1624:	private hideUserMessageSelector(): void {
1632:	private showSessionSelector(): void {
1654:	private async handleResumeSession(sessionPath: string): Promise<void> {
1713:	private hideSessionSelector(): void {
1721:	private async showOAuthSelector(mode: "login" | "logout"): Promise<void> {
1835:	private hideOAuthSelector(): void {
1843:	private handleExportCommand(text: string): void {
1866:	private handleCopyCommand(): void {
1906:	private handleSessionCommand(): void {
1978:	private handleChangelogCommand(): void {
2001:	private async handleClearCommand(): Promise<void> {
2040:	private handleDebugCommand(): void {
2075:	private async handleBashCommand(command: string): Promise<void> {
2127:	private executeBashCommand(
2228:	private async executeCompaction(customInstructions?: string, isAuto = false): Promise<void> {
2327:	private async handleCompactCommand(customInstructions?: string): Promise<void> {
2340:	private handleAutocompactCommand(): void {
2352:	private updatePendingMessagesDisplay(): void {
2365:	stop(): void {


also remember the @packages/coding-agent/docs/refactor.md file btw. could read it now to refresh you rmind


Good idea, let me read the refactor.md to refresh my understanding of the plan for WP15.