refactor: remove dead code (unused exports) (#1486)

Remove exported functions/constants/classes that are never imported
anywhere else in the codebase:

Fully removed (not used anywhere):
- nativeAvailable (native)
- getApiProviders, unregisterApiProviders (pi-ai/api-registry)
- createAssistantMessageEventStream (pi-ai/event-stream)
- getOverflowPatterns (pi-ai/overflow)
- validateToolCall (pi-ai/validation)
- getToolsDir (pi-coding-agent/config)
- emitSessionShutdownEvent (extensions/runner)
- syncContent, notifySaved (lsp/client)
- getServerForFile, hasCapability (lsp/config)
- severityToIcon, formatPosition, formatTextEdit, symbolKindToName (lsp/utils)
- clearApiKeyCache (model-registry)
- restoreModelFromSession (model-resolver)
- isLightTheme (theme)
- loadPhoton + all internal helpers (photon)
- extractAnsiCode (pi-tui/utils)

De-exported (used locally, not externally):
- extractRetryAfterMs, inferCopilotInitiator, extractRetryDelay,
  buildRequest, requiresToolCallId, registerBuiltInApiProviders,
  streamProxy, isBunRuntime, detectInstallMethod, getPackageDir,
  getPackageJsonPath, ansiToHtml, DEFAULT_APP_KEYBINDINGS,
  DEFAULT_KEYBINDINGS, shutdownClient, sendNotification, shutdownAll,
  applyTextEditsToString, wrapWithLspmux, severityToString,
  COMPACTION_SUMMARY_PREFIX/SUFFIX, BRANCH_SUMMARY_PREFIX/SUFFIX,
  bashExecutionToText, defaultModelPerProvider, parseModelPattern,
  parseCommandArgs, substituteArgs, loadEntriesFromFile,
  findMostRecentSession, FileSettingsStorage, InMemorySettingsStorage,
  migrateAuthToAuthJson, migrateSessionsFromAgentRoot,
  parseSearchQuery, matchSession, compareVersions, isWaylandSession,
  getToolPath, wordWrapLine

packages/native/src/native.ts

@@ -151,6 +151,3 @@ export const native = loadNative() as {
   parseStreamingJson: (text: string) => unknown;
   xxHash32: (input: string, seed: number) => number;
 };
-
-/** True when the native addon loaded successfully. False on unsupported platforms. */
-export const nativeAvailable = _loadedSuccessfully;

packages/pi-agent-core/src/proxy.ts

@@ -82,7 +82,7 @@ export interface ProxyStreamOptions extends SimpleStreamOptions {
  * });
  * ```
  */
-export function streamProxy(model: Model<any>, context: Context, options: ProxyStreamOptions): ProxyMessageEventStream {
+function streamProxy(model: Model<any>, context: Context, options: ProxyStreamOptions): ProxyMessageEventStream {
 	const stream = new ProxyMessageEventStream();
 
 	(async () => {

packages/pi-ai/src/api-registry.ts

@@ -81,18 +81,6 @@ export function getApiProvider(api: Api): ApiProviderInternal | undefined {
 	return apiProviderRegistry.get(api)?.provider;
 }
 
-export function getApiProviders(): ApiProviderInternal[] {
-	return Array.from(apiProviderRegistry.values(), (entry) => entry.provider);
-}
-
-export function unregisterApiProviders(sourceId: string): void {
-	for (const [api, entry] of apiProviderRegistry.entries()) {
-		if (entry.sourceId === sourceId) {
-			apiProviderRegistry.delete(api);
-		}
-	}
-}
-
 export function clearApiProviders(): void {
 	apiProviderRegistry.clear();
 }

packages/pi-ai/src/providers/anthropic.ts

@@ -230,7 +230,7 @@ function isTransientNetworkError(error: unknown): boolean {
  * Checks: retry-after (seconds or RFC date), x-ratelimit-reset-requests, x-ratelimit-reset-tokens.
  * Returns undefined if no valid delay is found or if the delay is in the past.
  */
-export function extractRetryAfterMs(headers: Headers | { get(name: string): string | null }, errorText = ""): number | undefined {
+function extractRetryAfterMs(headers: Headers | { get(name: string): string | null }, errorText = ""): number | undefined {
 	const normalizeDelay = (ms: number): number | undefined => (ms > 0 ? Math.ceil(ms + 1000) : undefined);
 
 	const retryAfter = headers.get("retry-after");

packages/pi-ai/src/providers/github-copilot-headers.ts

@@ -2,7 +2,7 @@ import type { Message } from "../types.js";
 
 // Copilot expects X-Initiator to indicate whether the request is user-initiated
 // or agent-initiated (e.g. follow-up after assistant/tool messages).
-export function inferCopilotInitiator(messages: Message[]): "user" | "agent" {
+function inferCopilotInitiator(messages: Message[]): "user" | "agent" {
 	const last = messages[messages.length - 1];
 	return last && last.role !== "user" ? "agent" : "user";
 }

packages/pi-ai/src/providers/google-gemini-cli.ts

@@ -112,7 +112,7 @@ const CLAUDE_THINKING_BETA_HEADER = "interleaved-thinking-2025-05-14";
  * - "Please retry in Xs" or "Please retry in Xms"
  * - "retryDelay": "34.074824224s" (JSON field)
  */
-export function extractRetryDelay(errorText: string, response?: Response | Headers): number | undefined {
+function extractRetryDelay(errorText: string, response?: Response | Headers): number | undefined {
 	const normalizeDelay = (ms: number): number | undefined => (ms > 0 ? Math.ceil(ms + 1000) : undefined);
 
 	const headers = response instanceof Headers ? response : response?.headers;
@@ -865,7 +865,7 @@ export const streamSimpleGoogleGeminiCli: StreamFunction<"google-gemini-cli", Si
 	} satisfies GoogleGeminiCliOptions);
 };
 
-export function buildRequest(
+function buildRequest(
 	model: Model<"google-gemini-cli">,
 	context: Context,
 	projectId: string,

packages/pi-ai/src/providers/google-shared.ts

@@ -66,7 +66,7 @@ function resolveThoughtSignature(isSameProviderAndModel: boolean, signature: str
 /**
  * Models via Google APIs that require explicit tool call IDs in function calls/responses.
  */
-export function requiresToolCallId(modelId: string): boolean {
+function requiresToolCallId(modelId: string): boolean {
 	return modelId.startsWith("claude-") || modelId.startsWith("gpt-oss-");
 }
 

packages/pi-ai/src/providers/register-builtins.ts

@@ -116,7 +116,7 @@ function streamSimpleBedrockLazy(
 	return outer;
 }
 
-export function registerBuiltInApiProviders(): void {
+function registerBuiltInApiProviders(): void {
 	registerApiProvider({
 		api: "anthropic-messages",
 		stream: streamAnthropic,

packages/pi-ai/src/utils/event-stream.ts

@@ -80,8 +80,3 @@ export class AssistantMessageEventStream extends EventStream<AssistantMessageEve
 		);
 	}
 }
-
-/** Factory function for AssistantMessageEventStream (for use in extensions) */
-export function createAssistantMessageEventStream(): AssistantMessageEventStream {
-	return new AssistantMessageEventStream();
-}

packages/pi-ai/src/utils/overflow.ts

@@ -113,11 +113,4 @@ export function isContextOverflow(message: AssistantMessage, contextWindow?: num
 	}
 
 	return false;
-}
-
-/**
- * Get the overflow patterns for testing purposes.
- */
-export function getOverflowPatterns(): RegExp[] {
-	return [...OVERFLOW_PATTERNS];
-}
+}

packages/pi-ai/src/utils/validation.ts

@@ -28,21 +28,6 @@ if (!isBrowserExtension) {
 	}
 }
 
-/**
- * Finds a tool by name and validates the tool call arguments against its TypeBox schema
- * @param tools Array of tool definitions
- * @param toolCall The tool call from the LLM
- * @returns The validated arguments
- * @throws Error if tool is not found or validation fails
- */
-export function validateToolCall(tools: Tool[], toolCall: ToolCall): any {
-	const tool = tools.find((t) => t.name === toolCall.name);
-	if (!tool) {
-		throw new Error(`Tool "${toolCall.name}" not found`);
-	}
-	return validateToolArguments(tool, toolCall);
-}
-
 /**
  * Validates tool call arguments against the tool's TypeBox schema
  * @param tool The tool definition with TypeBox schema

packages/pi-coding-agent/src/config.ts

@@ -18,15 +18,15 @@ export const isBunBinary =
 	import.meta.url.includes("$bunfs") || import.meta.url.includes("~BUN") || import.meta.url.includes("%7EBUN");
 
 /** Detect if Bun is the runtime (compiled binary or bun run) */
-export const isBunRuntime = !!process.versions.bun;
+const isBunRuntime = !!process.versions.bun;
 
 // =============================================================================
 // Install Method Detection
 // =============================================================================
 
-export type InstallMethod = "bun-binary" | "npm" | "pnpm" | "yarn" | "bun" | "unknown";
+type InstallMethod = "bun-binary" | "npm" | "pnpm" | "yarn" | "bun" | "unknown";
 
-export function detectInstallMethod(): InstallMethod {
+function detectInstallMethod(): InstallMethod {
 	if (isBunBinary) {
 		return "bun-binary";
 	}
@@ -79,7 +79,7 @@ export function getUpdateInstruction(packageName: string): string {
  */
 let _cachedPackageDir: string | undefined;
 
-export function getPackageDir(): string {
+function getPackageDir(): string {
 	if (_cachedPackageDir !== undefined) return _cachedPackageDir;
 
 	// Allow override via environment variable (useful for Nix/Guix where store paths tokenize poorly)
@@ -138,7 +138,7 @@ export function getExportTemplateDir(): string {
 }
 
 /** Get path to package.json */
-export function getPackageJsonPath(): string {
+function getPackageJsonPath(): string {
 	return join(getPackageDir(), "package.json");
 }
 
@@ -219,11 +219,6 @@ export function getSettingsPath(): string {
 	return join(getAgentDir(), "settings.json");
 }
 
-/** Get path to tools directory */
-export function getToolsDir(): string {
-	return join(getAgentDir(), "tools");
-}
-
 /** Get path to managed binaries directory (fd, rg) */
 export function getBinDir(): string {
 	return join(getAgentDir(), "bin");

packages/pi-coding-agent/src/core/export-html/ansi-to-html.ts

@@ -195,7 +195,7 @@ const ANSI_REGEX = /\x1b\[([\d;]*)m/g;
 /**
  * Convert ANSI-escaped text to HTML with inline styles.
  */
-export function ansiToHtml(text: string): string {
+function ansiToHtml(text: string): string {
 	const style = createEmptyStyle();
 	let result = "";
 	let lastIndex = 0;

packages/pi-coding-agent/src/core/extensions/runner.ts

@@ -153,19 +153,6 @@ export type ReloadHandler = () => Promise<void>;
 
 export type ShutdownHandler = () => void;
 
-/**
- * Helper function to emit session_shutdown event to extensions.
- * Returns true if the event was emitted, false if there were no handlers.
- */
-export async function emitSessionShutdownEvent(extensionRunner: ExtensionRunner | undefined): Promise<boolean> {
-	if (extensionRunner?.hasHandlers("session_shutdown")) {
-		await extensionRunner.emit({
-			type: "session_shutdown",
-		});
-		return true;
-	}
-	return false;
-}
 
 const noOpUIContext: ExtensionUIContext = {
 	select: async () => undefined,

packages/pi-coding-agent/src/core/keybindings.ts

@@ -50,7 +50,7 @@ export type KeybindingsConfig = {
 /**
  * Default application keybindings.
  */
-export const DEFAULT_APP_KEYBINDINGS: Record<AppAction, KeyId | KeyId[]> = {
+const DEFAULT_APP_KEYBINDINGS: Record<AppAction, KeyId | KeyId[]> = {
 	interrupt: "escape",
 	clear: "ctrl+c",
 	exit: "ctrl+d",
@@ -75,7 +75,7 @@ export const DEFAULT_APP_KEYBINDINGS: Record<AppAction, KeyId | KeyId[]> = {
 /**
  * All default keybindings (app + editor).
  */
-export const DEFAULT_KEYBINDINGS: Required<KeybindingsConfig> = {
+const DEFAULT_KEYBINDINGS: Required<KeybindingsConfig> = {
 	...DEFAULT_EDITOR_KEYBINDINGS,
 	...DEFAULT_APP_KEYBINDINGS,
 };

packages/pi-coding-agent/src/core/lsp/client.ts

@@ -618,76 +618,6 @@ export async function ensureFileOpen(client: LspClient, filePath: string, signal
 	}
 }
 
-/**
- * Sync in-memory content to the LSP client without reading from disk.
- */
-export async function syncContent(
-	client: LspClient,
-	filePath: string,
-	content: string,
-	signal?: AbortSignal,
-): Promise<void> {
-	const uri = fileToUri(filePath);
-	const lockKey = `${client.name}:${uri}`;
-	throwIfAborted(signal);
-
-	const existingLock = fileOperationLocks.get(lockKey);
-	if (existingLock) {
-		await untilAborted(signal, () => existingLock);
-	}
-
-	const syncPromise = (async () => {
-		client.diagnostics.delete(uri);
-
-		const info = client.openFiles.get(uri);
-
-		if (!info) {
-			const languageId = detectLanguageId(filePath);
-			throwIfAborted(signal);
-			await sendNotification(client, "textDocument/didOpen", {
-				textDocument: {
-					uri,
-					languageId,
-					version: 1,
-					text: content,
-				},
-			});
-			client.openFiles.set(uri, { version: 1, languageId });
-			client.lastActivity = Date.now();
-			return;
-		}
-
-		const version = ++info.version;
-		throwIfAborted(signal);
-		await sendNotification(client, "textDocument/didChange", {
-			textDocument: { uri, version },
-			contentChanges: [{ text: content }],
-		});
-		client.lastActivity = Date.now();
-	})();
-
-	fileOperationLocks.set(lockKey, syncPromise);
-	try {
-		await syncPromise;
-	} finally {
-		fileOperationLocks.delete(lockKey);
-	}
-}
-
-/**
- * Notify LSP that a file was saved.
- */
-export async function notifySaved(client: LspClient, filePath: string, signal?: AbortSignal): Promise<void> {
-	const uri = fileToUri(filePath);
-	const info = client.openFiles.get(uri);
-	if (!info) return;
-
-	throwIfAborted(signal);
-	await sendNotification(client, "textDocument/didSave", {
-		textDocument: { uri },
-	});
-	client.lastActivity = Date.now();
-}
 
 /**
  * Refresh a file in the LSP client.
@@ -761,7 +691,7 @@ export function notifyFileChanged(filePath: string): void {
 /**
  * Shutdown a specific client by key.
  */
-export function shutdownClient(key: string): void {
+function shutdownClient(key: string): void {
 	const client = clients.get(key);
 	if (!client) return;
 
@@ -865,7 +795,7 @@ export async function sendRequest(
 	return promise;
 }
 
-export async function sendNotification(client: LspClient, method: string, params: unknown): Promise<void> {
+async function sendNotification(client: LspClient, method: string, params: unknown): Promise<void> {
 	const notification: LspJsonRpcNotification = {
 		jsonrpc: "2.0",
 		method,
@@ -889,7 +819,7 @@ export async function sendNotification(client: LspClient, method: string, params
 /**
  * Shutdown all LSP clients.
  */
-export function shutdownAll(): void {
+function shutdownAll(): void {
 	const clientsToShutdown = Array.from(clients.values());
 	clients.clear();
 

packages/pi-coding-agent/src/core/lsp/config.ts

@@ -319,14 +319,3 @@ export function getServersForFile(config: LspConfig, filePath: string): Array<[s
 	});
 }
 
-export function getServerForFile(config: LspConfig, filePath: string): [string, ServerConfig] | null {
-	const servers = getServersForFile(config, filePath);
-	return servers.length > 0 ? servers[0] : null;
-}
-
-export function hasCapability(
-	config: ServerConfig,
-	capability: keyof NonNullable<ServerConfig["capabilities"]>,
-): boolean {
-	return config.capabilities?.[capability] === true;
-}

packages/pi-coding-agent/src/core/lsp/edits.ts

@@ -11,7 +11,7 @@ import { uriToFile } from "./utils.js";
  * Apply text edits to a string in-memory.
  * Edits are applied in reverse order (bottom-to-top) to preserve line/character indices.
  */
-export function applyTextEditsToString(content: string, edits: TextEdit[]): string {
+function applyTextEditsToString(content: string, edits: TextEdit[]): string {
 	const lines = content.split("\n");
 
 	// Sort edits in reverse order (bottom-to-top, right-to-left)

packages/pi-coding-agent/src/core/lsp/lspmux.ts

@@ -172,7 +172,7 @@ export interface LspmuxWrappedCommand {
 	env?: Record<string, string>;
 }
 
-export function wrapWithLspmux(
+function wrapWithLspmux(
 	originalCommand: string,
 	originalArgs: string[] | undefined,
 	state: LspmuxState,

packages/pi-coding-agent/src/core/lsp/utils.ts

@@ -192,7 +192,7 @@ const SEVERITY_NAMES: Record<DiagnosticSeverity, string> = {
 	4: "hint",
 };
 
-export function severityToString(severity?: DiagnosticSeverity): string {
+function severityToString(severity?: DiagnosticSeverity): string {
 	return SEVERITY_NAMES[severity ?? 1] ?? "unknown";
 }
 
@@ -211,21 +211,6 @@ export function sortDiagnostics(diagnostics: Diagnostic[]): Diagnostic[] {
 	});
 }
 
-export function severityToIcon(severity?: DiagnosticSeverity): string {
-	switch (severity ?? 1) {
-		case 1:
-			return "[E]";
-		case 2:
-			return "[W]";
-		case 3:
-			return "[I]";
-		case 4:
-			return "[H]";
-		default:
-			return "[E]";
-	}
-}
-
 function stripDiagnosticNoise(message: string): string {
 	return message
 		.split("\n")
@@ -353,10 +338,6 @@ export function formatLocation(location: Location, cwd: string): string {
 	return `${file}:${line}:${col}`;
 }
 
-export function formatPosition(line: number, col: number): string {
-	return `${line}:${col}`;
-}
-
 // =============================================================================
 // WorkspaceEdit Formatting
 // =============================================================================
@@ -397,15 +378,6 @@ export function formatWorkspaceEdit(edit: WorkspaceEdit, cwd: string): string[]
 	return results;
 }
 
-export function formatTextEdit(edit: TextEdit, maxLength = 50): string {
-	const range = `${edit.range.start.line + 1}:${edit.range.start.character + 1}`;
-	const preview =
-		edit.newText.length > maxLength
-			? `${edit.newText.slice(0, maxLength).replace(/\n/g, "\\n")}…`
-			: edit.newText.replace(/\n/g, "\\n");
-	return `line ${range} -> "${preview}"`;
-}
-
 // =============================================================================
 // Symbol Formatting
 // =============================================================================
@@ -443,10 +415,6 @@ export function symbolKindToIcon(kind: SymbolKind): string {
 	return `[${SYMBOL_KIND_LABELS[kind] ?? "?"}]`;
 }
 
-export function symbolKindToName(kind: SymbolKind): string {
-	return SYMBOL_KIND_LABELS[kind] ?? "Unknown";
-}
-
 export function formatDocumentSymbol(symbol: DocumentSymbol, indent = 0): string[] {
 	const prefix = "  ".repeat(indent);
 	const icon = symbolKindToIcon(symbol.kind);

packages/pi-coding-agent/src/core/messages.ts

@@ -8,20 +8,20 @@
 import type { AgentMessage } from "@gsd/pi-agent-core";
 import type { ImageContent, Message, TextContent } from "@gsd/pi-ai";
 
-export const COMPACTION_SUMMARY_PREFIX = `The conversation history before this point was compacted into the following summary:
+const COMPACTION_SUMMARY_PREFIX = `The conversation history before this point was compacted into the following summary:
 
 <summary>
 `;
 
-export const COMPACTION_SUMMARY_SUFFIX = `
+const COMPACTION_SUMMARY_SUFFIX = `
 </summary>`;
 
-export const BRANCH_SUMMARY_PREFIX = `The following is a summary of a branch that this conversation came back from:
+const BRANCH_SUMMARY_PREFIX = `The following is a summary of a branch that this conversation came back from:
 
 <summary>
 `;
 
-export const BRANCH_SUMMARY_SUFFIX = `</summary>`;
+const BRANCH_SUMMARY_SUFFIX = `</summary>`;
 
 /**
  * Message type for bash executions via the ! command.
@@ -79,7 +79,7 @@ declare module "@gsd/pi-agent-core" {
 /**
  * Convert a BashExecutionMessage to user message text for LLM context.
  */
-export function bashExecutionToText(msg: BashExecutionMessage): string {
+function bashExecutionToText(msg: BashExecutionMessage): string {
 	let text = `Ran \`${msg.command}\`\n`;
 	if (msg.output) {
 		text += `\`\`\`\n${msg.output}\n\`\`\``;

packages/pi-coding-agent/src/core/model-registry.ts

@@ -216,8 +216,6 @@ function applyModelOverride(model: Model<Api>, override: ModelOverride): Model<A
 	return result;
 }
 
-/** Clear the config value command cache. Exported for testing. */
-export const clearApiKeyCache = clearConfigValueCache;
 
 /**
  * Model registry - loads and manages models, resolves API keys via AuthStorage.

packages/pi-coding-agent/src/core/model-resolver.ts

@@ -11,7 +11,7 @@ import { DEFAULT_THINKING_LEVEL } from "./defaults.js";
 import type { ModelRegistry } from "./model-registry.js";
 
 /** Default model IDs for each known provider */
-export const defaultModelPerProvider: Record<KnownProvider, string> = {
+const defaultModelPerProvider: Record<KnownProvider, string> = {
 	"amazon-bedrock": "us.anthropic.claude-opus-4-6-v1",
 	anthropic: "claude-opus-4-6[1m]",
 	openai: "gpt-5.4",
@@ -143,9 +143,9 @@ function buildFallbackModel(provider: string, modelId: string, availableModels:
  *    - If suffix is valid thinking level, use it and recurse on prefix
  *    - If suffix is invalid, warn and recurse on prefix with "off"
  *
- * @internal Exported for testing
+ * @internal
  */
-export function parseModelPattern(
+function parseModelPattern(
 	pattern: string,
 	availableModels: Model<Api>[],
 	options?: { allowInvalidThinkingLevelFallback?: boolean },
@@ -546,77 +546,3 @@ export async function findInitialModel(options: {
 	// 5. No model found
 	return { model: undefined, thinkingLevel: DEFAULT_THINKING_LEVEL, fallbackMessage: undefined };
 }
-
-/**
- * Restore model from session, with fallback to available models
- */
-export async function restoreModelFromSession(
-	savedProvider: string,
-	savedModelId: string,
-	currentModel: Model<Api> | undefined,
-	shouldPrintMessages: boolean,
-	modelRegistry: ModelRegistry,
-): Promise<{ model: Model<Api> | undefined; fallbackMessage: string | undefined }> {
-	const restoredModel = modelRegistry.find(savedProvider, savedModelId);
-
-	// Check if restored model exists and has a valid API key
-	const hasApiKey = restoredModel ? !!(await modelRegistry.getApiKey(restoredModel)) : false;
-
-	if (restoredModel && hasApiKey) {
-		if (shouldPrintMessages) {
-			console.log(chalk.dim(`Restored model: ${savedProvider}/${savedModelId}`));
-		}
-		return { model: restoredModel, fallbackMessage: undefined };
-	}
-
-	// Model not found or no API key - fall back
-	const reason = !restoredModel ? "model no longer exists" : "no API key available";
-
-	if (shouldPrintMessages) {
-		console.error(chalk.yellow(`Warning: Could not restore model ${savedProvider}/${savedModelId} (${reason}).`));
-	}
-
-	// If we already have a model, use it as fallback
-	if (currentModel) {
-		if (shouldPrintMessages) {
-			console.log(chalk.dim(`Falling back to: ${currentModel.provider}/${currentModel.id}`));
-		}
-		return {
-			model: currentModel,
-			fallbackMessage: `Could not restore model ${savedProvider}/${savedModelId} (${reason}). Using ${currentModel.provider}/${currentModel.id}.`,
-		};
-	}
-
-	// Try to find any available model
-	const availableModels = await modelRegistry.getAvailable();
-
-	if (availableModels.length > 0) {
-		// Try to find a default model from known providers
-		let fallbackModel: Model<Api> | undefined;
-		for (const provider of Object.keys(defaultModelPerProvider) as KnownProvider[]) {
-			const defaultId = defaultModelPerProvider[provider];
-			const match = availableModels.find((m) => m.provider === provider && m.id === defaultId);
-			if (match) {
-				fallbackModel = match;
-				break;
-			}
-		}
-
-		// If no default found, use first available
-		if (!fallbackModel) {
-			fallbackModel = availableModels[0];
-		}
-
-		if (shouldPrintMessages) {
-			console.log(chalk.dim(`Falling back to: ${fallbackModel.provider}/${fallbackModel.id}`));
-		}
-
-		return {
-			model: fallbackModel,
-			fallbackMessage: `Could not restore model ${savedProvider}/${savedModelId} (${reason}). Using ${fallbackModel.provider}/${fallbackModel.id}.`,
-		};
-	}
-
-	// No models available
-	return { model: undefined, fallbackMessage: undefined };
-}

packages/pi-coding-agent/src/core/prompt-templates.ts

@@ -19,7 +19,7 @@ export interface PromptTemplate {
  * Parse command arguments respecting quoted strings (bash-style)
  * Returns array of arguments
  */
-export function parseCommandArgs(argsString: string): string[] {
+function parseCommandArgs(argsString: string): string[] {
 	const args: string[] = [];
 	let current = "";
 	let inQuote: string | null = null;
@@ -63,7 +63,7 @@ export function parseCommandArgs(argsString: string): string[] {
  * Note: Replacement happens on the template string only. Argument values
  * containing patterns like $1, $@, or $ARGUMENTS are NOT recursively substituted.
  */
-export function substituteArgs(content: string, args: string[]): string {
+function substituteArgs(content: string, args: string[]): string {
 	let result = content;
 
 	// Replace $1, $2, etc. with positional args FIRST (before wildcards)

packages/pi-coding-agent/src/core/session-manager.ts

@@ -577,8 +577,7 @@ function resolveBlobRefsInEntries(entries: FileEntry[], blobStore: BlobStore): v
 	}
 }
 
-/** Exported for testing */
-export function loadEntriesFromFile(filePath: string): FileEntry[] {
+function loadEntriesFromFile(filePath: string): FileEntry[] {
 	if (!existsSync(filePath)) return [];
 
 	const content = readFileSync(filePath, "utf8");
@@ -620,8 +619,7 @@ function isValidSessionFile(filePath: string): boolean {
 	}
 }
 
-/** Exported for testing */
-export function findMostRecentSession(sessionDir: string): string | null {
+function findMostRecentSession(sessionDir: string): string | null {
 	try {
 		const files = readdirSync(sessionDir)
 			.filter((f) => f.endsWith(".jsonl"))

packages/pi-coding-agent/src/core/settings-manager.ts

@@ -195,7 +195,7 @@ export interface SettingsError {
 	error: Error;
 }
 
-export class FileSettingsStorage implements SettingsStorage {
+class FileSettingsStorage implements SettingsStorage {
 	private globalSettingsPath: string;
 	private projectSettingsPath: string;
 
@@ -262,7 +262,7 @@ export class FileSettingsStorage implements SettingsStorage {
 	}
 }
 
-export class InMemorySettingsStorage implements SettingsStorage {
+class InMemorySettingsStorage implements SettingsStorage {
 	private global: string | undefined;
 	private project: string | undefined;
 

packages/pi-coding-agent/src/migrations.ts

@@ -16,7 +16,7 @@ const EXTENSIONS_DOC_URL = "https://github.com/badlogic/pi-mono/blob/main/packag
  *
  * @returns Array of provider names that were migrated
  */
-export function migrateAuthToAuthJson(): string[] {
+function migrateAuthToAuthJson(): string[] {
 	const agentDir = getAgentDir();
 	const authPath = join(agentDir, "auth.json");
 	const oauthPath = join(agentDir, "oauth.json");
@@ -79,7 +79,7 @@ export function migrateAuthToAuthJson(): string[] {
  *
  * See: https://github.com/badlogic/pi-mono/issues/320
  */
-export function migrateSessionsFromAgentRoot(): void {
+function migrateSessionsFromAgentRoot(): void {
 	const agentDir = getAgentDir();
 
 	// Find all .jsonl files directly in agentDir (not in subdirectories)

packages/pi-coding-agent/src/modes/interactive/components/session-selector-search.ts

@@ -36,7 +36,7 @@ function matchesNameFilter(session: SessionInfo, filter: NameFilter): boolean {
 	return hasSessionName(session);
 }
 
-export function parseSearchQuery(query: string): ParsedSearchQuery {
+function parseSearchQuery(query: string): ParsedSearchQuery {
 	const trimmed = query.trim();
 	if (!trimmed) {
 		return { mode: "tokens", tokens: [], regex: null };
@@ -113,7 +113,7 @@ export function parseSearchQuery(query: string): ParsedSearchQuery {
 	return { mode: "tokens", tokens, regex: null };
 }
 
-export function matchSession(session: SessionInfo, parsed: ParsedSearchQuery): MatchResult {
+function matchSession(session: SessionInfo, parsed: ParsedSearchQuery): MatchResult {
 	const text = getSessionSearchText(session);
 
 	if (parsed.mode === "regex") {

packages/pi-coding-agent/src/modes/interactive/theme/theme.ts

@@ -880,14 +880,6 @@ export function getResolvedThemeColors(themeName?: string): Record<string, strin
 	return cssColors;
 }
 
-/**
- * Check if a theme is a "light" theme (for CSS that needs light/dark variants).
- */
-export function isLightTheme(themeName?: string): boolean {
-	// Currently just check the name - could be extended to analyze colors
-	return themeName === "light";
-}
-
 /**
  * Get explicit export colors from theme JSON, if specified.
  * Returns undefined for each color that isn't explicitly set.

packages/pi-coding-agent/src/utils/changelog.ts

@@ -73,7 +73,7 @@ export function parseChangelog(changelogPath: string): ChangelogEntry[] {
 /**
  * Compare versions. Returns: -1 if v1 < v2, 0 if v1 === v2, 1 if v1 > v2
  */
-export function compareVersions(v1: ChangelogEntry, v2: ChangelogEntry): number {
+function compareVersions(v1: ChangelogEntry, v2: ChangelogEntry): number {
 	if (v1.major !== v2.major) return v1.major - v2.major;
 	if (v1.minor !== v2.minor) return v1.minor - v2.minor;
 	return v1.patch - v2.patch;

packages/pi-coding-agent/src/utils/clipboard-image.ts

@@ -14,7 +14,7 @@ const DEFAULT_LIST_TIMEOUT_MS = 1000;
 const DEFAULT_READ_TIMEOUT_MS = 3000;
 const DEFAULT_MAX_BUFFER_BYTES = 50 * 1024 * 1024;
 
-export function isWaylandSession(env: NodeJS.ProcessEnv = process.env): boolean {
+function isWaylandSession(env: NodeJS.ProcessEnv = process.env): boolean {
 	return Boolean(env.WAYLAND_DISPLAY) || env.XDG_SESSION_TYPE === "wayland";
 }
 

packages/pi-coding-agent/src/utils/photon.ts

@@ -1,139 +1,2 @@
-/**
- * Photon image processing wrapper.
- *
- * This module provides a unified interface to @silvia-odwyer/photon-node that works in:
- * 1. Node.js (development, npm run build)
- * 2. Bun compiled binaries (standalone distribution)
- *
- * The challenge: photon-node's CJS entry uses fs.readFileSync(__dirname + '/photon_rs_bg.wasm')
- * which bakes the build machine's absolute path into Bun compiled binaries.
- *
- * Solution:
- * 1. Patch fs.readFileSync to redirect missing photon_rs_bg.wasm reads
- * 2. Copy photon_rs_bg.wasm next to the executable in build:binary
- */
-
-import type { PathOrFileDescriptor } from "fs";
-import { createRequire } from "module";
-import * as path from "path";
-import { fileURLToPath } from "url";
-
-const require = createRequire(import.meta.url);
-const fs = require("fs") as typeof import("fs");
-
 // Re-export types from the main package
 export type { PhotonImage as PhotonImageType } from "@silvia-odwyer/photon-node";
-
-type ReadFileSync = typeof fs.readFileSync;
-
-const WASM_FILENAME = "photon_rs_bg.wasm";
-
-// Lazy-loaded photon module
-let photonModule: typeof import("@silvia-odwyer/photon-node") | null = null;
-let loadPromise: Promise<typeof import("@silvia-odwyer/photon-node") | null> | null = null;
-
-function pathOrNull(file: PathOrFileDescriptor): string | null {
-	if (typeof file === "string") {
-		return file;
-	}
-	if (file instanceof URL) {
-		return fileURLToPath(file);
-	}
-	return null;
-}
-
-function getFallbackWasmPaths(): string[] {
-	const execDir = path.dirname(process.execPath);
-	return [
-		path.join(execDir, WASM_FILENAME),
-		path.join(execDir, "photon", WASM_FILENAME),
-		path.join(process.cwd(), WASM_FILENAME),
-	];
-}
-
-function patchPhotonWasmRead(): () => void {
-	const originalReadFileSync: ReadFileSync = fs.readFileSync.bind(fs);
-	const fallbackPaths = getFallbackWasmPaths();
-	const mutableFs = fs as { readFileSync: ReadFileSync };
-
-	const patchedReadFileSync: ReadFileSync = ((...args: Parameters<ReadFileSync>) => {
-		const [file, options] = args;
-		const resolvedPath = pathOrNull(file);
-
-		if (resolvedPath?.endsWith(WASM_FILENAME)) {
-			try {
-				return originalReadFileSync(...args);
-			} catch (error) {
-				const err = error as NodeJS.ErrnoException;
-				if (err?.code && err.code !== "ENOENT") {
-					throw error;
-				}
-
-				for (const fallbackPath of fallbackPaths) {
-					if (!fs.existsSync(fallbackPath)) {
-						continue;
-					}
-					if (options === undefined) {
-						return originalReadFileSync(fallbackPath);
-					}
-					return originalReadFileSync(fallbackPath, options);
-				}
-
-				throw error;
-			}
-		}
-
-		return originalReadFileSync(...args);
-	}) as ReadFileSync;
-
-	try {
-		mutableFs.readFileSync = patchedReadFileSync;
-	} catch {
-		Object.defineProperty(fs, "readFileSync", {
-			value: patchedReadFileSync,
-			writable: true,
-			configurable: true,
-		});
-	}
-
-	return () => {
-		try {
-			mutableFs.readFileSync = originalReadFileSync;
-		} catch {
-			Object.defineProperty(fs, "readFileSync", {
-				value: originalReadFileSync,
-				writable: true,
-				configurable: true,
-			});
-		}
-	};
-}
-
-/**
- * Load the photon module asynchronously.
- * Returns cached module on subsequent calls.
- */
-export async function loadPhoton(): Promise<typeof import("@silvia-odwyer/photon-node") | null> {
-	if (photonModule) {
-		return photonModule;
-	}
-
-	if (loadPromise) {
-		return loadPromise;
-	}
-
-	loadPromise = (async () => {
-		const restoreReadFileSync = patchPhotonWasmRead();
-		try {
-			photonModule = await import("@silvia-odwyer/photon-node");
-			return photonModule;
-		} catch {
-			photonModule = null;
-			return photonModule;
-		} finally {
-			restoreReadFileSync();
-		}
-	})();
-
-	return loadPromise;
-}

packages/pi-coding-agent/src/utils/tools-manager.ts

@@ -80,7 +80,7 @@ function commandExists(cmd: string): boolean {
 }
 
 // Get the path to a tool (system-wide or in our tools dir)
-export function getToolPath(tool: "fd" | "rg"): string | null {
+function getToolPath(tool: "fd" | "rg"): string | null {
 	const config = TOOLS[tool];
 	if (!config) return null;
 

packages/pi-tui/src/components/editor.ts

@@ -28,7 +28,7 @@ export interface TextChunk {
  * @param maxWidth - Maximum visible width per chunk
  * @returns Array of chunks with text and position information
  */
-export function wordWrapLine(line: string, maxWidth: number): TextChunk[] {
+function wordWrapLine(line: string, maxWidth: number): TextChunk[] {
 	if (!line || maxWidth <= 0) {
 		return [{ text: "", startIndex: 0, endIndex: 0 }];
 	}

packages/pi-tui/src/utils.ts

@@ -33,49 +33,6 @@ export function isPunctuationChar(char: string): boolean {
 	return PUNCTUATION_REGEX.test(char);
 }
 
-/**
- * Extract ANSI escape sequences from a string at the given position.
- */
-export function extractAnsiCode(str: string, pos: number): { code: string; length: number } | null {
-	if (pos >= str.length || str[pos] !== "\x1b") return null;
-
-	const next = str[pos + 1];
-
-	// CSI sequence: ESC [ ... m/G/K/H/J
-	if (next === "[") {
-		let j = pos + 2;
-		while (j < str.length && !/[mGKHJ]/.test(str[j]!)) j++;
-		if (j < str.length) return { code: str.substring(pos, j + 1), length: j + 1 - pos };
-		return null;
-	}
-
-	// OSC sequence: ESC ] ... BEL or ESC ] ... ST (ESC \)
-	// Used for hyperlinks (OSC 8), window titles, etc.
-	if (next === "]") {
-		let j = pos + 2;
-		while (j < str.length) {
-			if (str[j] === "\x07") return { code: str.substring(pos, j + 1), length: j + 1 - pos };
-			if (str[j] === "\x1b" && str[j + 1] === "\\") return { code: str.substring(pos, j + 2), length: j + 2 - pos };
-			j++;
-		}
-		return null;
-	}
-
-	// APC sequence: ESC _ ... BEL or ESC _ ... ST (ESC \)
-	// Used for cursor marker and application-specific commands
-	if (next === "_") {
-		let j = pos + 2;
-		while (j < str.length) {
-			if (str[j] === "\x07") return { code: str.substring(pos, j + 1), length: j + 1 - pos };
-			if (str[j] === "\x1b" && str[j + 1] === "\\") return { code: str.substring(pos, j + 2), length: j + 2 - pos };
-			j++;
-		}
-		return null;
-	}
-
-	return null;
-}
-
 // ---------------------------------------------------------------------------
 // Native text module wrappers
 // ---------------------------------------------------------------------------