feat(coding-agent): add ctx.reload and reload-runtime example closes #1371

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

@@ -147,6 +147,8 @@ export type NavigateTreeHandler = (
 
 export type SwitchSessionHandler = (sessionPath: string) => Promise<{ cancelled: boolean }>;
 
+export type ReloadHandler = () => Promise<void>;
+
 export type ShutdownHandler = () => void;
 
 /**
@@ -210,6 +212,7 @@ export class ExtensionRunner {
 	private forkHandler: ForkHandler = async () => ({ cancelled: false });
 	private navigateTreeHandler: NavigateTreeHandler = async () => ({ cancelled: false });
 	private switchSessionHandler: SwitchSessionHandler = async () => ({ cancelled: false });
+	private reloadHandler: ReloadHandler = async () => {};
 	private shutdownHandler: ShutdownHandler = () => {};
 	private shortcutDiagnostics: ResourceDiagnostic[] = [];
 	private commandDiagnostics: ResourceDiagnostic[] = [];
@@ -269,6 +272,7 @@ export class ExtensionRunner {
 			this.forkHandler = actions.fork;
 			this.navigateTreeHandler = actions.navigateTree;
 			this.switchSessionHandler = actions.switchSession;
+			this.reloadHandler = actions.reload;
 			return;
 		}
 
@@ -277,6 +281,7 @@ export class ExtensionRunner {
 		this.forkHandler = async () => ({ cancelled: false });
 		this.navigateTreeHandler = async () => ({ cancelled: false });
 		this.switchSessionHandler = async () => ({ cancelled: false });
+		this.reloadHandler = async () => {};
 	}
 
 	setUIContext(uiContext?: ExtensionUIContext): void {
@@ -501,6 +506,7 @@ export class ExtensionRunner {
 			fork: (entryId) => this.forkHandler(entryId),
 			navigateTree: (targetId, options) => this.navigateTreeHandler(targetId, options),
 			switchSession: (sessionPath) => this.switchSessionHandler(sessionPath),
+			reload: () => this.reloadHandler(),
 		};
 	}
 

packages/coding-agent/src/core/extensions/types.ts

@@ -306,6 +306,9 @@ export interface ExtensionCommandContext extends ExtensionContext {
 
 	/** Switch to a different session file. */
 	switchSession(sessionPath: string): Promise<{ cancelled: boolean }>;
+
+	/** Reload extensions, skills, prompts, and themes. */
+	reload(): Promise<void>;
 }
 
 // ============================================================================
@@ -1234,6 +1237,7 @@ export interface ExtensionCommandContextActions {
 		options?: { summarize?: boolean; customInstructions?: string; replaceInstructions?: boolean; label?: string },
 	) => Promise<{ cancelled: boolean }>;
 	switchSession: (sessionPath: string) => Promise<{ cancelled: boolean }>;
+	reload: () => Promise<void>;
 }
 
 /**

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

@@ -1068,6 +1068,9 @@ export class InteractiveMode {
 					await this.handleResumeSession(sessionPath);
 					return { cancelled: false };
 				},
+				reload: async () => {
+					await this.handleReloadCommand();
+				},
 			},
 			shutdownHandler: () => {
 				this.shutdownRequested = true;

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

@@ -63,6 +63,9 @@ export async function runPrintMode(session: AgentSession, options: PrintModeOpti
 				const success = await session.switchSession(sessionPath);
 				return { cancelled: !success };
 			},
+			reload: async () => {
+				await session.reload();
+			},
 		},
 		onError: (err) => {
 			console.error(`Extension error (${err.extensionPath}): ${err.error}`);

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

@@ -295,6 +295,9 @@ export async function runRpcMode(session: AgentSession): Promise<never> {
 				const success = await session.switchSession(sessionPath);
 				return { cancelled: !success };
 			},
+			reload: async () => {
+				await session.reload();
+			},
 		},
 		shutdownHandler: () => {
 			shutdownRequested = true;