From 86d064e10cd064f42bc38a206e6dec892320cc9f Mon Sep 17 00:00:00 2001
From: seekskyworld <djh1813553759@gmail.com>
Date: Fri, 4 Sep 2026 16:20:45 +0800
Subject: [PATCH] feat(web): expose Pi thinking state

Signed-off-by: seekskyworld <djh1813553759@gmail.com>
---
 web/host/web-host.ts      | 5 +++++
 web/runtime/pi-runtime.ts | 5 +++++
 web/runtime/types.ts      | 1 +
 3 files changed, 11 insertions(+)

diff --git a/web/host/web-host.ts b/web/host/web-host.ts
index 6203e647..11a5f6f4 100644
--- a/web/host/web-host.ts
+++ b/web/host/web-host.ts
@@ -557,6 +557,11 @@ export class WebHost {
     }
     if (url.pathname === "/api/models")
       return this.json(response, 200, { models: this.runtime.listModels() });
+    if (url.pathname === "/api/thinking")
+      return this.json(response, 200, {
+        sessionId: this.runtime.sessionManager.getSessionId(),
+        ...(this.runtime.getThinkingState?.() ?? { level: "unknown", available: [] }),
+      });
     if (url.pathname === "/api/snapshot") {
       const cursor = this.sequence;
       const projection = await this.adapter.getSnapshot(
diff --git a/web/runtime/pi-runtime.ts b/web/runtime/pi-runtime.ts
index cf792d39..c29d0cdc 100644
--- a/web/runtime/pi-runtime.ts
+++ b/web/runtime/pi-runtime.ts
@@ -265,6 +265,11 @@ export class PiWebRuntime implements WebRuntimeController {
     return () => this.listeners.delete(listener);
   }
 
+  getThinkingState() {
+    const session = this.runtime.session;
+    return { level: session.thinkingLevel, available: session.getAvailableThinkingLevels() };
+  }
+
   async sendPrompt(content: string, options?: WebPromptOptions) {
     this.assertActive();
     this.assertWorkspaceSelected();
diff --git a/web/runtime/types.ts b/web/runtime/types.ts
index 2b66c3f0..f464e178 100644
--- a/web/runtime/types.ts
+++ b/web/runtime/types.ts
@@ -61,6 +61,7 @@ export interface WebRuntimeController {
   ): Promise<WebSessionCreationResult>;
   switchSession(sessionPath: string): Promise<{ cancelled: boolean }>;
   listModels(): WebModelSummary[];
+  getThinkingState?(): { level: string; available: readonly string[] };
   setModel(
     provider: string,
     modelId: string,