feat(ai): add max thinking level

packages/agent/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Added
+
+- Added the `max` model thinking level after `xhigh`.
+
 ## [0.80.5] - 2026-07-09
 
 ## [0.80.4] - 2026-07-09

packages/agent/README.md

@@ -164,7 +164,7 @@ const agent = new Agent({
   initialState: {
     systemPrompt: string,
     model: Model<any>,
-    thinkingLevel: "off" | "minimal" | "low" | "medium" | "high" | "xhigh",
+    thinkingLevel: "off" | "minimal" | "low" | "medium" | "high" | "xhigh" | "max",
     tools: AgentTool<any>[],
     messages: AgentMessage[],
   },

packages/agent/src/types.ts

@@ -283,10 +283,10 @@ export interface AgentLoopConfig extends SimpleStreamOptions {
 
 /**
  * Thinking/reasoning level for models that support it.
- * Note: "xhigh" is only supported by selected model families. Use model thinking-level metadata
- * from @earendil-works/pi-ai to detect support for a concrete model.
+ * Note: "xhigh" and "max" are only supported by selected model families. Use model
+ * thinking-level metadata from @earendil-works/pi-ai to detect support for a concrete model.
  */
-export type ThinkingLevel = "off" | "minimal" | "low" | "medium" | "high" | "xhigh";
+export type ThinkingLevel = "off" | "minimal" | "low" | "medium" | "high" | "xhigh" | "max";
 
 /**
  * Extensible interface for custom app messages.