diff --git a/changelog.md b/changelog.md
index bdf33e5..0bc271b 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2026-03-06 - 3.0.2 - fix(agent)
+use output parameter when invoking onToolResult instead of toolCall.result
+
+- Replace (toolCall as any).result with the explicit output parameter when calling options.onToolResult.
+- Prevents undefined/misread results by aligning the callback with the tool runner's output signature.
+
 ## 2026-03-06 - 3.0.1 - fix(readme)
 adjust ASCII art in README to fix box widths and spacing in agent diagram
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index ade0180..83fa11b 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartagent',
-  version: '3.0.1',
+  version: '3.0.2',
   description: 'Agentic loop for ai-sdk (Vercel AI SDK). Wraps streamText with stopWhen for parallel multi-step tool execution. Built on @push.rocks/smartai.'
 }
diff --git a/ts/smartagent.classes.agent.ts b/ts/smartagent.classes.agent.ts
index 2849a85..665017c 100644
--- a/ts/smartagent.classes.agent.ts
+++ b/ts/smartagent.classes.agent.ts
@@ -142,8 +142,8 @@ export async function runAgent(options: IAgentRunOptions): Promise<IAgentRunResu
           : undefined,
 
         experimental_onToolCallFinish: options.onToolResult
-          ? ({ toolCall }) => {
-              options.onToolResult!(toolCall.toolName, (toolCall as any).result);
+          ? ({ toolCall, output }) => {
+              options.onToolResult!(toolCall.toolName, output);
             }
           : undefined,