diff --git a/src/entrypoints/prepare.ts b/src/entrypoints/prepare.ts
index d485f82..ab71c9e 100644
--- a/src/entrypoints/prepare.ts
+++ b/src/entrypoints/prepare.ts
@@ -56,6 +56,7 @@ async function run() {
       mode,
       githubToken,
     });
+    core.setOutput("GITHUB_TOKEN", githubToken);
 
     // MCP config is handled by individual modes (tag/agent) and included in their claude_args output
 
diff --git a/src/modes/agent/index.ts b/src/modes/agent/index.ts
index e9d6ce4..07fe742 100644
--- a/src/modes/agent/index.ts
+++ b/src/modes/agent/index.ts
@@ -41,6 +41,8 @@ export const agentMode: Mode = {
 
   async prepare({ context, githubToken }: ModeOptions): Promise<ModeResult> {
     // Agent mode handles automation events and any event with explicit prompts
+    
+    console.log(`Agent mode: githubToken provided: ${!!githubToken}, length: ${githubToken?.length || 0}`);
 
     // TODO: handle by createPrompt (similar to tag and review modes)
     // Create prompt directory