From 7b04e6ac42ac62963ce033325a652e1bfc65689e Mon Sep 17 00:00:00 2001
From: Sebastian <sebslight@gmail.com>
Date: Wed, 14 Jan 2026 23:15:46 -0500
Subject: [PATCH] debug: add prefix template resolution logging

---
 src/auto-reply/reply/agent-runner-execution.ts | 3 +++
 src/auto-reply/reply/reply-dispatcher.ts       | 8 ++++++++
 2 files changed, 11 insertions(+)

diff --git a/src/auto-reply/reply/agent-runner-execution.ts b/src/auto-reply/reply/agent-runner-execution.ts
index d1f0e276d..b580dcc4b 100644
--- a/src/auto-reply/reply/agent-runner-execution.ts
+++ b/src/auto-reply/reply/agent-runner-execution.ts
@@ -127,6 +127,9 @@ export async function runAgentTurnWithFallback(params: {
         run: (provider, model) => {
           // Notify that model selection is complete (including after fallback).
           // This allows responsePrefix template interpolation with the actual model.
+          logVerbose(
+            `[prefix-debug] onModelSelected firing: provider=${provider} model=${model} thinkLevel=${params.followupRun.run.thinkLevel}`,
+          );
           params.opts?.onModelSelected?.({
             provider,
             model,
diff --git a/src/auto-reply/reply/reply-dispatcher.ts b/src/auto-reply/reply/reply-dispatcher.ts
index b8eeca477..4a45161d8 100644
--- a/src/auto-reply/reply/reply-dispatcher.ts
+++ b/src/auto-reply/reply/reply-dispatcher.ts
@@ -75,6 +75,14 @@ function normalizeReplyPayloadInternal(
   // Prefer dynamic context provider over static context
   const prefixContext = opts.responsePrefixContextProvider?.() ?? opts.responsePrefixContext;
 
+  // Debug logging for prefix template resolution
+  if (opts.responsePrefix?.includes("{")) {
+    // eslint-disable-next-line no-console
+    console.log(
+      `[prefix-debug] normalizing with context: ${JSON.stringify(prefixContext)} prefix: ${opts.responsePrefix}`,
+    );
+  }
+
   return normalizeReplyPayload(payload, {
     responsePrefix: opts.responsePrefix,
     responsePrefixContext: prefixContext,