diff --git a/reports/openclaw-patch-inventory.md b/reports/openclaw-patch-inventory.md
index 908e9a9..e37c69e 100644
--- a/reports/openclaw-patch-inventory.md
+++ b/reports/openclaw-patch-inventory.md
@@ -45,6 +45,8 @@ Observed patch points:
 
 - raw callback debug file path:
   - `reply-end-debug.log`
+- pre-answer callback debug write:
+  - `[pre-answer] ... data=...`
 - persisted state file path:
   - `reply-end-controls.json`
 - callback click handling:
diff --git a/reports/pluginization-status-report.md b/reports/pluginization-status-report.md
index 342a1eb..b35a335 100644
--- a/reports/pluginization-status-report.md
+++ b/reports/pluginization-status-report.md
@@ -74,6 +74,8 @@ The project now has:
 
 The apply/rollback flow has been validated against a pristine extracted `openclaw@2026.5.7` package.
 
+The live acceptance loop has also shown why observability matters: a pre-answer callback debug write was needed to separate Telegram callback ingress from later acknowledgement failures. That instrumentation is now part of the current PoC patch flow.
+
 ## What is still not pluginized enough
 
 ### 1. Live OpenClaw runtime still uses inline patch behavior
diff --git a/scripts/apply-openclaw-poc-patch.sh b/scripts/apply-openclaw-poc-patch.sh
index 0e1dfd9..7d44b31 100644
--- a/scripts/apply-openclaw-poc-patch.sh
+++ b/scripts/apply-openclaw-poc-patch.sh
@@ -53,8 +53,9 @@ if 'import fsSync from "node:fs";' not in bot_text:
 old_raw = 'const data = (callback.data ?? "").trim();'
 new_raw = '''const data = (callback.data ?? "").trim();
 			const replyEndDebugPath = path.join(process.env.OPENCLAW_STATE_DIR || path.join(process.env.HOME || "", ".openclaw"), "reply-end-debug.log");
+			try { fsSync.appendFileSync(replyEndDebugPath, `[pre-answer] ${new Date().toISOString()} data=${data || "<empty>"}\n`); } catch {}
 			try { fsSync.appendFileSync(replyEndDebugPath, `[raw] ${new Date().toISOString()} data=${data || "<empty>"}\n`); } catch {}'''
-if old_raw in bot_text and 'reply-end-debug.log' not in bot_text:
+if old_raw in bot_text and '[pre-answer]' not in bot_text:
     bot_text = bot_text.replace(old_raw, new_raw, 1)
 
 old_click = '''const chatId = callbackMessage.chat.id;