diff --git a/package.json b/package.json
index c87b15c..2559805 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "@troed/oc-ls-stats",
-  "version": "0.0.55",
+  "version": "0.0.56",
   "type": "module",
   "exports": {
     "./tui": {
diff --git a/tui.tsx b/tui.tsx
index 66ea135..cdedc5d 100644
--- a/tui.tsx
+++ b/tui.tsx
@@ -3,7 +3,7 @@ import type { TuiPlugin, TuiPluginModule } from "@opencode-ai/plugin/tui"
 import { createMemo, createSignal } from "solid-js"
 import { appendFileSync } from "fs"
 
-const DEBUG_ENABLED = false
+const DEBUG_ENABLED = true
 const DEBUG_LOG = "/tmp/oc-ls-stats-debug.log"
 function debug(...args: unknown[]) {
   if (!DEBUG_ENABLED) return
@@ -383,6 +383,7 @@ const tui: TuiPlugin = async (api) => {
         const now = Date.now()
         const nt = prefillSlot.n_prompt_tokens ?? 0
         const npp = prefillSlot.n_prompt_tokens_processed ?? 0
+        debug(`prefill slot=${slotId} full=${JSON.stringify(prefillSlot)} total=${nt} processed=${npp} ratio=${npp > 0 && nt > 0 ? ((npp / nt) * 100).toFixed(1) : 'N/A'}% allSlots=${JSON.stringify(slotList)}`)
 
         tracker.prefillTotalTokens = nt
         tracker.prefillProcessedTokens = npp