diff --git a/.changeset/tui-export-all-messages.md b/.changeset/tui-export-all-messages.md
new file mode 100644
index 0000000000..302f995a45
--- /dev/null
+++ b/.changeset/tui-export-all-messages.md
@@ -0,0 +1,5 @@
+---
+"@kilocode/cli": patch
+---
+
+Export all messages from TUI instead of truncated store
diff --git a/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx b/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx
index 21b0ca4bcb..1d0b5c091a 100644
--- a/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx
+++ b/packages/opencode/src/cli/cmd/tui/routes/session/index.tsx
@@ -1017,10 +1017,16 @@ export function Session() {
         try {
           const sessionData = session()
           if (!sessionData) return
-          const sessionMessages = messages()
+          // kilocode_change start - fetch all messages from server instead of truncated sync store
+          const allMessages = await sdk.client.session.messages({ sessionID: sessionData.id }, { throwOnError: true })
+          const sessionMessages = allMessages.data.map((msg) => ({
+            info: msg.info,
+            parts: msg.parts,
+          }))
+          // kilocode_change end
           const transcript = formatTranscript(
             sessionData,
-            sessionMessages.map((msg) => ({ info: msg, parts: sync.data.part[msg.id] ?? [] })),
+            sessionMessages, // kilocode_change
             {
               thinking: showThinking(),
               toolDetails: showDetails(),
@@ -1048,7 +1054,6 @@ export function Session() {
         try {
           const sessionData = session()
           if (!sessionData) return
-          const sessionMessages = messages()
 
           const defaultFilename = `session-${sessionData.id.slice(0, 8)}.md`
 
@@ -1063,9 +1068,17 @@ export function Session() {
 
           if (options === null) return
 
+          // kilocode_change start - fetch all messages from server instead of truncated sync store
+          const allMessages = await sdk.client.session.messages({ sessionID: sessionData.id }, { throwOnError: true })
+          const sessionMessages = allMessages.data.map((msg) => ({
+            info: msg.info,
+            parts: msg.parts,
+          }))
+          // kilocode_change end
+
           const transcript = formatTranscript(
             sessionData,
-            sessionMessages.map((msg) => ({ info: msg, parts: sync.data.part[msg.id] ?? [] })),
+            sessionMessages, // kilocode_change
             {
               thinking: options.thinking,
               toolDetails: options.toolDetails,