feat: add assistant metadata to session export (#6611)

packages/opencode/src/cli/cmd/tui/routes/session/index.tsx

@@ -68,6 +68,7 @@ import { usePromptRef } from "../../context/prompt"
 import { Filesystem } from "@/util/filesystem"
 import { PermissionPrompt } from "./permission"
 import { DialogExportOptions } from "../../ui/dialog-export-options"
+import { formatTranscript } from "../../util/transcript"
 
 addDefaultParsers(parsers.parsers)
 
@@ -134,6 +135,7 @@ export function Session() {
   const [showTimestamps, setShowTimestamps] = createSignal(kv.get("timestamps", "hide") === "show")
   const [usernameVisible, setUsernameVisible] = createSignal(kv.get("username_visible", true))
   const [showDetails, setShowDetails] = createSignal(kv.get("tool_details_visibility", true))
+  const [showAssistantMetadata, setShowAssistantMetadata] = createSignal(kv.get("assistant_metadata_visibility", true))
   const [showScrollbar, setShowScrollbar] = createSignal(kv.get("scrollbar_visible", false))
   const [diffWrapMode, setDiffWrapMode] = createSignal<"word" | "none">("word")
   const [animationsEnabled, setAnimationsEnabled] = createSignal(kv.get("animations_enabled", true))
@@ -712,47 +714,17 @@ export function Session() {
       category: "Session",
       onSelect: async (dialog) => {
         try {
-          // Format session transcript as markdown
           const sessionData = session()
           const sessionMessages = messages()
-
-          let transcript = `# ${sessionData.title}\n\n`
-          transcript += `**Session ID:** ${sessionData.id}\n`
-          transcript += `**Created:** ${new Date(sessionData.time.created).toLocaleString()}\n`
-          transcript += `**Updated:** ${new Date(sessionData.time.updated).toLocaleString()}\n\n`
-          transcript += `---\n\n`
-
-          for (const msg of sessionMessages) {
-            const parts = sync.data.part[msg.id] ?? []
-            const role = msg.role === "user" ? "User" : "Assistant"
-            transcript += `## ${role}\n\n`
-
-            for (const part of parts) {
-              if (part.type === "text" && !part.synthetic) {
-                transcript += `${part.text}\n\n`
-              } else if (part.type === "reasoning") {
-                if (showThinking()) {
-                  transcript += `_Thinking:_\n\n${part.text}\n\n`
-                }
-              } else if (part.type === "tool") {
-                transcript += `\`\`\`\nTool: ${part.tool}\n`
-                if (showDetails() && part.state.input) {
-                  transcript += `\n**Input:**\n\`\`\`json\n${JSON.stringify(part.state.input, null, 2)}\n\`\`\``
-                }
-                if (showDetails() && part.state.status === "completed" && part.state.output) {
-                  transcript += `\n**Output:**\n\`\`\`\n${part.state.output}\n\`\`\``
-                }
-                if (showDetails() && part.state.status === "error" && part.state.error) {
-                  transcript += `\n**Error:**\n\`\`\`\n${part.state.error}\n\`\`\``
-                }
-                transcript += `\n\`\`\`\n\n`
-              }
-            }
-
-            transcript += `---\n\n`
-          }
-
-          // Copy to clipboard
+          const transcript = formatTranscript(
+            sessionData,
+            sessionMessages.map((msg) => ({ info: msg, parts: sync.data.part[msg.id] ?? [] })),
+            {
+              thinking: showThinking(),
+              toolDetails: showDetails(),
+              assistantMetadata: showAssistantMetadata(),
+            },
+          )
           await Clipboard.copy(transcript)
           toast.show({ message: "Session transcript copied to clipboard!", variant: "success" })
         } catch (error) {
@@ -762,75 +734,56 @@ export function Session() {
       },
     },
     {
-      title: "Export session transcript to file",
+      title: "Export session transcript",
       value: "session.export",
       keybind: "session_export",
       category: "Session",
       onSelect: async (dialog) => {
         try {
-          // Format session transcript as markdown
           const sessionData = session()
           const sessionMessages = messages()
 
           const defaultFilename = `session-${sessionData.id.slice(0, 8)}.md`
 
-          const options = await DialogExportOptions.show(dialog, defaultFilename, showThinking(), showDetails())
+          const options = await DialogExportOptions.show(
+            dialog,
+            defaultFilename,
+            showThinking(),
+            showDetails(),
+            showAssistantMetadata(),
+            false,
+          )
 
           if (options === null) return
 
-          const { filename: customFilename, thinking: includeThinking, toolDetails: includeToolDetails } = options
+          const transcript = formatTranscript(
+            sessionData,
+            sessionMessages.map((msg) => ({ info: msg, parts: sync.data.part[msg.id] ?? [] })),
+            {
+              thinking: options.thinking,
+              toolDetails: options.toolDetails,
+              assistantMetadata: options.assistantMetadata,
+            },
+          )
 
-          let transcript = `# ${sessionData.title}\n\n`
-          transcript += `**Session ID:** ${sessionData.id}\n`
-          transcript += `**Created:** ${new Date(sessionData.time.created).toLocaleString()}\n`
-          transcript += `**Updated:** ${new Date(sessionData.time.updated).toLocaleString()}\n\n`
-          transcript += `---\n\n`
+          if (options.openWithoutSaving) {
+            // Just open in editor without saving
+            await Editor.open({ value: transcript, renderer })
+          } else {
+            const exportDir = process.cwd()
+            const filename = options.filename.trim()
+            const filepath = path.join(exportDir, filename)
 
-          for (const msg of sessionMessages) {
-            const parts = sync.data.part[msg.id] ?? []
-            const role = msg.role === "user" ? "User" : "Assistant"
-            transcript += `## ${role}\n\n`
+            await Bun.write(filepath, transcript)
 
-            for (const part of parts) {
-              if (part.type === "text" && !part.synthetic) {
-                transcript += `${part.text}\n\n`
-              } else if (part.type === "reasoning") {
-                if (includeThinking) {
-                  transcript += `_Thinking:_\n\n${part.text}\n\n`
-                }
-              } else if (part.type === "tool") {
-                transcript += `\`\`\`\nTool: ${part.tool}\n`
-                if (includeToolDetails && part.state.input) {
-                  transcript += `\n**Input:**\n\`\`\`json\n${JSON.stringify(part.state.input, null, 2)}\n\`\`\``
-                }
-                if (includeToolDetails && part.state.status === "completed" && part.state.output) {
-                  transcript += `\n**Output:**\n\`\`\`\n${part.state.output}\n\`\`\``
-                }
-                if (includeToolDetails && part.state.status === "error" && part.state.error) {
-                  transcript += `\n**Error:**\n\`\`\`\n${part.state.error}\n\`\`\``
-                }
-                transcript += `\n\`\`\`\n\n`
-              }
+            // Open with EDITOR if available
+            const result = await Editor.open({ value: transcript, renderer })
+            if (result !== undefined) {
+              await Bun.write(filepath, result)
             }
 
-            transcript += `---\n\n`
+            toast.show({ message: `Session exported to ${filename}`, variant: "success" })
           }
-
-          // Save to file in current working directory
-          const exportDir = process.cwd()
-          const filename = customFilename.trim()
-          const filepath = path.join(exportDir, filename)
-
-          await Bun.write(filepath, transcript)
-
-          // Open with EDITOR if available
-          const result = await Editor.open({ value: transcript, renderer })
-          if (result !== undefined) {
-            // User edited the file, save the changes
-            await Bun.write(filepath, result)
-          }
-
-          toast.show({ message: `Session exported to ${filename}`, variant: "success" })
         } catch (error) {
           toast.show({ message: "Failed to export session", variant: "error" })
         }