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value : undefined;\n}\n\nfunction readConfigDirNameFromPackageRoot(packageRoot: string | undefined): string | undefined {\n\tif (!packageRoot) return undefined;\n\ttry {\n\t\tconst pkg = JSON.parse(fs.readFileSync(path.join(packageRoot, \"package.json\"), \"utf-8\")) as {\n\t\t\tname?: unknown;\n\t\t\tpiConfig?: { configDir?: unknown };\n\t\t};\n\t\tif (pkg.name !== PI_CODING_AGENT_PACKAGE_NAME) return undefined;\n\t\treturn validConfigDirName(pkg.piConfig?.configDir);\n\t} catch {\n\t\treturn undefined;\n\t}\n}\n\nfunction resolveConfigDirNameFromPackageJson(\n\tentryPoint = process.argv[1],\n\tpackageRoot = process.env[PI_CODING_AGENT_PACKAGE_ROOT_ENV],\n): string | undefined {\n\tconst packageRootValue = readConfigDirNameFromPackageRoot(packageRoot);\n\tif (packageRootValue) return packageRootValue;\n\tif (!entryPoint) return undefined;\n\ttry {\n\t\tlet dir = path.dirname(fs.realpathSync(entryPoint));\n\t\twhile (dir !== path.dirname(dir)) {\n\t\t\tconst value = readConfigDirNameFromPackageRoot(dir);\n\t\t\tif (value) return value;\n\t\t\tdir = path.dirname(dir);\n\t\t}\n\t} catch {\n\t\t// Package metadata lookup is best-effort; detached runners must not fail here.\n\t}\n\treturn undefined;\n}\n\nexport function resolveConfigDirName(codingAgentModule?: unknown, entryPoint?: string, packageRoot?: string): string {\n\tconst moduleValue =\n\t\tcodingAgentModule && typeof codingAgentModule === \"object\"\n\t\t\t? validConfigDirName((codingAgentModule as { CONFIG_DIR_NAME?: unknown }).CONFIG_DIR_NAME)\n\t\t\t: undefined;\n\treturn moduleValue ?? resolveConfigDirNameFromPackageJson(entryPoint, packageRoot) ?? DEFAULT_CONFIG_DIR_NAME;\n}\n\nlet cachedConfigDirName: { entryPoint: string | undefined; packageRoot: string | undefined; value: string } | undefined;\n\nexport function getConfigDirName(): string {\n\tconst entryPoint = process.argv[1];\n\tconst packageRoot = process.env[PI_CODING_AGENT_PACKAGE_ROOT_ENV];\n\tif (\n\t\tcachedConfigDirName &&\n\t\tcachedConfigDirName.entryPoint === entryPoint &&\n\t\tcachedConfigDirName.packageRoot === packageRoot\n\t) {\n\t\treturn cachedConfigDirName.value;\n\t}\n\tconst value = resolveConfigDirName(undefined, entryPoint, packageRoot);\n\tcachedConfigDirName = { entryPoint, packageRoot, value };\n\treturn value;\n}\n\nexport function getProjectConfigDir(projectRoot: string): string {\n\treturn path.join(projectRoot, getConfigDirName());\n}\n\nexport function getAgentDir(): string {\n\tconst configured = process.env.PI_CODING_AGENT_DIR;\n\tif (configured === \"~\") return os.homedir();\n\tif (configured?.startsWith(\"~/\")) return path.join(os.homedir(), configured.slice(2));\n\treturn configured || path.join(os.homedir(), getConfigDirName(), \"agent\");\n}\n\nconst statusCache = new Map<string, { mtime: number; ctime: number; size: number; ino: number; status: AsyncStatus }>();\n\nfunction getErrorMessage(error: unknown): string {\n\treturn error instanceof Error ? error.message : String(error);\n}\n\nexport function resolveChildCwd(baseCwd: string, childCwd: string | undefined): string {\n\tif (!childCwd) return baseCwd;\n\treturn path.isAbsolute(childCwd) ? childCwd : path.resolve(baseCwd, childCwd);\n}\n\nfunction isNotFoundError(error: unknown): boolean {\n\treturn (\n\t\ttypeof error === \"object\" &&\n\t\terror !== null &&\n\t\t\"code\" in error &&\n\t\t(error as NodeJS.ErrnoException).code === \"ENOENT\"\n\t);\n}\n\n/**\n * Read async job status from disk (with mtime-based caching)\n */\nexport function readStatus(asyncDir: string): AsyncStatus | null {\n\tconst statusPath = path.join(asyncDir, \"status.json\");\n\n\tlet stat: fs.Stats;\n\ttry {\n\t\tstat = fs.statSync(statusPath);\n\t} catch (error) {\n\t\tif (isNotFoundError(error)) return null;\n\t\tthrow new Error(`Failed to inspect async status file '${statusPath}': ${getErrorMessage(error)}`, {\n\t\t\tcause: error instanceof Error ? error : undefined,\n\t\t});\n\t}\n\n\tconst cached = statusCache.get(statusPath);\n\tif (\n\t\tcached &&\n\t\tcached.mtime === stat.mtimeMs &&\n\t\tcached.ctime === stat.ctimeMs &&\n\t\tcached.size === stat.size &&\n\t\tcached.ino === stat.ino\n\t) {\n\t\treturn cached.status;\n\t}\n\n\tlet content: string;\n\ttry {\n\t\tcontent = fs.readFileSync(statusPath, \"utf-8\");\n\t} catch (error) {\n\t\tif (isNotFoundError(error)) return null;\n\t\tthrow new Error(`Failed to read async status file '${statusPath}': ${getErrorMessage(error)}`, {\n\t\t\tcause: error instanceof Error ? error : undefined,\n\t\t});\n\t}\n\n\tlet status: AsyncStatus;\n\ttry {\n\t\tstatus = JSON.parse(content) as AsyncStatus;\n\t} catch (error) {\n\t\tthrow new Error(`Failed to parse async status file '${statusPath}': ${getErrorMessage(error)}`, {\n\t\t\tcause: error instanceof Error ? error : undefined,\n\t\t});\n\t}\n\n\tstatusCache.set(statusPath, {\n\t\tmtime: stat.mtimeMs,\n\t\tctime: stat.ctimeMs,\n\t\tsize: stat.size,\n\t\tino: stat.ino,\n\t\tstatus,\n\t});\n\tif (statusCache.size > 50) {\n\t\tconst firstKey = statusCache.keys().next().value;\n\t\tif (firstKey) statusCache.delete(firstKey);\n\t}\n\treturn status;\n}\n\nconst outputTailCache = new Map<string, { mtime: number; size: number; lines: string[] }>();\n\n/**\n * Get the last N lines from an output file (with mtime/size-based caching)\n */\nfunction _getOutputTail(outputFile: string | undefined, maxLines: number = 3): string[] {\n\tif (!outputFile) return [];\n\tlet fd: number | null = null;\n\ttry {\n\t\tconst stat = fs.statSync(outputFile);\n\t\tif (stat.size === 0) return [];\n\n\t\tconst cached = outputTailCache.get(outputFile);\n\t\tif (cached && cached.mtime === stat.mtimeMs && cached.size === stat.size) {\n\t\t\treturn cached.lines;\n\t\t}\n\n\t\tconst tailBytes = 4096;\n\t\tconst start = Math.max(0, stat.size - tailBytes);\n\t\tfd = fs.openSync(outputFile, \"r\");\n\t\tconst buffer = Buffer.alloc(Math.min(tailBytes, stat.size));\n\t\tfs.readSync(fd, buffer, 0, buffer.length, start);\n\t\tconst content = buffer.toString(\"utf-8\");\n\t\tconst allLines = content.split(\"\\n\").filter((l) => l.trim());\n\t\tconst lines = allLines.slice(-maxLines).map((l) => l.slice(0, 120) + (l.length > 120 ? \"...\" : \"\"));\n\n\t\toutputTailCache.set(outputFile, { mtime: stat.mtimeMs, size: stat.size, lines });\n\t\tif (outputTailCache.size > 20) {\n\t\t\tconst firstKey = outputTailCache.keys().next().value;\n\t\t\tif (firstKey) outputTailCache.delete(firstKey);\n\t\t}\n\n\t\treturn lines;\n\t} catch {\n\t\t// Output tails are UI-only hints; unreadable or missing files should render as no tail.\n\t\treturn [];\n\t} finally {\n\t\tif (fd !== null) {\n\t\t\ttry {\n\t\t\t\tfs.closeSync(fd);\n\t\t\t} catch {\n\t\t\t\t// Closing the best-effort tail file handle should not surface over the main status view.\n\t\t\t}\n\t\t}\n\t}\n}\n\n/**\n * Get human-readable last activity time for a file\n */\nexport function getLastActivity(outputFile: string | undefined): string {\n\tif (!outputFile) return \"\";\n\ttry {\n\t\tconst stat = fs.statSync(outputFile);\n\t\tconst ago = Date.now() - stat.mtimeMs;\n\t\tif (ago < 1000) return \"active now\";\n\t\tif (ago < 60000) return `active ${Math.floor(ago / 1000)}s ago`;\n\t\treturn `active ${Math.floor(ago / 60000)}m ago`;\n\t} catch {\n\t\t// Last-activity text is best effort; missing files should simply omit the hint.\n\t\treturn \"\";\n\t}\n}\n\n/**\n * Find the latest session file in a directory\n */\nexport function findLatestSessionFile(sessionDir: string): string | null {\n\tif (!fs.existsSync(sessionDir)) return null;\n\tconst files = fs\n\t\t.readdirSync(sessionDir)\n\t\t.filter((f) => f.endsWith(\".jsonl\"))\n\t\t.map((f) => {\n\t\t\tconst filePath = path.join(sessionDir, f);\n\t\t\treturn {\n\t\t\t\tpath: filePath,\n\t\t\t\tmtime: fs.statSync(filePath).mtimeMs,\n\t\t\t};\n\t\t})\n\t\t.sort((a, b) => b.mtime - a.mtime);\n\tconst latest = files[0];\n\treturn latest ? latest.path : null;\n}\n\n/**\n * Write a prompt to a temporary file\n */\nfunction _writePrompt(agent: string, prompt: string): { dir: string; path: string } {\n\tconst dir = fs.mkdtempSync(path.join(os.tmpdir(), \"pi-subagent-\"));\n\tconst p = path.join(dir, `${agent.replace(/[^\\w.-]/g, \"_\")}.md`);\n\tfs.writeFileSync(p, prompt, { mode: 0o600 });\n\treturn { dir, path: p };\n}\n\n// ============================================================================\n// Message Parsing Utilities\n// ============================================================================\n\n/**\n * Get the final text output from a list of messages\n */\nexport function getFinalOutput(messages: Message[]): string {\n\tconst validTextParts: string[] = [];\n\tfor (let i = messages.length - 1; i >= 0; i--) {\n\t\tconst msg = messages[i];\n\t\tif (!msg || msg.role !== \"assistant\") continue;\n\t\tconst hasAssistantError =\n\t\t\t(\"errorMessage\" in msg && typeof msg.errorMessage === \"string\" && msg.errorMessage.length > 0) ||\n\t\t\t(\"stopReason\" in msg && msg.stopReason === \"error\");\n\t\tif (hasAssistantError) continue;\n\t\tconst messageText = msg.content\n\t\t\t.filter((part) => part.type === \"text\" && part.text.trim().length > 0)\n\t\t\t.map((part) => (part.type === \"text\" ? part.text : \"\"))\n\t\t\t.join(\"\\n\");\n\t\tfor (let j = msg.content.length - 1; j >= 0; j--) {\n\t\t\tconst part = msg.content[j];\n\t\t\tif (!part || part.type !== \"text\" || part.text.trim().length === 0) continue;\n\t\t\tvalidTextParts.push(part.text);\n\t\t\tif (/```acceptance[-_]report\\s*\\n[\\s\\S]*?```/i.test(part.text)) return messageText;\n\t\t\tfor (const match of part.text.matchAll(/```(?:json|jsonc|json5)\\s*\\n([\\s\\S]*?)```/gi)) {\n\t\t\t\tconst body = match[1] ?? \"\";\n\t\t\t\tif (\n\t\t\t\t\t/\"(?:criteriaSatisfied|criteria_satisfied)\"/.test(body) &&\n\t\t\t\t\t/\"(?:changedFiles|changed_files|testsAddedOrUpdated|tests_added_or_updated|commandsRun|commands_run|validationOutput|validation_output|residualRisks|residual_risks|noStagedFiles|no_staged_files|diffSummary|diff_summary|reviewFindings|review_findings|manualNotes|manual_notes)\"/.test(\n\t\t\t\t\t\tbody,\n\t\t\t\t\t)\n\t\t\t\t) {\n\t\t\t\t\treturn messageText;\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (/ACCEPTANCE_REPORT\\s*:/i.test(part.text)) return messageText;\n\t\t}\n\t}\n\treturn validTextParts[0] ?? \"\";\n}\n\nexport function getSingleResultOutput(result: Pick<SingleResult, \"finalOutput\" | \"messages\">): string {\n\treturn result.finalOutput ?? getFinalOutput(result.messages ?? []);\n}\n\n/**\n * Extract display items (text and tool calls) from messages\n */\nexport function getDisplayItems(messages: Message[] | undefined): DisplayItem[] {\n\tif (!messages || messages.length === 0) return [];\n\tconst items: DisplayItem[] = [];\n\tfor (const msg of messages) {\n\t\tif (msg.role === \"assistant\") {\n\t\t\tfor (const part of msg.content) {\n\t\t\t\tif (part.type === \"text\") items.push({ type: \"text\", text: part.text });\n\t\t\t\telse if (part.type === \"toolCall\") items.push({ type: \"tool\", name: part.name, args: part.arguments });\n\t\t\t}\n\t\t}\n\t}\n\treturn items;\n}\n\nfunction compactCompletedProgress(progress: AgentProgress): AgentProgress {\n\tif (progress.status === \"running\") return progress;\n\treturn {\n\t\tindex: progress.index,\n\t\tagent: progress.agent,\n\t\tstatus: progress.status,\n\t\tactivityState: progress.activityState,\n\t\ttask: progress.task,\n\t\tskills: progress.skills,\n\t\ttoolCount: progress.toolCount,\n\t\ttokens: progress.tokens,\n\t\tdurationMs: progress.durationMs,\n\t\terror: progress.error,\n\t\tfailedTool: progress.failedTool,\n\t\trecentTools: [],\n\t\trecentOutput: [],\n\t};\n}\n\nfunction extractToolCallSummaries(messages: Message[] | undefined): ToolCallSummary[] {\n\tif (!messages?.length) return [];\n\tconst summaries: ToolCallSummary[] = [];\n\tfor (const msg of messages) {\n\t\tif (msg.role !== \"assistant\") continue;\n\t\tfor (const part of msg.content) {\n\t\t\tif (part.type !== \"toolCall\") continue;\n\t\t\tconst args =\n\t\t\t\ttypeof part.arguments === \"object\" && part.arguments !== null && !Array.isArray(part.arguments)\n\t\t\t\t\t? part.arguments\n\t\t\t\t\t: {};\n\t\t\tsummaries.push({\n\t\t\t\ttext: formatToolCall(part.name, args),\n\t\t\t\texpandedText: formatToolCall(part.name, args, true),\n\t\t\t});\n\t\t}\n\t}\n\treturn summaries;\n}\n\nexport function sumResultsUsage(results: SingleResult[]): Usage {\n\tconst usage: Usage = { input: 0, output: 0, cacheRead: 0, cacheWrite: 0, cost: 0, turns: 0 };\n\tfor (const result of results) {\n\t\tusage.input += result.usage.input;\n\t\tusage.output += result.usage.output;\n\t\tusage.cacheRead += result.usage.cacheRead;\n\t\tusage.cacheWrite += result.usage.cacheWrite;\n\t\tusage.cost += result.usage.cost;\n\t\tusage.turns += result.usage.turns;\n\t}\n\treturn usage;\n}\n\nfunction addNestedCost(total: NonNullable<Details[\"totalCost\"]>, children: NestedRunSummary[] | undefined): void {\n\tfor (const child of children ?? []) {\n\t\tif (child.totalCost) {\n\t\t\ttotal.inputTokens += child.totalCost.inputTokens;\n\t\t\ttotal.outputTokens += child.totalCost.outputTokens;\n\t\t\ttotal.costUsd += child.totalCost.costUsd;\n\t\t\tcontinue;\n\t\t}\n\t\taddNestedCost(total, child.children);\n\t\tfor (const step of child.steps ?? []) addNestedCost(total, step.children);\n\t}\n}\n\n/** Sum input tokens, output tokens, and cost across a set of SingleResults. */\nexport function sumResultsCost(results: SingleResult[]): NonNullable<Details[\"totalCost\"]> {\n\tconst total = { inputTokens: 0, outputTokens: 0, costUsd: 0 };\n\tfor (const result of results) {\n\t\ttotal.inputTokens += result.usage.input;\n\t\ttotal.outputTokens += result.usage.output;\n\t\ttotal.costUsd += result.usage.cost;\n\t\taddNestedCost(total, result.children);\n\t}\n\treturn total;\n}\n\nexport function compactForegroundResult(result: SingleResult): SingleResult {\n\tif (result.progress?.status === \"running\") return result;\n\tconst toolCalls = result.toolCalls?.length ? result.toolCalls : extractToolCallSummaries(result.messages);\n\treturn {\n\t\t...result,\n\t\tmessages: undefined,\n\t\tprogress: undefined,\n\t\ttoolCalls: toolCalls.length ? toolCalls : undefined,\n\t};\n}\n\nexport function compactForegroundDetails(details: Details): Details {\n\treturn {\n\t\t...details,\n\t\tresults: details.results.map(compactForegroundResult),\n\t\tprogress: details.progress ? details.progress.map(compactCompletedProgress) : undefined,\n\t};\n}\n\n/**\n * Streaming counterparts to compactForegroundResult / compactCompletedProgress.\n *\n * The completed-compaction helpers above bail out while a child is still\n * `running`, so a long or deeply nested fan-out streams full, unbounded progress on\n * every tick. Pi serializes each streamed `tool_execution_update` as a single\n * child-stdout line, which the parent reads under `MAX_CHILD_PENDING_LINE_BYTES`;\n * an unbounded running snapshot can cross that cap and kill the child with\n * `protocol_output_limit`.\n *\n * These bound the STREAMED snapshot only. The final returned result keeps the full\n * live progress and message transcript, and every live-display consumer already\n * reads just the last few entries (`recentTools.slice(-3)`, `recentOutput.slice(-5)`).\n */\nexport const MAX_STREAMED_RECENT_TOOLS = 32;\nexport const MAX_STREAMED_TOOL_CALLS = 64;\nexport const MAX_STREAMED_OUTPUT_LINE_CHARS = 2000;\n\n/** Keep only the most recent tool-history entries in a streamed snapshot. */\nexport function boundStreamedRecentTools(recentTools: AgentProgress[\"recentTools\"]): AgentProgress[\"recentTools\"] {\n\treturn recentTools.slice(-MAX_STREAMED_RECENT_TOOLS).map((tool) => ({ ...tool }));\n}\n\n/** Cap per-line length of recent output so one long line can't inflate a snapshot. */\nexport function boundStreamedRecentOutput(recentOutput: string[]): string[] {\n\treturn recentOutput.map((line) =>\n\t\tline.length > MAX_STREAMED_OUTPUT_LINE_CHARS\n\t\t\t? `${line.slice(0, MAX_STREAMED_OUTPUT_LINE_CHARS)}… [truncated]`\n\t\t\t: line,\n\t);\n}\n\n/**\n * Compact tool-call summaries for a streamed snapshot, standing in for the\n * unbounded `messages` transcript. Prefers an existing `toolCalls` summary, else\n * derives one from `messages`; bounded to the most recent calls.\n */\nexport function boundStreamedToolCalls(\n\tresult: Pick<SingleResult, \"toolCalls\" | \"messages\">,\n): ToolCallSummary[] | undefined {\n\tconst summaries = result.toolCalls?.length ? result.toolCalls : extractToolCallSummaries(result.messages);\n\tif (!summaries.length) return undefined;\n\treturn summaries.slice(-MAX_STREAMED_TOOL_CALLS).map((summary) => ({ ...summary }));\n}\n\nexport function hasEmptyTerminalAssistantResponse(messages: Message[]): boolean {\n\tconst lastAssistant = messages.findLast((message) => message.role === \"assistant\");\n\treturn (\n\t\tlastAssistant?.role === \"assistant\" &&\n\t\tArray.isArray(lastAssistant.content) &&\n\t\tlastAssistant.content.length === 0 &&\n\t\tlastAssistant.usage.output === 0\n\t);\n}\n\n/**\n * Detect errors in subagent execution from messages (only errors with no subsequent success)\n */\nexport function detectSubagentError(messages: Message[]): ErrorInfo {\n\tlet lastAssistantTextIndex = -1;\n\tfor (let i = messages.length - 1; i >= 0; i--) {\n\t\tconst msg = messages[i];\n\t\tif (msg?.role === \"assistant\") {\n\t\t\tconst hasText =\n\t\t\t\tArray.isArray(msg.content) &&\n\t\t\t\tmsg.content.some(\n\t\t\t\t\t(c) => c.type === \"text\" && \"text\" in c && typeof c.text === \"string\" && c.text.trim().length > 0,\n\t\t\t\t);\n\t\t\tif (hasText) {\n\t\t\t\tlastAssistantTextIndex = i;\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t}\n\n\tconst scanStart = lastAssistantTextIndex >= 0 ? lastAssistantTextIndex + 1 : 0;\n\n\tfor (let i = messages.length - 1; i >= scanStart; i--) {\n\t\tconst msg = messages[i];\n\t\tif (!msg || msg.role !== \"toolResult\") continue;\n\t\tconst toolName = \"toolName\" in msg && typeof msg.toolName === \"string\" ? msg.toolName : undefined;\n\t\tconst isError = \"isError\" in msg && msg.isError === true;\n\n\t\tif (!isError) continue;\n\n\t\tconst text = msg.content.find((c) => c.type === \"text\");\n\t\tconst details = text && \"text\" in text ? text.text : undefined;\n\t\tconst exitMatch = details?.match(/exit(?:ed)?\\s*(?:with\\s*)?(?:code|status)?\\s*[:\\s]?\\s*(\\d+)/i);\n\t\tconst exitCodeText = exitMatch?.[1];\n\t\treturn {\n\t\t\thasError: true,\n\t\t\texitCode: exitCodeText ? parseInt(exitCodeText, 10) : 1,\n\t\t\terrorType: toolName || \"tool\",\n\t\t\tdetails: details?.slice(0, 200),\n\t\t};\n\t}\n\n\treturn { hasError: false };\n}\n\n/**\n * Extract a preview of tool arguments for display\n */\nexport function extractToolArgsPreview(args: Record<string, unknown>): string {\n\tconst truncatePreview = (value: string, maxLength: number): string =>\n\t\tvalue.length > maxLength ? `${value.slice(0, maxLength - 3)}...` : value;\n\n\tconst stringifyPreviewValue = (value: unknown): string | undefined => {\n\t\tif (typeof value === \"string\" && value.trim().length > 0) return value;\n\t\tif (typeof value === \"number\" || typeof value === \"boolean\") return String(value);\n\t\treturn undefined;\n\t};\n\n\tconst previewArray = (value: unknown): string | undefined => {\n\t\tif (!Array.isArray(value) || value.length === 0) return undefined;\n\t\tconst first = stringifyPreviewValue(value[0]);\n\t\tif (!first) return undefined;\n\t\tconst suffix = value.length > 1 ? ` (+${value.length - 1} more)` : \"\";\n\t\treturn `${first}${suffix}`;\n\t};\n\n\t// Handle MCP tool calls - show server/tool info\n\tif (args.tool && typeof args.tool === \"string\") {\n\t\tconst server = args.server && typeof args.server === \"string\" ? `${args.server}/` : \"\";\n\t\tconst toolArgs = args.args && typeof args.args === \"string\" ? ` ${args.args.slice(0, 40)}` : \"\";\n\t\treturn `${server}${args.tool}${toolArgs}`;\n\t}\n\n\tconst queriesPreview = previewArray(args.queries);\n\tif (queriesPreview) return truncatePreview(queriesPreview, 60);\n\tif (typeof args.query === \"string\" && args.query.trim().length > 0) return truncatePreview(args.query, 60);\n\tif (typeof args.workflow === \"string\" && args.workflow.trim().length > 0)\n\t\treturn `workflow=${truncatePreview(args.workflow, 48)}`;\n\n\tif (typeof args.url === \"string\" && args.url.trim().length > 0) return truncatePreview(args.url, 60);\n\tconst urlsPreview = previewArray(args.urls);\n\tif (urlsPreview) return truncatePreview(urlsPreview, 60);\n\tif (typeof args.prompt === \"string\" && args.prompt.trim().length > 0) return truncatePreview(args.prompt, 60);\n\n\tconst previewKeys = [\"command\", \"path\", \"file_path\", \"pattern\", \"query\", \"url\", \"task\", \"describe\", \"search\"];\n\tfor (const key of previewKeys) {\n\t\tif (args[key] && typeof args[key] === \"string\") {\n\t\t\tconst value = args[key] as string;\n\t\t\treturn truncatePreview(value, 60);\n\t\t}\n\t}\n\n\t// Fallback: show first string value found\n\tfor (const [key, value] of Object.entries(args)) {\n\t\tconst arrayPreview = previewArray(value);\n\t\tif (arrayPreview) return `${key}=${truncatePreview(arrayPreview, 50)}`;\n\t\tif (typeof value === \"string\" && value.length > 0) {\n\t\t\tconst preview = truncatePreview(value, 50);\n\t\t\treturn `${key}=${preview}`;\n\t\t}\n\t}\n\treturn \"\";\n}\n\n/**\n * Extract text content from various message content formats\n */\nexport function extractTextFromContent(content: unknown): string {\n\tif (!content) return \"\";\n\t// Handle string content directly\n\tif (typeof content === \"string\") return content;\n\t// Handle array content\n\tif (!Array.isArray(content)) return \"\";\n\tconst texts: string[] = [];\n\tfor (const part of content) {\n\t\tif (part && typeof part === \"object\") {\n\t\t\t// Handle { type: \"text\", text: \"...\" }\n\t\t\tif (\"type\" in part && part.type === \"text\" && \"text\" in part) {\n\t\t\t\ttexts.push(String(part.text));\n\t\t\t}\n\t\t\t// Handle { type: \"tool_result\", content: \"...\" }\n\t\t\telse if (\"type\" in part && part.type === \"tool_result\" && \"content\" in part) {\n\t\t\t\tconst inner = extractTextFromContent(part.content);\n\t\t\t\tif (inner) texts.push(inner);\n\t\t\t}\n\t\t\t// Handle { text: \"...\" } without type\n\t\t\telse if (\"text\" in part) {\n\t\t\t\ttexts.push(String(part.text));\n\t\t\t}\n\t\t}\n\t}\n\treturn texts.join(\"\\n\");\n}\n\n// ============================================================================\n// Concurrency Utilities\n// ============================================================================\n\nexport { mapConcurrent } from \"../runs/shared/parallel-utils.ts\";\n"]}