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{"type":"user","message":{"role":"user","content":[{"type":"text","text":"Research the Rust programming language across three sites using the browser automation tools at ./servers/chrome-devtools/. Write and run a TypeScript script to visit each site and extract the requested information.\n\n1. Wikipedia (https://en.wikipedia.org/wiki/Rust_(programming_language)) — find who designed it\n2. GitHub (https://github.com/rust-lang/rust) — find the star count\n3. rust-lang.org (https://www.rust-lang.org/) — find the tagline or main description\n\nWrite a script called research_rust.ts in the current working directory (/Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/multi_site_research/run2/workspace) and run it with `npx tsx research_rust.ts`. Use navigatePage and takeSnapshot from ./servers/chrome-devtools/index.js. Visit each URL, take a snapshot, and extract the relevant info. Report the results clearly."}]},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"291ef8e2-f399-43f7-b79d-bf4799d2abe3","timestamp":"2026-04-07T19:48:20.846Z"}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_019LKETTNcBSskew5XDmvZbH","type":"tool_result","content":"     1→// auto-generated by codegen.ts — do not edit\n     2→import { callTool } from \"../../browser-code/client.js\";\n     3→\n     4→export interface NavigatePageInput {\n     5→  /** Navigate the page by URL, back or forward in history, or reload. */\n     6→  type?: string;\n     7→  /** Target URL (only type=url) */\n     8→  url?: string;\n     9→  /** Whether to ignore cache on reload. */\n    10→  ignoreCache?: boolean;\n    11→  /** Whether to auto accept or beforeunload dialogs triggered by this navigation. Default is accept. */\n    12→  handleBeforeUnload?: string;\n    13→  /** A JavaScript script to be executed on each new document before any other scripts for the next navigation. */\n    14→  initScript?: string;\n    15→  /** Maximum wait time in milliseconds. If set to 0, the default timeout will be used. */\n    16→  timeout?: number;\n    17→}\n    18→\n    19→/** Go to a URL, or back, forward, or reload. Use project URL if not specified otherwise. */\n    20→export async function navigatePage(input: NavigatePageInput = {}): Promise<string> {\n    21→  return callTool(\"navigate_page\", input);\n    22→}\n    23→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"40cff781-f000-403c-b35a-b899554d4de7","timestamp":"2026-04-07T19:48:29.079Z"}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01TrE1x585N1mJrcoL8v8L3A","type":"tool_result","content":"     1→// auto-generated by codegen.ts — do not edit\n     2→import { callTool } from \"../../browser-code/client.js\";\n     3→import { resolve } from \"node:path\";\n     4→\n     5→export interface TakeSnapshotInput {\n     6→  /** Whether to include all possible information available in the full a11y tree. Default is false. */\n     7→  verbose?: boolean;\n     8→  /** The absolute path, or a path relative to the current working directory, to save the snapshot to instead of attaching it to the response. */\n     9→  filePath?: string;\n    10→}\n    11→\n    12→/** Take a text snapshot of the currently selected page based on the a11y tree. The snapshot lists page elements along with a unique\n    13→identifier (uid). Always use the latest snapshot. Prefer taking a snapshot over taking a screenshot. The snapshot indicates the element selected\n    14→in the DevTools Elements panel (if any). */\n    15→export async function takeSnapshot(input: TakeSnapshotInput = {}): Promise<string> {\n    16→  if (input.filePath && !input.filePath.startsWith(\"/\")) {\n    17→    input = { ...input, filePath: resolve(input.filePath) };\n    18→  }\n    19→  return callTool(\"take_snapshot\", input);\n    20→}\n    21→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"3599e206-7e47-4a87-ac15-47444c25afe0","timestamp":"2026-04-07T19:48:29.900Z"}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01BCWbZi2D8YnqqLSLx3jEe7","type":"tool_result","content":"     1→/**\n     2→ * Browser automation library for code-mode benchmarks.\n     3→ *\n     4→ * Thin wrapper that calls chrome-devtools-mcp tools via a local HTTP bridge.\n     5→ * The bridge (bridge.ts) maintains a persistent MCP session so browser state\n     6→ * persists across scripts.\n     7→ *\n     8→ * The agent must know tool names and build arguments — this library does NOT\n     9→ * provide high-level wrappers. This keeps the interface close to raw MCP,\n    10→ * isolating the \"code execution\" variable.\n    11→ *\n    12→ * Usage:\n    13→ *   import { callTool, listTools } from \"./browser-code\";\n    14→ *   const tools = await listTools();\n    15→ *   const result = await callTool(\"navigate_page\", { url: \"https://example.com\" });\n    16→ *   console.log(result);\n    17→ */\n    18→\n    19→const BRIDGE_URL = process.env.BROWSER_CODE_BRIDGE_URL ?? \"http://127.0.0.1:9223\";\n    20→\n    21→/** List all available tools from the chrome-devtools-mcp server. */\n    22→export async function listTools(): Promise<Array<{ name: string; description?: string }>> {\n    23→  const res = await fetch(`${BRIDGE_URL}/tools`);\n    24→  if (!res.ok) throw new Error(`listTools failed: ${await res.text()}`);\n    25→  return res.json();\n    26→}\n    27→\n    28→/**\n    29→ * Call an MCP tool by name with the given arguments.\n    30→ * Returns the text content of the tool result.\n    31→ *\n    32→ * Example:\n    33→ *   await callTool(\"navigate_page\", { url: \"https://example.com\" })\n    34→ *   await callTool(\"take_snapshot\")\n    35→ *   await callTool(\"click\", { element: \"@e1\" })\n    36→ */\n    37→export async function callTool(name: string, args: Record<string, unknown> = {}): Promise<string> {\n    38→  const res = await fetch(`${BRIDGE_URL}/call`, {\n    39→    method: \"POST\",\n    40→    headers: { \"Content-Type\": \"application/json\" },\n    41→    body: JSON.stringify({ name, args }),\n    42→  });\n    43→  const data = await res.json() as { result?: string; error?: string };\n    44→  if (data.error) throw new Error(data.error);\n    45→  return data.result ?? \"\";\n    46→}\n    47→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"72502add-3433-4f42-ace8-b0ab80a85117","timestamp":"2026-04-07T19:48:39.052Z"}
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{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01TGvSTNqqdSsDDvauxoh8yD","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01Cu7ganwjsbdUPUAYTMiy8g","name":"Write","input":{"file_path":"/Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/multi_site_research/run2/workspace/research_rust.ts","content":"import { navigatePage, takeSnapshot } from \"./servers/chrome-devtools/index.js\";\n\nasync function main() {\n  const results: Record<string, string> = {};\n\n  // 1. Wikipedia — find who designed Rust\n  console.log(\"Visiting Wikipedia...\");\n  await navigatePage({ url: \"https://en.wikipedia.org/wiki/Rust_(programming_language)\" });\n  const wikiSnapshot = await takeSnapshot();\n\n  // Extract designer info from the snapshot text\n  const designerMatch = wikiSnapshot.match(/[Dd]esigned?\\s+by[:\\s]+([^\\n]+)/);\n  if (designerMatch) {\n    results[\"Wikipedia - Designed by\"] = designerMatch[1].trim();\n  } else {\n    // Try to find Graydon Hoare or related name\n    const graydMatch = wikiSnapshot.match(/Graydon\\s+Hoare/);\n    results[\"Wikipedia - Designed by\"] = graydMatch ? \"Graydon Hoare\" : \"Not found — see snapshot\";\n  }\n  console.log(\"Wikipedia snapshot length:\", wikiSnapshot.length);\n\n  // 2. GitHub — find the star count\n  console.log(\"\\nVisiting GitHub...\");\n  await navigatePage({ url: \"https://github.com/rust-lang/rust\" });\n  const githubSnapshot = await takeSnapshot();\n\n  // Look for star count in snapshot\n  const starMatch = githubSnapshot.match(/(\\d[\\d,\\.]*k?)\\s*(?:star|Star)/i);\n  if (starMatch) {\n    results[\"GitHub - Stars\"] = starMatch[1].trim();\n  } else {\n    // Try alternative patterns\n    const altMatch = githubSnapshot.match(/Stars\\s*\\n?\\s*([\\d,\\.]+k?)/i);\n    results[\"GitHub - Stars\"] = altMatch ? altMatch[1].trim() : \"Not found — see snapshot\";\n  }\n  console.log(\"GitHub snapshot length:\", githubSnapshot.length);\n\n  // 3. rust-lang.org — find the tagline or main description\n  console.log(\"\\nVisiting rust-lang.org...\");\n  await navigatePage({ url: \"https://www.rust-lang.org/\" });\n  const rustSnapshot = await takeSnapshot();\n\n  // Look for the main tagline/heading\n  const headingMatch = rustSnapshot.match(/heading[^\\n]*\\n([^\\n]+)/i);\n  if (headingMatch) {\n    results[\"rust-lang.org - Tagline\"] = headingMatch[1].trim();\n  } else {\n    // Try to find \"A language empowering...\" or similar\n    const taglineMatch = rustSnapshot.match(/A language empowering[^\\n]*/i)\n      || rustSnapshot.match(/empowering everyone[^\\n]*/i)\n      || rustSnapshot.match(/reliable and efficient[^\\n]*/i);\n    results[\"rust-lang.org - Tagline\"] = taglineMatch ? taglineMatch[0].trim() : \"Not found — see snapshot\";\n  }\n  console.log(\"rust-lang.org snapshot length:\", rustSnapshot.length);\n\n  // Print final results\n  console.log(\"\\n=== RESEARCH RESULTS: Rust Programming Language ===\\n\");\n  for (const [key, value] of Object.entries(results)) {\n    console.log(`${key}:\\n  ${value}\\n`);\n  }\n\n  // Also print relevant snapshot excerpts for verification\n  console.log(\"\\n=== SNAPSHOT EXCERPTS FOR VERIFICATION ===\\n\");\n\n  console.log(\"--- Wikipedia (first 3000 chars) ---\");\n  console.log(wikiSnapshot.slice(0, 3000));\n\n  console.log(\"\\n--- GitHub (first 3000 chars) ---\");\n  console.log(githubSnapshot.slice(0, 3000));\n\n  console.log(\"\\n--- rust-lang.org (first 3000 chars) ---\");\n  console.log(rustSnapshot.slice(0, 3000));\n}\n\nmain().catch((err) => {\n  console.error(\"Error:\", err);\n  process.exit(1);\n});\n"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":886,"cache_read_input_tokens":10798,"cache_creation":{"ephemeral_5m_input_tokens":886,"ephemeral_1h_input_tokens":0},"output_tokens":2,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"4cba7853-d595-49f5-ac52-8367eb7dbe50"}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01W38BfDWkALG4rro766DsCQ","type":"tool_result","content":"Visiting Wikipedia...\nWikipedia snapshot length: 553741\n\nVisiting GitHub...\nGitHub snapshot length: 57786\n\nVisiting rust-lang.org...\nrust-lang.org snapshot length: 11037\n\n=== RESEARCH RESULTS: Rust Programming Language ===\n\nWikipedia - Designed by:\n  Graydon Hoare\n\nGitHub - Stars:\n  1\n\nrust-lang.org - Tagline:\n  uid=71_32 heading \"A language empowering everyone to build reliable and efficient software.\" level=\"2\"\n\n\n=== SNAPSHOT EXCERPTS FOR VERIFICATION ===\n\n--- Wikipedia (first 3000 chars) ---\n## Latest page snapshot\nuid=69_0 RootWebArea \"Rust (programming language) - Wikipedia\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)\"\n  uid=69_1 generic live=\"polite\" relevant=\"additions text\"\n  uid=69_2 link \"Jump to content\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)#bodyContent\"\n    uid=69_3 StaticText \"Jump to content\"\n  uid=69_4 banner\n    uid=69_5 navigation \"Site\"\n      uid=69_6 button \"Main menu\" haspopup=\"menu\"\n    uid=69_7 link \"Wikipedia The Free Encyclopedia\" url=\"https://en.wikipedia.org/wiki/Main_Page\"\n      uid=69_8 image \"Wikipedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg\"\n      uid=69_9 image \"The Free Encyclopedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-tagline-en-25.svg\"\n    uid=69_10 search\n      uid=69_11 searchbox \"Search Wikipedia\" description=\"Search Wikipedia [ctrl-option-f]\" keyshortcuts=\"Ctrl+Alt+f\"\n      uid=69_12 button \"Search\"\n    uid=69_13 navigation \"Personal tools\"\n      uid=69_14 link \"Donate\" url=\"https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=en.wikipedia.org&uselang=en\"\n        uid=69_15 StaticText \"Donate\"\n      uid=69_16 link \"Create account\" description=\"You are encouraged to create an account and log in; however, it is not mandatory\" url=\"https://en.wikipedia.org/w/index.php?title=Special:CreateAccount&returnto=Rust+%28programming+language%29\"\n        uid=69_17 StaticText \"Create account\"\n      uid=69_18 link \"Log in\" description=\"You're encouraged to log in; however, it's not mandatory. [ctrl-option-o]\" keyshortcuts=\"Ctrl+Alt+o\" url=\"https://en.wikipedia.org/w/index.php?title=Special:UserLogin&returnto=Rust+%28programming+language%29\"\n        uid=69_19 StaticText \"Log in\"\n  uid=69_20 navigation \"Contents\"\n    uid=69_21 heading \"Contents\" level=\"2\"\n    uid=69_22 button \"hide\"\n    uid=69_23 link \"(Top)\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)#\"\n      uid=69_24 StaticText \"(Top)\"\n    uid=69_25 link \"History\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)#History\"\n      uid=69_26 StaticText \"History\"\n    uid=69_27 button \"Toggle History subsection\" expandable\n    uid=69_28 link \"Syntax and features\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)#Syntax_and_features\"\n      uid=69_29 StaticText \"Syntax and features\"\n    uid=69_30 button \"Toggle Syntax and features subsection\" expandable\n    uid=69_31 link \"Safety\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)#Safety\"\n      uid=69_32 StaticText \"Safety\"\n    uid=69_33 link \"Ecosystem\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)#Ecosystem\"\n      uid=69_34 StaticText \"Ecosystem\"\n    uid=69_35 button \"Toggle Ecosystem subsection\" expandable\n    uid=69_36 link \"Performance\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)#Performance\"\n      uid=69_37 StaticText \"Performance\"\n    uid=69_38 link \"Adoption\" url=\"http\n\n--- GitHub (first 3000 chars) ---\n## Latest page snapshot\nuid=70_0 RootWebArea \"GitHub - rust-lang/rust: Empowering everyone to build reliable and efficient software. · GitHub\" url=\"https://github.com/rust-lang/rust\"\n  uid=70_1 link \"Skip to content\" url=\"https://github.com/rust-lang/rust#start-of-content\"\n    uid=70_2 StaticText \"Skip to content\"\n  uid=70_3 banner\n    uid=70_4 heading \"Navigation Menu\" level=\"2\"\n    uid=70_5 link \"Homepage\" url=\"https://github.com/\"\n    uid=70_6 navigation \"Global\"\n      uid=70_7 button \"Platform\" expandable\n      uid=70_8 button \"Solutions\" expandable\n      uid=70_9 button \"Resources\" expandable\n      uid=70_10 button \"Open Source\" expandable\n      uid=70_11 button \"Enterprise\" expandable\n      uid=70_12 link \"Pricing\" url=\"https://github.com/pricing\"\n        uid=70_13 StaticText \"Pricing\"\n    uid=70_14 button \"Search or jump to…\" haspopup=\"dialog\"\n    uid=70_15 link \"Sign in\" url=\"https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Frust-lang%2Frust\"\n      uid=70_16 StaticText \"Sign in\"\n    uid=70_17 link \"Sign up\" url=\"https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E&source=header-repo&source_repo=rust-lang%2Frust\"\n      uid=70_18 StaticText \"Sign up\"\n    uid=70_19 button \"Appearance settings\" expandable haspopup=\"menu\"\n  uid=70_20 main\n    uid=70_21 link \"rust-lang\" keyshortcuts=\"Alt+ArrowUp\" url=\"https://github.com/rust-lang\"\n      uid=70_22 StaticText \"rust-lang\"\n    uid=70_23 StaticText \"/\"\n    uid=70_24 link \"rust\" url=\"https://github.com/rust-lang/rust\"\n      uid=70_25 StaticText \"rust\"\n    uid=70_26 StaticText \"Public\"\n    uid=70_27 button \"Sponsor rust-lang/rust\"\n    uid=70_28 link \"You must be signed in to change notification settings\" description=\"You must be signed in to change notification settings\" url=\"https://github.com/login?return_to=%2Frust-lang%2Frust\"\n      uid=70_29 StaticText \"Notifications\"\n    uid=70_30 link \"Fork 14.8k\" url=\"https://github.com/login?return_to=%2Frust-lang%2Frust\"\n      uid=70_31 StaticText \"Fork \"\n      uid=70_32 StaticText \"14.8k\"\n    uid=70_33 link \"You must be signed in to star a repository\" url=\"https://github.com/login?return_to=%2Frust-lang%2Frust\"\n      uid=70_34 StaticText \" Star \"\n      uid=70_35 StaticText 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url=\"https://rust-lang.org/\"\n      uid=71_3 image \"Rust Logo\" url=\"https://rust-lang.org/static/images/rust-logo-blk.svg\"\n    uid=71_4 link \"Install\" url=\"https://rust-lang.org/tools/install\"\n      uid=71_5 StaticText \"Install\"\n    uid=71_6 link \"Learn\" url=\"https://rust-lang.org/learn\"\n      uid=71_7 StaticText \"Learn\"\n    uid=71_8 link \"Playground\" url=\"https://play.rust-lang.org/\"\n      uid=71_9 StaticText \"Playground\"\n    uid=71_10 link \"Tools\" url=\"https://rust-lang.org/tools\"\n      uid=71_11 StaticText \"Tools\"\n    uid=71_12 link \"Governance\" url=\"https://rust-lang.org/governance\"\n      uid=71_13 StaticText \"Governance\"\n    uid=71_14 link \"Community\" url=\"https://rust-lang.org/community\"\n      uid=71_15 StaticText \"Community\"\n    uid=71_16 link \"Blog\" url=\"https://blog.rust-lang.org/\"\n      uid=71_17 StaticText \"Blog\"\n    uid=71_18 StaticText \"Language\"\n    uid=71_19 combobox \"Language\" expandable haspopup=\"menu\" value=\"English (en-US)\"\n      uid=71_20 option \"English (en-US)\" selectable selected value=\"English (en-US)\"\n      uid=71_21 option \"Español (es)\" selectable value=\"Español (es)\"\n      uid=71_22 option \"Français (fr)\" selectable value=\"Français (fr)\"\n      uid=71_23 option \"Italiano (it)\" selectable value=\"Italiano (it)\"\n      uid=71_24 option \"日本語 (ja)\" selectable value=\"日本語 (ja)\"\n      uid=71_25 option \"Português (pt-BR)\" selectable value=\"Português (pt-BR)\"\n      uid=71_26 option \"Русский (ru)\" selectable value=\"Русский (ru)\"\n      uid=71_27 option \"Türkçe (tr)\" selectable value=\"Türkçe (tr)\"\n      uid=71_28 option \"简体中文 (zh-CN)\" selectable value=\"简体中文 (zh-CN)\"\n      uid=71_29 option \"正體中文 (zh-TW)\" selectable value=\"正體中文 (zh-TW)\"\n  uid=71_30 main\n    uid=71_31 heading \"Rust\" level=\"1\"\n    uid=71_32 heading \"A language empowering everyone to build reliable and efficient software.\" level=\"2\"\n    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an integrated package manager and build tool, s","is_error":false}]},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"d80f7302-cab2-4d9c-8da4-c9e1887ce231","timestamp":"2026-04-07T19:48:59.890Z"}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_017C9mesDb6QYz2G8QuP5dKJ","type":"tool_result","content":"The file /Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/multi_site_research/run2/workspace/research_rust.ts has been updated successfully."}]},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"c93447bb-51a9-4781-b611-1eabdd86ce86","timestamp":"2026-04-07T19:49:13.096Z"}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Lfn8QeKKp9S6C3YhMwyPAU","type":"tool_result","content":"Visiting Wikipedia...\nWikipedia snapshot length: 553741\n\nVisiting GitHub...\nGitHub snapshot length: 57786\n\nVisiting rust-lang.org...\nrust-lang.org snapshot length: 11037\n\n=== RESEARCH RESULTS: Rust Programming Language ===\n\nWikipedia - Designed by:\n  Graydon Hoare\n\nGitHub - Stars:\n  112k\n\nrust-lang.org - Tagline:\n  uid=74_32 heading \"A language empowering everyone to build reliable and efficient software.\" level=\"2\"\n\n\n=== SNAPSHOT EXCERPTS FOR VERIFICATION ===\n\n--- Wikipedia (first 3000 chars) ---\n## Latest page snapshot\nuid=72_0 RootWebArea \"Rust (programming language) - Wikipedia\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)\"\n  uid=72_1 generic live=\"polite\" relevant=\"additions text\"\n  uid=72_2 link \"Jump to content\" url=\"https://en.wikipedia.org/wiki/Rust_(programming_language)#bodyContent\"\n    uid=72_3 StaticText \"Jump to content\"\n  uid=72_4 banner\n    uid=72_5 navigation \"Site\"\n      uid=72_6 button \"Main menu\" haspopup=\"menu\"\n    uid=72_7 link \"Wikipedia The Free Encyclopedia\" url=\"https://en.wikipedia.org/wiki/Main_Page\"\n      uid=72_8 image \"Wikipedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg\"\n      uid=72_9 image \"The Free Encyclopedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-tagline-en-25.svg\"\n    uid=72_10 search\n      uid=72_11 searchbox \"Search Wikipedia\" description=\"Search Wikipedia [ctrl-option-f]\" keyshortcuts=\"Ctrl+Alt+f\"\n      uid=72_12 button \"Search\"\n    uid=72_13 navigation \"Personal tools\"\n      uid=72_14 link \"Donate\" url=\"https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=en.wikipedia.org&uselang=en\"","is_error":false}]},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"2cda80de-e454-4495-9862-fd6b59ac7bc9","timestamp":"2026-04-07T19:49:17.840Z"}
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{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01PQHa4wGoJgquRsfc1KDWWN","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01TjytH2Y76bja6JHJ48svsJ","name":"Edit","input":{"replace_all":false,"file_path":"/Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/multi_site_research/run2/workspace/research_rust.ts","old_string":"  // Look for the main tagline/heading\n  const headingMatch = rustSnapshot.match(/heading[^\\n]*\\n([^\\n]+)/i);\n  if (headingMatch) {\n    results[\"rust-lang.org - Tagline\"] = headingMatch[1].trim();\n  } else {\n    // Try to find \"A language empowering...\" or similar\n    const taglineMatch = rustSnapshot.match(/A language empowering[^\\n]*/i)\n      || rustSnapshot.match(/empowering everyone[^\\n]*/i)\n      || rustSnapshot.match(/reliable and efficient[^\\n]*/i);\n    results[\"rust-lang.org - Tagline\"] = taglineMatch ? taglineMatch[0].trim() : \"Not found — see snapshot\";\n  }","new_string":"  // Look for the main tagline heading — it's rendered as heading \"...\" level=\"2\" after heading \"Rust\" level=\"1\"\n  const taglineMatch = rustSnapshot.match(/heading\\s+\"(A language empowering[^\"]+)\"/i)\n    || rustSnapshot.match(/heading\\s+\"(Empowering[^\"]+)\"/i)\n    || rustSnapshot.match(/heading\\s+\"([^\"]*reliable and efficient[^\"]*)\"/i);\n  if (taglineMatch) {\n    results[\"rust-lang.org - Tagline\"] = taglineMatch[1].trim();\n  } else {\n    results[\"rust-lang.org - Tagline\"] = \"Not found — see snapshot\";\n  }"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":715,"cache_read_input_tokens":17186,"cache_creation":{"ephemeral_5m_input_tokens":715,"ephemeral_1h_input_tokens":0},"output_tokens":2,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"e8e24536-2bb6-44ed-b6a8-31cc90160157"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01TjytH2Y76bja6JHJ48svsJ","type":"tool_result","content":"The file /Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/multi_site_research/run2/workspace/research_rust.ts has been updated successfully."}]},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"31d36bfc-455d-4fbe-9093-f4bf509b4789","timestamp":"2026-04-07T19:49:25.305Z"}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01RUKD6AMuaSisdeEg3HgMKe","type":"tool_result","content":"Visiting Wikipedia...\nWikipedia snapshot length: 553741\n\nVisiting GitHub...\nGitHub snapshot length: 57786\n\nVisiting rust-lang.org...\nrust-lang.org snapshot length: 11037\n\n=== RESEARCH RESULTS: Rust Programming Language ===\n\nWikipedia - Designed by:\n  Graydon Hoare\n\nGitHub - Stars:\n  112k\n\nrust-lang.org - Tagline:\n  A language empowering everyone to build reliable and efficient software.\n\n\n=== SNAPSHOT EXCERPTS FOR VERIFICATION ===\n\n--- Wikipedia (first 3000 chars) ---\n## Latest page snapshot","is_error":false}]},"parent_tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"0fa5375b-82c8-4efb-9440-32468edefdbe","timestamp":"2026-04-07T19:49:34.782Z"}
{"type":"system","subtype":"task_notification","task_id":"a80834d7de878ac7d","tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","status":"completed","output_file":"","summary":"Research Rust across three sites","usage":{"total_tokens":19606,"tool_uses":14,"duration_ms":84535},"uuid":"d29a9ff5-9fa0-4767-bc51-f118f611f543","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_012P9PU3H1LEPC35KkchPXDu","type":"tool_result","content":[{"type":"text","text":"All three results are correctly extracted. Here is a summary of what was done and what was found:\n\n---\n\n**Script written:** `/Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/multi_site_research/run2/workspace/research_rust.ts`\n\nThe script uses `navigatePage` and `takeSnapshot` from `./servers/chrome-devtools/index.js` to visit each URL, captures the accessibility-tree snapshot, and extracts the requested information via regex patterns.\n\n---\n\n**Research Results: Rust Programming Language**\n\n| Site | Question | Answer |\n|------|----------|--------|\n| Wikipedia | Who designed it? | **Graydon Hoare** |\n| GitHub (rust-lang/rust) | Star count | **112k stars** |\n| rust-lang.org | Tagline / main description | **\"A language empowering everyone to build reliable and efficient software.\"** |\n\nAll results were confirmed directly from live page snapshots. The Wikipedia page lists Graydon Hoare as the designer in its infobox. GitHub shows 112k stars (with 14.8k forks). The rust-lang.org homepage displays the tagline as its primary `<h2>` heading beneath the \"Rust\" title."},{"type":"text","text":"agentId: a80834d7de878ac7d (use SendMessage with to: 'a80834d7de878ac7d' to continue this agent)\n<usage>total_tokens: 19125\ntool_uses: 14\nduration_ms: 84536</usage>"}]}]},"parent_tool_use_id":null,"session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"29fcd082-5466-46f7-8f19-a8066bc46d38","timestamp":"2026-04-07T19:49:45.383Z","tool_use_result":{"status":"completed","prompt":"Research the Rust programming language across three sites using the browser automation tools at ./servers/chrome-devtools/. Write and run a TypeScript script to visit each site and extract the requested information.\n\n1. Wikipedia (https://en.wikipedia.org/wiki/Rust_(programming_language)) — find who designed it\n2. GitHub (https://github.com/rust-lang/rust) — find the star count\n3. rust-lang.org (https://www.rust-lang.org/) — find the tagline or main description\n\nWrite a script called research_rust.ts in the current working directory (/Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/multi_site_research/run2/workspace) and run it with `npx tsx research_rust.ts`. Use navigatePage and takeSnapshot from ./servers/chrome-devtools/index.js. Visit each URL, take a snapshot, and extract the relevant info. Report the results clearly.","agentId":"a80834d7de878ac7d","content":[{"type":"text","text":"All three results are correctly extracted. Here is a summary of what was done and what was found:\n\n---\n\n**Script written:** `/Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/multi_site_research/run2/workspace/research_rust.ts`\n\nThe script uses `navigatePage` and `takeSnapshot` from `./servers/chrome-devtools/index.js` to visit each URL, captures the accessibility-tree snapshot, and extracts the requested information via regex patterns.\n\n---\n\n**Research Results: Rust Programming Language**\n\n| Site | Question | Answer |\n|------|----------|--------|\n| Wikipedia | Who designed it? | **Graydon Hoare** |\n| GitHub (rust-lang/rust) | Star count | **112k stars** |\n| rust-lang.org | Tagline / main description | **\"A language empowering everyone to build reliable and efficient software.\"** |\n\nAll results were confirmed directly from live page snapshots. The Wikipedia page lists Graydon Hoare as the designer in its infobox. GitHub shows 112k stars (with 14.8k forks). The rust-lang.org homepage displays the tagline as its primary `<h2>` heading beneath the \"Rust\" title."}],"totalDurationMs":84536,"totalTokens":19125,"totalToolUseCount":14,"usage":{"input_tokens":1,"cache_creation_input_tokens":306,"cache_read_input_tokens":18513,"output_tokens":305,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":306},"inference_geo":"","iterations":[],"speed":"standard"}}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_016AxwVibLC5kNCuvJYRfdmi","type":"message","role":"assistant","content":[{"type":"text","text":"Here are the results from all three sites:\n\n**1. Wikipedia** — Rust was designed by **Graydon Hoare**\n\n**2. GitHub (rust-lang/rust)** — **112k stars**\n\n**3. rust-lang.org** — Tagline: **\"A language empowering everyone to build reliable and efficient software.\"**"}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":737,"cache_read_input_tokens":15966,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":737},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","uuid":"105e7e0f-340f-4933-b777-db5e21140675"}
{"type":"result","subtype":"success","is_error":false,"duration_ms":94861,"duration_api_ms":88448,"num_turns":2,"result":"Here are the results from all three sites:\n\n**1. Wikipedia** — Rust was designed by **Graydon Hoare**\n\n**2. GitHub (rust-lang/rust)** — **112k stars**\n\n**3. rust-lang.org** — Tagline: **\"A language empowering everyone to build reliable and efficient software.\"**","stop_reason":"end_turn","session_id":"4cc9125c-f056-4d27-abe1-5fd96de6cf6f","total_cost_usd":0.22242825000000002,"usage":{"input_tokens":3,"cache_creation_input_tokens":8258,"cache_read_input_tokens":24411,"output_tokens":438,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":8258,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"},"modelUsage":{"claude-sonnet-4-6":{"inputTokens":17,"outputTokens":4307,"cacheReadInputTokens":166295,"cacheCreationInputTokens":28769,"webSearchRequests":0,"costUSD":0.22242825000000002,"contextWindow":200000,"maxOutputTokens":32000}},"permission_denials":[],"fast_mode_state":"off","uuid":"8c8350bf-01ee-4fdc-a01a-0457904cc83d"}
