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{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_016hoDay1GaCyvkh1twQBycx","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"Let me research Rust across three sites using the dev-browser CLI.","signature":"Ev8BClsIDBgCKkC2G/T/uDy13UqSpmXOGfbRVza1Fq1f8T7Qb5e1ENVbRSfuveXmpkmNei3lpecMT3dlBZowtvWup4rQp85NEw81MhFjbGF1ZGUtc29ubmV0LTQtNjgAEgytH60rEAqL9UsN5M8aDBPJNef8cOe/CI8QRCIwuzGX9I8IkQl9uS+q0SJw+03OtADVTnzxYj9nZwPMMjhllNn/0dybW5rd1fYZdpHaKlIMAOK7wsu8O4mjXXVqa9c23HWKpj95/rIBRQ17nQ+DflVj4cJaYQaly1IypwsSmkKUeWILycuTMkuuLXrhKwxBEucOxJcmrtFvSn5+WqXHMNUgGAE="}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":7341,"cache_read_input_tokens":8603,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":7341},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"56c1f832-815b-41f1-a6de-2ce877283fb1"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_016hoDay1GaCyvkh1twQBycx","type":"message","role":"assistant","content":[{"type":"text","text":"I'll research all three sites in parallel using separate scripts."}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":7341,"cache_read_input_tokens":8603,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":7341},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"b2b82b46-7abc-45d2-b691-b324b13e7648"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_016hoDay1GaCyvkh1twQBycx","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01RMNg6sFmjgtJxraNzELaWZ","name":"Bash","input":{"command":"cat << 'EOF' > /tmp/wiki_rust.js\nconst page = await browser.newPage();\nawait page.goto('https://en.wikipedia.org/wiki/Rust_(programming_language)');\nawait page.waitForSelector('#firstHeading');\nconst content = await page.evaluate(() => {\n  const infobox = document.querySelector('.infobox');\n  if (infobox) return infobox.innerText;\n  return document.querySelector('#mw-content-text').innerText.slice(0, 2000);\n});\nconsole.log(content);\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run3 run /tmp/wiki_rust.js","description":"Fetch Wikipedia page for Rust designer info"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":7341,"cache_read_input_tokens":8603,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":7341},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"5e8e4624-28c9-4395-a5b2-afaf80153f11"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01RMNg6sFmjgtJxraNzELaWZ","type":"tool_result","content":"Rust\n\nParadigms\tConcurrentfunctionalgenericimperativestructured\nDeveloper\tThe Rust Team\nFirst appeared\tJanuary 19, 2012; 14 years ago\n\nStable release\t\n1.94.1[1]  / March 26, 2026; 7 days ago\n\nTyping discipline\tAffineinferrednominalstaticstrong\nImplementation language\tOCaml (2006–2011)\nRust (2012–present)\nPlatform\tCross-platform[note 1]\nOS\tCross-platform[note 2]\nLicense\tMIT, Apache 2.0[note 3]\nFilename extensions\t.rs, .rlib\nWebsite\trust-lang.org\nInfluenced by\nAlefBETACLUC#C++CycloneElmErlangHaskellHermesLimboMesaNapierNewsqueakNIL[note 4]OCamlRubySatherSchemeStandard MLSwift[7][8]\nInfluenced\nIdris[9]Project Verona[10]SPARK[11]Swift[12]V[13]Zig[14]Gleam[15]","is_error":false}]},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"97f89371-035e-4a93-a2b9-b59c183d415b","timestamp":"2026-04-03T09:36:27.959Z","tool_use_result":{"stdout":"Rust\n\nParadigms\tConcurrentfunctionalgenericimperativestructured\nDeveloper\tThe Rust Team\nFirst appeared\tJanuary 19, 2012; 14 years ago\n\nStable release\t\n1.94.1[1]  / March 26, 2026; 7 days ago\n\nTyping discipline\tAffineinferrednominalstaticstrong\nImplementation language\tOCaml (2006–2011)\nRust (2012–present)\nPlatform\tCross-platform[note 1]\nOS\tCross-platform[note 2]\nLicense\tMIT, Apache 2.0[note 3]\nFilename extensions\t.rs, .rlib\nWebsite\trust-lang.org\nInfluenced by\nAlefBETACLUC#C++CycloneElmErlangHaskellHermesLimboMesaNapierNewsqueakNIL[note 4]OCamlRubySatherSchemeStandard MLSwift[7][8]\nInfluenced\nIdris[9]Project Verona[10]SPARK[11]Swift[12]V[13]Zig[14]Gleam[15]","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_016hoDay1GaCyvkh1twQBycx","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01F7V53TQS3RZYxmtsvrQxUJ","name":"Bash","input":{"command":"cat << 'EOF' > /tmp/github_rust.js\nconst page = await browser.newPage();\nawait page.goto('https://github.com/rust-lang/rust');\nawait page.waitForSelector('#repository-container-header', {timeout: 15000});\nconst content = await page.evaluate(() => {\n  const stars = document.querySelector('[href*=\"/stargazers\"]');\n  return stars ? stars.innerText : 'not found';\n});\nconsole.log('Stars:', content);\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run3 run /tmp/github_rust.js","description":"Fetch GitHub repo star count for rust-lang/rust"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":7341,"cache_read_input_tokens":8603,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":7341},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"88e7283a-66b2-4655-934c-471f3b06ef4d"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01F7V53TQS3RZYxmtsvrQxUJ","type":"tool_result","content":"Stars:  112k stars","is_error":false}]},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"140bcb46-b67b-47a8-86de-c44111620586","timestamp":"2026-04-03T09:36:30.487Z","tool_use_result":{"stdout":"Stars:  112k stars","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_016hoDay1GaCyvkh1twQBycx","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01C5FFvWWjqLYxZCQN7tEMTQ","name":"Bash","input":{"command":"cat << 'EOF' > /tmp/rustlang.js\nconst page = await browser.newPage();\nawait page.goto('https://www.rust-lang.org/');\nawait page.waitForSelector('h1', {timeout: 15000});\nconst content = await page.evaluate(() => {\n  const h1 = document.querySelector('h1');\n  const tagline = document.querySelector('h1 + p, .tagline, [class*=\"tagline\"], h1 ~ p');\n  return {\n    h1: h1 ? h1.innerText : 'not found',\n    tagline: tagline ? tagline.innerText : 'not found'\n  };\n});\nconsole.log(JSON.stringify(content));\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run3 run /tmp/rustlang.js","description":"Fetch rust-lang.org tagline/main description"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":7341,"cache_read_input_tokens":8603,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":7341},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"7c1cbbf6-fbdc-4304-b177-b22a9a7be823"}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01C5FFvWWjqLYxZCQN7tEMTQ","type":"tool_result","content":"{\"h1\":\"Rust\",\"tagline\":\"not found\"}","is_error":false}]},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"818bf556-8973-4ad7-b853-e7aea09119d1","timestamp":"2026-04-03T09:36:31.037Z","tool_use_result":{"stdout":"{\"h1\":\"Rust\",\"tagline\":\"not found\"}","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01FLxEgDwK77PqemA2RF8FwE","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"The Wikipedia result shows \"Developer: The Rust Team\" but I need the designer. Let me get more specific info from Wikipedia. Also let me get more content from rust-lang.org.","signature":"EusCClsIDBgCKkBiQTPCep3cr7K8ABv45PFoUxnOiRnOSmBCOWYz/KHBugjkyHAaOuRsEl+WbHpdgOzhd4ovJAImEeTbVNzT0hS3MhFjbGF1ZGUtc29ubmV0LTQtNjgAEgzlfE0Y3gO7uUBiTiYaDODQNw8LlevvfkwVwSIwhjqAhrDsjeyk0Sqfsl59HXdYIdJorQrU9+Uz5fyboy2yVGWO57CEnQem+roNyJWMKr0BGgYEfZ8gHRgvRnkDD92xjw9Va6Bac0JMV7m6dnIfaURli+Tq4r1yJNpQbm7v9WAgFrIH3/SnqyNUz6T31vrcnDsjVGFPYeXe/O5edI6Zdw+KVvXUYw985XAnNVWXeBpZRUVrSd+V3RJVmKmln12S90n1ZKmFL8MYWJGvILcG+URk5BDXlRr797ssSaka7tfNO+W0n335D6TbHAo/AZh9STx2vCXIiDYGSVKT76laX8VJD7CG06Bl4QN9LiVvGAE="}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1174,"cache_read_input_tokens":15944,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1174},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"f57e5c49-f35b-4607-a645-edd3ebe76b15"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01FLxEgDwK77PqemA2RF8FwE","type":"message","role":"assistant","content":[{"type":"text","text":"Let me get more details from Wikipedia and rust-lang.org."}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1174,"cache_read_input_tokens":15944,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1174},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"ff63d389-cae2-4a6b-ae1f-ef3c6a9e3261"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01FLxEgDwK77PqemA2RF8FwE","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01HPCgUZmrykMYUJS7Nzh1ZW","name":"Bash","input":{"command":"cat << 'EOF' > /tmp/wiki_rust2.js\nconst page = await browser.newPage();\nawait page.goto('https://en.wikipedia.org/wiki/Rust_(programming_language)');\nawait page.waitForSelector('#firstHeading');\nconst content = await page.evaluate(() => {\n  // Look for \"Designed by\" in infobox\n  const rows = document.querySelectorAll('.infobox tr');\n  for (const row of rows) {\n    const th = row.querySelector('th');\n    const td = row.querySelector('td');\n    if (th && td && th.innerText.toLowerCase().includes('design')) {\n      return th.innerText + ': ' + td.innerText;\n    }\n  }\n  // Also get first paragraph\n  const firstPara = document.querySelector('#mw-content-text .mw-parser-output > p:not(.mw-empty-elt)');\n  return firstPara ? firstPara.innerText : 'not found';\n});\nconsole.log(content);\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run3 run /tmp/wiki_rust2.js","description":"Get designer info from Wikipedia infobox"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1174,"cache_read_input_tokens":15944,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1174},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"165f11d0-5662-45f4-bd3d-197d6a0e992d"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01HPCgUZmrykMYUJS7Nzh1ZW","type":"tool_result","content":"Rust is a general-purpose programming language. It is noted for its emphasis on performance, type safety, concurrency, and memory safety.","is_error":false}]},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"4a12ddb7-4e5d-47ba-ab7e-969425405483","timestamp":"2026-04-03T09:36:38.021Z","tool_use_result":{"stdout":"Rust is a general-purpose programming language. It is noted for its emphasis on performance, type safety, concurrency, and memory safety.","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01FLxEgDwK77PqemA2RF8FwE","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01RPqvnKkaNrQ1kLBzEeFAu8","name":"Bash","input":{"command":"cat << 'EOF' > /tmp/rustlang2.js\nconst page = await browser.newPage();\nawait page.goto('https://www.rust-lang.org/');\nawait page.waitForSelector('h1', {timeout: 15000});\nconst content = await page.evaluate(() => {\n  // Get all text near the top of the page\n  const main = document.querySelector('main') || document.body;\n  const els = main.querySelectorAll('h1, h2, p, .pitch');\n  const texts = [];\n  for (const el of Array.from(els).slice(0, 10)) {\n    const t = el.innerText.trim();\n    if (t) texts.push(el.tagName + ': ' + t);\n  }\n  return texts.join('\\n');\n});\nconsole.log(content);\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run3 run /tmp/rustlang2.js","description":"Get main description from rust-lang.org"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1174,"cache_read_input_tokens":15944,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1174},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"ff0911ab-1b55-49c1-87dc-25461a1fae4c"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01RPqvnKkaNrQ1kLBzEeFAu8","type":"tool_result","content":"H1: Rust\nH2: A language empowering everyone\nto build reliable and efficient software.\nP: Version 1.94.1\nH2: Why Rust?\nP: Rust is blazingly fast and memory-efficient: with no runtime or garbage collector, it can power performance-critical services, run on embedded devices, and easily integrate with other languages.\nP: Rust’s rich type system and ownership model guarantee memory-safety and thread-safety — enabling you to eliminate many classes of bugs at compile-time.\nP: Rust has great documentation, a friendly compiler with useful error messages, and top-notch tooling — an integrated package manager and build tool, smart multi-editor support with auto-completion and type inspections, an auto-formatter, and more.\nH2: Build it in Rust\nP: In 2018, the Rust community decided to improve the programming experience for a few distinct domains (see the 2018 roadmap). For these, you can find many high-quality crates and some awesome guides on how to get started.\nP: Whip up a CLI tool quickly with Rust’s robust ecosystem. Rust helps you maintain your app with confidence and distribute it with ease.","is_error":false}]},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"dd2232bb-52fe-4575-a120-098b3b2402b6","timestamp":"2026-04-03T09:36:40.506Z","tool_use_result":{"stdout":"H1: Rust\nH2: A language empowering everyone\nto build reliable and efficient software.\nP: Version 1.94.1\nH2: Why Rust?\nP: Rust is blazingly fast and memory-efficient: with no runtime or garbage collector, it can power performance-critical services, run on embedded devices, and easily integrate with other languages.\nP: Rust’s rich type system and ownership model guarantee memory-safety and thread-safety — enabling you to eliminate many classes of bugs at compile-time.\nP: Rust has great documentation, a friendly compiler with useful error messages, and top-notch tooling — an integrated package manager and build tool, smart multi-editor support with auto-completion and type inspections, an auto-formatter, and more.\nH2: Build it in Rust\nP: In 2018, the Rust community decided to improve the programming experience for a few distinct domains (see the 2018 roadmap). For these, you can find many high-quality crates and some awesome guides on how to get started.\nP: Whip up a CLI tool quickly with Rust’s robust ecosystem. Rust helps you maintain your app with confidence and distribute it with ease.","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_015ge1rsqfq5phsgKpqdeXXv","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"The Wikipedia result shows the first paragraph but not the designer specifically. Let me check the infobox more carefully for \"Designed by\". The infobox showed \"Developer: The Rust Team\" but not \"Designed by\". Let me look more carefully.","signature":" "}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1094,"cache_read_input_tokens":17118,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1094},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"f9ea64a0-14ef-4372-915e-84c83588b569"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_015ge1rsqfq5phsgKpqdeXXv","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_0119tS4PwBrrxLNrSc5TBf5G","name":"Bash","input":{"command":"cat << 'EOF' > /tmp/wiki_rust3.js\nconst page = await browser.newPage();\nawait page.goto('https://en.wikipedia.org/wiki/Rust_(programming_language)');\nawait page.waitForSelector('#firstHeading');\nconst content = await page.evaluate(() => {\n  const rows = document.querySelectorAll('.infobox tr');\n  const result = [];\n  for (const row of rows) {\n    const th = row.querySelector('th');\n    const td = row.querySelector('td');\n    if (th && td) {\n      result.push(th.innerText.trim() + ': ' + td.innerText.trim());\n    }\n  }\n  return result.join('\\n');\n});\nconsole.log(content);\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run3 run /tmp/wiki_rust3.js","description":"Get all infobox rows from Wikipedia Rust page"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1094,"cache_read_input_tokens":17118,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1094},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"c8fa8496-32eb-465d-a5d5-2d8ffe144fcc"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_0119tS4PwBrrxLNrSc5TBf5G","type":"tool_result","content":"Paradigms: Concurrentfunctionalgenericimperativestructured\nDeveloper: The Rust Team\nFirst appeared: January 19, 2012; 14 years ago\nStable release: 1.94.1[1]  / March 26, 2026; 7 days ago\nTyping discipline: Affineinferrednominalstaticstrong\nImplementation language: OCaml (2006–2011)\nRust (2012–present)\nPlatform: Cross-platform[note 1]\nOS: Cross-platform[note 2]\nLicense: MIT, Apache 2.0[note 3]\nFilename extensions: .rs, .rlib\nWebsite: rust-lang.org\nFormation: February 8, 2021; 5 years ago\nFounders: Amazon Web Services\nGoogle\nHuawei\nMicrosoft\nMozilla Foundation\nType: Nonprofit organization\nLocation: United States\nChairperson: Shane Miller\nExecutive Director: Rebecca Rumbul\nWebsite: foundation.rust-lang.org","is_error":false}]},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"a2e43d23-4ae9-42e1-9370-d0d97c59afe5","timestamp":"2026-04-03T09:36:45.793Z","tool_use_result":{"stdout":"Paradigms: Concurrentfunctionalgenericimperativestructured\nDeveloper: The Rust Team\nFirst appeared: January 19, 2012; 14 years ago\nStable release: 1.94.1[1]  / March 26, 2026; 7 days ago\nTyping discipline: Affineinferrednominalstaticstrong\nImplementation language: OCaml (2006–2011)\nRust (2012–present)\nPlatform: Cross-platform[note 1]\nOS: Cross-platform[note 2]\nLicense: MIT, Apache 2.0[note 3]\nFilename extensions: .rs, .rlib\nWebsite: rust-lang.org\nFormation: February 8, 2021; 5 years ago\nFounders: Amazon Web Services\nGoogle\nHuawei\nMicrosoft\nMozilla Foundation\nType: Nonprofit organization\nLocation: United States\nChairperson: Shane Miller\nExecutive Director: Rebecca Rumbul\nWebsite: foundation.rust-lang.org","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01TsonWebRZN5ZkG4zE7L7SU","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"The infobox doesn't have a \"Designed by\" field specifically - it has \"Developer: The Rust Team\". But I know from the Wikipedia article that Rust was originally designed by Graydon Hoare at Mozilla Research. Let me look for this in the article text.","signature":" "}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":623,"cache_read_input_tokens":18212,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":623},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"e294449c-12bb-454d-8f4c-534e6b50d784"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01TsonWebRZN5ZkG4zE7L7SU","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01DAp7D3D2abAQovqm8frFZo","name":"Bash","input":{"command":"cat << 'EOF' > /tmp/wiki_rust4.js\nconst page = await browser.newPage();\nawait page.goto('https://en.wikipedia.org/wiki/Rust_(programming_language)');\nawait page.waitForSelector('#firstHeading');\nconst content = await page.evaluate(() => {\n  // Get first few paragraphs\n  const paras = document.querySelectorAll('#mw-content-text .mw-parser-output > p:not(.mw-empty-elt)');\n  return Array.from(paras).slice(0, 3).map(p => p.innerText).join('\\n\\n');\n});\nconsole.log(content);\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run3 run /tmp/wiki_rust4.js","description":"Get first paragraphs from Wikipedia Rust article"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":623,"cache_read_input_tokens":18212,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":623},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"52d8b16d-fba6-4d8c-8faf-a186a70f75ca"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01DAp7D3D2abAQovqm8frFZo","type":"tool_result","content":"Rust is a general-purpose programming language. It is noted for its emphasis on performance, type safety, concurrency, and memory safety.\n\nRust supports multiple programming paradigms. It was influenced by ideas from functional programming, including immutability, higher-order functions, algebraic data types, and pattern matching. It also supports object-oriented programming via structs, enums, traits, and methods. Rust is noted for enforcing memory safety (i.e., that all references point to valid memory) without a conventional garbage collector; instead, memory safety errors and data races are prevented by the \"borrow checker\", which tracks the object lifetime of references at compile time.\n\nSoftware developer Graydon Hoare created Rust in 2006 while working at Mozilla, which officially sponsored the project in 2009. The first stable release, Rust 1.0, was published in May 2015. Following a layoff of Mozilla employees in August 2020, four other companies joined Mozilla in sponsoring Rust through the creation of the Rust Foundation in February 2021.","is_error":false}]},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"0fefa28a-d3e0-4fc3-88dd-14f67cc9f227","timestamp":"2026-04-03T09:36:53.150Z","tool_use_result":{"stdout":"Rust is a general-purpose programming language. It is noted for its emphasis on performance, type safety, concurrency, and memory safety.\n\nRust supports multiple programming paradigms. It was influenced by ideas from functional programming, including immutability, higher-order functions, algebraic data types, and pattern matching. It also supports object-oriented programming via structs, enums, traits, and methods. Rust is noted for enforcing memory safety (i.e., that all references point to valid memory) without a conventional garbage collector; instead, memory safety errors and data races are prevented by the \"borrow checker\", which tracks the object lifetime of references at compile time.\n\nSoftware developer Graydon Hoare created Rust in 2006 while working at Mozilla, which officially sponsored the project in 2009. The first stable release, Rust 1.0, was published in May 2015. Following a layoff of Mozilla employees in August 2020, four other companies joined Mozilla in sponsoring Rust through the creation of the Rust Foundation in February 2021.","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01G52wSxEGkPCnWEWMrZQZZ2","type":"message","role":"assistant","content":[{"type":"text","text":"Here are the findings from all three sites:\n\n---\n\n**1. Wikipedia — Designer**\nRust was created by **Graydon Hoare** in 2006 while working at Mozilla, which officially sponsored the project in 2009. It is currently maintained by **The Rust Team** (under the Rust Foundation).\n\n**2. GitHub (rust-lang/rust) — Star Count**\n**112k stars**\n\n**3. rust-lang.org — Tagline / Main Description**\n> **\"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":597,"cache_read_input_tokens":18835,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":597},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","uuid":"4c8a934d-481c-4540-b268-01f5fdb7ce40"}
{"type":"result","subtype":"success","is_error":false,"duration_ms":37898,"duration_api_ms":36965,"num_turns":8,"result":"Here are the findings from all three sites:\n\n---\n\n**1. Wikipedia — Designer**\nRust was created by **Graydon Hoare** in 2006 while working at Mozilla, which officially sponsored the project in 2009. It is currently maintained by **The Rust Team** (under the Rust Foundation).\n\n**2. GitHub (rust-lang/rust) — Star Count**\n**112k stars**\n\n**3. rust-lang.org — Tagline / Main Description**\n> **\"A language empowering everyone to build reliable and efficient software.\"**","stop_reason":"end_turn","session_id":"ac1cbe05-39c2-432d-b577-361bc7a64d91","total_cost_usd":0.10003035,"usage":{"input_tokens":6,"cache_creation_input_tokens":10829,"cache_read_input_tokens":78712,"output_tokens":2386,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":10829,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"},"modelUsage":{"claude-sonnet-4-6":{"inputTokens":6,"outputTokens":2386,"cacheReadInputTokens":78712,"cacheCreationInputTokens":10829,"webSearchRequests":0,"costUSD":0.10003035,"contextWindow":200000,"maxOutputTokens":32000}},"permission_denials":[],"fast_mode_state":"off","uuid":"314e0c07-2c6d-4589-b76c-71d3ddbb8364"}
