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{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01HT55Z4Lo7gTPEHiMAn8JEZ","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"Let me research Rust across three sites using the dev-browser CLI.","signature":"Ev8BClsIDBgCKkC2G/T/uDy13UqSpmXOGfbRVza1Fq1f8T7Qb5e1ENVbRSfuveXmpkmNei3lpecMT3dlBZowtvWup4rQp85NEw81MhFjbGF1ZGUtc29ubmV0LTQtNjgAEgyRTozfT2L6KG8iXWoaDHE2MP3WiSn/e4sFeSIwaFtoWKKZGzDum0PUzQmDUczzvPC3phxuSms+r3BYhGXNETq1LT48p8frUP1M2Hf6KlIoPTa/fwZphuGSgnfcgcKIqVpnW8rSImHX/9gMu5CDs5VpKjrZCFlLzoEHV0G8GfxrUT8DjtpuMfCcDtKXqXg7K9ncKc3lwzakqjooAEE04L/IGAE="}],"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":"d35a7704-6402-4282-ba37-652786152fae","uuid":"04957860-8699-46d9-99af-80f2a168a56e"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01HT55Z4Lo7gTPEHiMAn8JEZ","type":"message","role":"assistant","content":[{"type":"text","text":"I'll research all three sites in parallel using the dev-browser."}],"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":"d35a7704-6402-4282-ba37-652786152fae","uuid":"805446b1-27cf-4cc1-873a-72c77ccf6cb9"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01HT55Z4Lo7gTPEHiMAn8JEZ","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01UGA78ZCJZg2X1Mgzk1C44v","name":"Bash","input":{"command":"cat > /tmp/wikipedia_rust.js << 'EOF'\nconst page = await browser.newPage();\nawait page.goto('https://en.wikipedia.org/wiki/Rust_(programming_language)');\nawait page.waitForSelector('body');\nconst text = await page.evaluate(() => {\n  // Look for designer info in the infobox\n  const infobox = document.querySelector('.infobox');\n  if (infobox) return infobox.innerText;\n  return document.body.innerText.slice(0, 3000);\n});\nconsole.log(text.slice(0, 3000));\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run2 run /tmp/wikipedia_rust.js","description":"Fetch Rust Wikipedia page 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":"d35a7704-6402-4282-ba37-652786152fae","uuid":"fa1a36df-a2ba-4fcc-843e-e534f8f1848d"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01UGA78ZCJZg2X1Mgzk1C44v","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":"d35a7704-6402-4282-ba37-652786152fae","uuid":"bb879962-d978-4255-9dea-ddced6662e15","timestamp":"2026-04-03T09:35:50.130Z","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_01HT55Z4Lo7gTPEHiMAn8JEZ","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_0152apW7oSQe38eQniq1VBKn","name":"Bash","input":{"command":"cat > /tmp/github_rust.js << 'EOF'\nconst page = await browser.newPage();\nawait page.goto('https://github.com/rust-lang/rust');\nawait page.waitForSelector('body');\nconst text = await page.evaluate(() => {\n  // Look for star count\n  const starEl = document.querySelector('#repo-stars-counter-star, [aria-label*=\"star\"], .starring-container');\n  if (starEl) return starEl.innerText || starEl.getAttribute('aria-label');\n  // Try to find star count in general\n  const allText = document.body.innerText;\n  return allText.slice(0, 5000);\n});\nconsole.log(text.slice(0, 3000));\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run2 run /tmp/github_rust.js","description":"Fetch GitHub rust-lang/rust star count"},"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":"d35a7704-6402-4282-ba37-652786152fae","uuid":"5da2a3a9-e708-4cc0-911b-fa2e28de327e"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_0152apW7oSQe38eQniq1VBKn","type":"tool_result","content":" Star 112k","is_error":false}]},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"6426c145-ed58-4d61-bd6b-2e2c1f0e4788","timestamp":"2026-04-03T09:35:51.861Z","tool_use_result":{"stdout":" Star 112k","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01HT55Z4Lo7gTPEHiMAn8JEZ","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01YZ8NDqG5bGCsqBavhtcPc2","name":"Bash","input":{"command":"cat > /tmp/rustlang_org.js << 'EOF'\nconst page = await browser.newPage();\nawait page.goto('https://www.rust-lang.org/');\nawait page.waitForSelector('body');\nconst text = await page.evaluate(() => {\n  // Look for tagline/hero text\n  const hero = document.querySelector('.hero-text, h1, .tagline, [class*=\"tagline\"], [class*=\"hero\"]');\n  if (hero) return hero.innerText;\n  return document.body.innerText.slice(0, 3000);\n});\nconsole.log(text.slice(0, 3000));\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run2 run /tmp/rustlang_org.js","description":"Fetch rust-lang.org tagline"},"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":"d35a7704-6402-4282-ba37-652786152fae","uuid":"736579ce-8c7b-4090-8452-808e92f93bb3"}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01YZ8NDqG5bGCsqBavhtcPc2","type":"tool_result","content":"Rust","is_error":false}]},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"94610f28-603d-4f53-9c7b-aedd5701b1ed","timestamp":"2026-04-03T09:35:53.798Z","tool_use_result":{"stdout":"Rust","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01QLERspVH3BQuEmQ77WH4B7","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"The Wikipedia result shows \"Developer: The Rust Team\" but I need to find who designed it. Let me look more carefully. The infobox doesn't show a \"Designed by\" field in what was returned. Let me search for that specifically.\n\nAlso the rust-lang.org result just returned \"Rust\" - I need to get the tagline. Let me get more content.","signature":" "}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1210,"cache_read_input_tokens":15944,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1210},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"257b5bf5-e04c-4b1c-97c1-87349d5fbdd3"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01QLERspVH3BQuEmQ77WH4B7","type":"message","role":"assistant","content":[{"type":"text","text":"Let me get more specific info from Wikipedia and rust-lang.org."}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1210,"cache_read_input_tokens":15944,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1210},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"b72b14e1-6e26-4f7e-88e8-4ac580611f8f"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01QLERspVH3BQuEmQ77WH4B7","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01SyNvfsaB8dSRPpi2myVujz","name":"Bash","input":{"command":"cat > /tmp/wikipedia_rust2.js << 'EOF'\nconst page = await browser.newPage();\nawait page.goto('https://en.wikipedia.org/wiki/Rust_(programming_language)');\nawait page.waitForSelector('.infobox');\nconst text = await page.evaluate(() => {\n  // Get all table rows in the infobox to find designed by\n  const rows = document.querySelectorAll('.infobox tr');\n  let result = [];\n  rows.forEach(row => {\n    result.push(row.innerText);\n  });\n  return result.join('\\n');\n});\nconsole.log(text);\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run2 run /tmp/wikipedia_rust2.js","description":"Get Wikipedia infobox rows for designer"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1210,"cache_read_input_tokens":15944,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1210},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"743449fa-57fd-4f4a-b3db-826cb829c02d"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01SyNvfsaB8dSRPpi2myVujz","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\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]\n\nFormation\tFebruary 8, 2021; 5 years ago\nFounders\t\nAmazon Web Services\nGoogle\nHuawei\nMicrosoft\nMozilla Foundation\nType\tNonprofit organization\nLocation\t\nUnited States\nChairperson\tShane Miller\nExecutive Director\tRebecca Rumbul\nWebsite\tfoundation.rust-lang.org","is_error":false}]},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"00ad504f-9dd7-4c09-a0a3-f43a4b59bf47","timestamp":"2026-04-03T09:36:00.487Z","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\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]\n\nFormation\tFebruary 8, 2021; 5 years ago\nFounders\t\nAmazon Web Services\nGoogle\nHuawei\nMicrosoft\nMozilla Foundation\nType\tNonprofit organization\nLocation\t\nUnited States\nChairperson\tShane Miller\nExecutive Director\tRebecca Rumbul\nWebsite\tfoundation.rust-lang.org","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01QLERspVH3BQuEmQ77WH4B7","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_017XBcsBgA6kSqE3tixLpySG","name":"Bash","input":{"command":"cat > /tmp/rustlang_org2.js << 'EOF'\nconst page = await browser.newPage();\nawait page.goto('https://www.rust-lang.org/');\nawait page.waitForSelector('body');\nconst text = await page.evaluate(() => {\n  // Get h1, h2, and intro paragraphs\n  const elements = document.querySelectorAll('h1, h2, p.pitch, .pitch, section p, .hero p');\n  let result = [];\n  elements.forEach(el => result.push(el.innerText));\n  if (result.length === 0) {\n    return document.body.innerText.slice(0, 2000);\n  }\n  return result.slice(0, 10).join('\\n---\\n');\n});\nconsole.log(text);\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run2 run /tmp/rustlang_org2.js","description":"Get rust-lang.org hero/tagline text"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1210,"cache_read_input_tokens":15944,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1210},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"c98fe378-e822-47d7-b7a5-d80d3a6f6456"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_017XBcsBgA6kSqE3tixLpySG","type":"tool_result","content":"Rust\n---\nA language empowering everyone\nto build reliable and efficient software.\n---\nWhy Rust?\n---\nRust 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.\n---\nRust’s rich type system and ownership model guarantee memory-safety and thread-safety — enabling you to eliminate many classes of bugs at compile-time.\n---\nRust 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.\n---\nBuild it in Rust\n---\nIn 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.\n---\nWhip up a CLI tool quickly with Rust’s robust ecosystem. Rust helps you maintain your app with confidence and distribute it with ease.\n---\nUse Rust to supercharge your JavaScript, one module at a time. Publish to npm, bundle with webpack, and you’re off to the races.","is_error":false}]},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"4b834e17-8715-40df-908a-fe2a34d03bbe","timestamp":"2026-04-03T09:36:03.031Z","tool_use_result":{"stdout":"Rust\n---\nA language empowering everyone\nto build reliable and efficient software.\n---\nWhy Rust?\n---\nRust 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.\n---\nRust’s rich type system and ownership model guarantee memory-safety and thread-safety — enabling you to eliminate many classes of bugs at compile-time.\n---\nRust 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.\n---\nBuild it in Rust\n---\nIn 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.\n---\nWhip up a CLI tool quickly with Rust’s robust ecosystem. Rust helps you maintain your app with confidence and distribute it with ease.\n---\nUse Rust to supercharge your JavaScript, one module at a time. Publish to npm, bundle with webpack, and you’re off to the races.","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01KFzszRAz7gGmA26qpGYJ7p","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"The Wikipedia infobox doesn't have a \"Designed by\" field - it shows \"Developer: The Rust Team\". Let me search for \"Graydon Hoare\" specifically, or look in the article body for the designer info.","signature":" "}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1382,"cache_read_input_tokens":17154,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1382},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"57124cb9-411b-405b-b223-ba6db5cb3f9c"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01KFzszRAz7gGmA26qpGYJ7p","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_018oXZ8ytBSDURMMuZUGVutA","name":"Bash","input":{"command":"cat > /tmp/wikipedia_rust3.js << 'EOF'\nconst page = await browser.newPage();\nawait page.goto('https://en.wikipedia.org/wiki/Rust_(programming_language)');\nawait page.waitForSelector('body');\nconst text = await page.evaluate(() => {\n  // Search for \"designed\" or \"Graydon\" in the article body\n  const body = document.body.innerText;\n  const idx = body.indexOf('Graydon');\n  if (idx !== -1) return body.slice(Math.max(0, idx - 100), idx + 300);\n  // Also try \"designed by\"\n  const idx2 = body.toLowerCase().indexOf('designed by');\n  if (idx2 !== -1) return body.slice(Math.max(0, idx2 - 50), idx2 + 200);\n  return body.slice(0, 2000);\n});\nconsole.log(text);\nEOF\ndev-browser --headless --browser axi-bench-dev-browser-multi_site_research-run2 run /tmp/wikipedia_rust3.js","description":"Search Wikipedia article body for Rust designer"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1382,"cache_read_input_tokens":17154,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1382},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"1ff27fce-edfe-4a5b-ae6e-6fc33f69fa19"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_018oXZ8ytBSDURMMuZUGVutA","type":"tool_result","content":"orrow 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 creat","is_error":false}]},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"936495a6-3339-4125-922c-f57eaa085e29","timestamp":"2026-04-03T09:36:09.161Z","tool_use_result":{"stdout":"orrow 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 creat","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01LPyh2a5o34xSBBKMWwT9R6","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**, a software developer who started the language in 2006 while working at Mozilla. Mozilla officially sponsored the project in 2009. The infobox lists the current developer as \"The Rust Team.\"\n\n**2. GitHub (rust-lang/rust) — Star Count**\nThe repository has **112k stars** (112,000+).\n\n**3. rust-lang.org — Tagline / Main Description**\nThe tagline is:\n> **\"A language empowering everyone to build reliable and efficient software.\"**\n\nThe site further describes Rust as: *\"blazingly fast and memory-efficient: with no runtime or garbage collector... Rust's rich type system and ownership model guarantee memory-safety and thread-safety.\"*"}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":517,"cache_read_input_tokens":18536,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":517},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"d35a7704-6402-4282-ba37-652786152fae","uuid":"d4f8abcb-0451-4eb2-a264-c26a144b71a9"}
{"type":"result","subtype":"success","is_error":false,"duration_ms":31625,"duration_api_ms":30765,"num_turns":7,"result":"Here are the findings from all three sites:\n\n---\n\n**1. Wikipedia — Designer**\nRust was created by **Graydon Hoare**, a software developer who started the language in 2006 while working at Mozilla. Mozilla officially sponsored the project in 2009. The infobox lists the current developer as \"The Rust Team.\"\n\n**2. GitHub (rust-lang/rust) — Star Count**\nThe repository has **112k stars** (112,000+).\n\n**3. rust-lang.org — Tagline / Main Description**\nThe tagline is:\n> **\"A language empowering everyone to build reliable and efficient software.\"**\n\nThe site further describes Rust as: *\"blazingly fast and memory-efficient: with no runtime or garbage collector... Rust's rich type system and ownership model guarantee memory-safety and thread-safety.\"*","stop_reason":"end_turn","session_id":"d35a7704-6402-4282-ba37-652786152fae","total_cost_usd":0.0891336,"usage":{"input_tokens":5,"cache_creation_input_tokens":10450,"cache_read_input_tokens":60237,"output_tokens":2124,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":10450,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"},"modelUsage":{"claude-sonnet-4-6":{"inputTokens":5,"outputTokens":2124,"cacheReadInputTokens":60237,"cacheCreationInputTokens":10450,"webSearchRequests":0,"costUSD":0.0891336,"contextWindow":200000,"maxOutputTokens":32000}},"permission_denials":[],"fast_mode_state":"off","uuid":"6ebb58ce-022f-4da3-92c0-430d45f0947f"}
