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link \"Code\" [ref=e27]\n            - StaticText \"Code\"\n        - listitem [level=1]\n          - link \"Issues 5k+\" [ref=e28]\n            - StaticText \"Issues\"\n            - StaticText \"5k+\"\n        - listitem [level=1]\n          - link \"Pull requests 1.1k\" [ref=e29]\n            - StaticText \"Pull requests\"\n            - StaticText \"1.1k\"\n        - listitem [level=1]\n          - link \"Actions\" [ref=e30]\n            - StaticText \"Actions\"\n        - listitem [level=1]\n          - link \"Projects\" [ref=e31]\n            - StaticText \"Projects\"\n        - listitem [level=1]\n          - link \"Security and quality 6\" [ref=e32]\n            - StaticText \"Security and quality\"\n            - StaticText \"6\"\n        - listitem [level=1]\n          - link \"Insights\" [ref=e33]\n            - StaticText \"Insights\"\n  - generic [ref=e13] focusable [tabindex]\n    - sectionheader\n      - heading \"rust-lang/rust\" [level=1, ref=e85]\n    - button \"main branch\" [expanded=false, ref=e43]\n      - generic\n        - StaticText \"main\"\n    - link \"10 Branches\" [ref=e34]\n      - strong\n        - StaticText \"10 \"\n      - StaticText \"Branches\"\n    - link \"156 Tags\" [ref=e35]\n      - strong\n        - StaticText \"156 \"\n      - StaticText \"Tags\"\n    - generic [ref=e36] clickable [onclick]\n      - combobox \"Go to file\" [expanded=false, ref=e44]\n    - button \"Code\" [expanded=false, ref=e37]\n      - StaticText \"Code\"\n    - heading \"Folders and files\" [level=2, ref=e38]\n    - table \"Folders and files\"\n      - rowgroup\n        - row\n          - columnheader \"Name\" [ref=e199]\n          - columnheader \"Last commit message\" [ref=e200]","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Woh6MUAPvReVRuTMycVjLM","type":"tool_result","content":"\u001b[32m✓\u001b[0m \u001b[1mRust Programming Language\u001b[0m\n  \u001b[2mhttps://rust-lang.org/\u001b[0m\n- navigation\n  - link \"Rust Logo\" [ref=e7]\n    - image \"Rust Logo\"\n  - list\n    - listitem [level=1]\n      - link \"Install\" [ref=e25]\n    - listitem [level=1]\n      - link \"Learn\" [ref=e26]\n    - listitem [level=1]\n      - link \"Playground\" [ref=e27]\n    - listitem [level=1]\n      - link \"Tools\" [ref=e28]\n    - listitem [level=1]\n      - link \"Governance\" [ref=e29]\n    - listitem [level=1]\n      - link \"Community\" [ref=e30]\n    - listitem [level=1]\n      - link \"Blog\" [ref=e31]\n  - generic\n    - LabelText\n      - StaticText \"Language\"\n    - combobox \"Language\" [expanded=false, ref=e8]: English (en-US)\n      - MenuListPopup\n        - option \"English (en-US)\" [selected, ref=e56]\n        - option \"Español (es)\" [ref=e57]\n        - option \"Français (fr)\" [ref=e58]\n        - option \"Italiano (it)\" [ref=e59]\n        - option \"日本語 (ja)\" [ref=e60]\n        - option \"Português (pt-BR)\" [ref=e61]\n        - option \"Русский (ru)\" [ref=e62]\n        - option \"Türkçe (tr)\" [ref=e63]\n        - option \"简体中文 (zh-CN)\" [ref=e64]\n        - option \"正體中文 (zh-TW)\" [ref=e65]\n- main\n  - sectionheader\n    - heading \"Rust\" [level=1, ref=e9]\n    - heading \"A language empowering everyone to build reliable and efficient software.\" [level=2, ref=e10]\n      - StaticText \"A language empowering everyone\"\n      - LineBreak \"\\n\"\n      - StaticText \"to build reliable and efficient software.\"\n    - link \"GET STARTED\" [ref=e11]\n    - paragraph\n      - link \"Version 1.94.1\" [ref=e32]\n  - sectionheader\n    - heading \"Why Rust?\" [level=2, ref=e33]\n  - generic\n    - heading \"Performance\" [level=3, ref=e34]\n    - paragraph\n      - StaticText \"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.\"\n  - generic\n    - heading \"Reliability\" [level=3, ref=e35]\n    - paragraph\n      - StaticText \"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.\"\n  - generic\n    - heading \"Productivity\" [level=3, ref=e36]\n    - paragraph\n      - StaticText \"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.\"\n  - sectionheader\n    - heading \"Build it in Rust\" [level=2, ref=e37]\n  - paragraph\n    - StaticText \"In 2018, the Rust community decided to improve the programming experience for a few distinct domains (see \"\n    - link \"the 2018 roadmap\" [ref=e38]\n    - StaticText \"). For these, you can find many high-quality crates and some awesome guides on how to get started.\"\n  - image \"terminal\"\n  - heading \"Command Line\" [level=3, ref=e12]\n  - paragraph\n    - StaticText \"Whip up a CLI tool quickly with Rust’s robust ecosystem. Rust helps you maintain your app with confidence and distribute it with ease.\"\n  - link \"BUILDING TOOLS\" [ref=e13]\n  - image \"gear with puzzle piece elements\"\n  - heading \"WebAssembly\" [level=3, ref=e14]\n  - paragraph\n    - StaticText \"Use Rust to supercharge your JavaScript, one module at a time. Publish to npm, bundle with webpack, and you’re off to the races.\"\n  - link \"WRITING WEB APPS\" [ref=e15]\n  - image \"a cloud with nodes\"\n  - heading \"Networking\" [level=3, ref=e16]\n  - paragraph\n    - StaticText \"Predictable performance. Tiny resource footprint. Rock-solid reliability. Rust is great for network services.\"\n  - link \"WORKING ON SERVERS\" [ref=e17]\n  - image \"an embedded device chip\"\n  - heading \"Embedded\" [level=3, ref=e18]","is_error":false}]},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"81159da9-6217-4a8a-9932-8ee9220c9b6f","timestamp":"2026-04-03T07:08:58.163Z","tool_use_result":{"stdout":"\u001b[32m✓\u001b[0m \u001b[1mRust Programming Language\u001b[0m\n  \u001b[2mhttps://rust-lang.org/\u001b[0m\n- navigation\n  - link \"Rust Logo\" [ref=e7]\n    - image \"Rust Logo\"\n  - list\n    - listitem [level=1]\n      - link \"Install\" [ref=e25]\n    - listitem [level=1]\n      - link \"Learn\" [ref=e26]\n    - listitem [level=1]\n      - link \"Playground\" [ref=e27]\n    - listitem [level=1]\n      - link \"Tools\" [ref=e28]\n    - listitem [level=1]\n      - link \"Governance\" [ref=e29]\n    - listitem [level=1]\n      - link \"Community\" [ref=e30]\n    - listitem [level=1]\n      - link \"Blog\" [ref=e31]\n  - generic\n    - LabelText\n      - StaticText \"Language\"\n    - combobox \"Language\" [expanded=false, ref=e8]: English (en-US)\n      - MenuListPopup\n        - option \"English (en-US)\" [selected, ref=e56]\n        - option \"Español (es)\" [ref=e57]\n        - option \"Français (fr)\" [ref=e58]\n        - option \"Italiano (it)\" [ref=e59]\n        - option \"日本語 (ja)\" [ref=e60]\n        - option \"Português (pt-BR)\" [ref=e61]\n        - option \"Русский (ru)\" [ref=e62]\n        - option \"Türkçe (tr)\" [ref=e63]\n        - option \"简体中文 (zh-CN)\" [ref=e64]\n        - option \"正體中文 (zh-TW)\" [ref=e65]\n- main\n  - sectionheader\n    - heading \"Rust\" [level=1, ref=e9]\n    - heading \"A language empowering everyone to build reliable and efficient software.\" [level=2, ref=e10]\n      - StaticText \"A language empowering everyone\"\n      - LineBreak \"\\n\"\n      - StaticText \"to build reliable and efficient software.\"\n    - link \"GET STARTED\" [ref=e11]\n    - paragraph\n      - link \"Version 1.94.1\" [ref=e32]\n  - sectionheader\n    - heading \"Why Rust?\" [level=2, ref=e33]\n  - generic\n    - heading \"Performance\" [level=3, ref=e34]\n    - paragraph\n      - StaticText \"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.\"\n  - generic\n    - heading \"Reliability\" [level=3, ref=e35]\n    - paragraph\n      - StaticText \"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.\"\n  - generic\n    - heading \"Productivity\" [level=3, ref=e36]\n    - paragraph\n      - StaticText \"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.\"\n  - sectionheader\n    - heading \"Build it in Rust\" [level=2, ref=e37]\n  - paragraph\n    - StaticText \"In 2018, the Rust community decided to improve the programming experience for a few distinct domains (see \"\n    - link \"the 2018 roadmap\" [ref=e38]\n    - StaticText \"). For these, you can find many high-quality crates and some awesome guides on how to get started.\"\n  - image \"terminal\"\n  - heading \"Command Line\" [level=3, ref=e12]\n  - paragraph\n    - StaticText \"Whip up a CLI tool quickly with Rust’s robust ecosystem. Rust helps you maintain your app with confidence and distribute it with ease.\"\n  - link \"BUILDING TOOLS\" [ref=e13]\n  - image \"gear with puzzle piece elements\"\n  - heading \"WebAssembly\" [level=3, ref=e14]\n  - paragraph\n    - StaticText \"Use Rust to supercharge your JavaScript, one module at a time. Publish to npm, bundle with webpack, and you’re off to the races.\"\n  - link \"WRITING WEB APPS\" [ref=e15]\n  - image \"a cloud with nodes\"\n  - heading \"Networking\" [level=3, ref=e16]\n  - paragraph\n    - StaticText \"Predictable performance. Tiny resource footprint. Rock-solid reliability. Rust is great for network services.\"\n  - link \"WORKING ON SERVERS\" [ref=e17]\n  - image \"an embedded device chip\"\n  - heading \"Embedded\" [level=3, ref=e18]","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01KEhyCWmjd895G98ieW8Jdm","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"I have the information from GitHub and rust-lang.org. Now I need to get the designer information from Wikipedia. Let me search the Wikipedia snapshot for that info - I need to look at the infobox area. Let me get more of the Wikipedia snapshot.","signature":" "}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":3901,"cache_read_input_tokens":16567,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":3901},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"b427abb5-6e1e-4147-8b9d-e81c45e5a42c"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01KEhyCWmjd895G98ieW8Jdm","type":"message","role":"assistant","content":[{"type":"text","text":"I got the GitHub star count (112k) and rust-lang.org tagline. Now let me get the designer info from Wikipedia's infobox."}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":3901,"cache_read_input_tokens":16567,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":3901},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"efebe270-8d27-4b5b-953f-6cbf89826599"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01KEhyCWmjd895G98ieW8Jdm","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01M4eDN4G9Eg2XMeEvbRkEtm","name":"Bash","input":{"command":"agent-browser open \"https://en.wikipedia.org/wiki/Rust_(programming_language)\" && agent-browser get text \"table.infobox\" 2>&1 | head -60","description":"Get Wikipedia infobox text for Rust designer info"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":3901,"cache_read_input_tokens":16567,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":3901},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"b9f7539f-273c-4a4c-acaa-44a1a1a86b35"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01M4eDN4G9Eg2XMeEvbRkEtm","type":"tool_result","content":"\u001b[32m✓\u001b[0m \u001b[1mRust (programming language) - Wikipedia\u001b[0m\n  \u001b[2mhttps://en.wikipedia.org/wiki/Rust_(programming_language)\u001b[0m\nRust\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":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"e71634d4-8085-444f-af69-c1cfd3d70091","timestamp":"2026-04-03T07:09:03.297Z","tool_use_result":{"stdout":"\u001b[32m✓\u001b[0m \u001b[1mRust (programming language) - Wikipedia\u001b[0m\n  \u001b[2mhttps://en.wikipedia.org/wiki/Rust_(programming_language)\u001b[0m\nRust\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_01XMS2o8ucJB8TQVU3JNpqTP","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"Hmm, the infobox shows \"Developer: The Rust Team\" but not the original designer. Let me look for the \"designed by\" field. Let me search specifically for \"designed by\" or \"Graydon\" in the Wikipedia page.","signature":" "}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":565,"cache_read_input_tokens":20468,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":565},"output_tokens":34,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"314c4d6c-ecc7-4924-a9ef-deed59deca62"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01XMS2o8ucJB8TQVU3JNpqTP","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_015HppsMk6vm9SpswuNahkAH","name":"Bash","input":{"command":"agent-browser eval \"document.querySelector('table.infobox').innerText\" 2>&1 | head -80","description":"Get full infobox text from Wikipedia"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":565,"cache_read_input_tokens":20468,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":565},"output_tokens":34,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"4b8f413a-f0a6-446c-a2cc-e1fc98564500"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_015HppsMk6vm9SpswuNahkAH","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":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"9bdd7d1f-1ed1-4f01-914c-79a48605a8fe","timestamp":"2026-04-03T07:09:06.223Z","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_01PC2C9YPbk2DW1NqcyhsEey","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"The infobox doesn't have a \"designed by\" field, just \"Developer: The Rust Team\". Let me search in the article text for the designer's name (Graydon Hoare).","signature":"EtkCClsIDBgCKkBMLIJlWSYb/k8JUC/qNI+8ZbGVEY7YHcr6jena9gG3iyhZU1rtKmYM5qri9xDE50X9onWjDWEaf3P/OJRkYvuEMhFjbGF1ZGUtc29ubmV0LTQtNjgAEgyVHnzb4ylOJ89ExOwaDPZbUNG7gehwNQ1syiIwcTVkJM6aUjo5l6HTKDx/xBpAe7GG502pKimrKhEQJjw3L9t4MklpDKrf+z2h0ErTKqsBA6ufsc3qujqrirwjKVDuf7p1lp2CKERNBWbyKFYAnoWAW4eXR/1nhum7Osvz43Ev8soNkTPgmwkpwUv1X0C5L3vxkM0mTrIkd+uIwAt2xwHW+uqQgrOPc5+zCsYwG0nnzbjtogHSQBq2iiAfbdsunE/wFgAZ46swYr3ixB4sHKEBw1P415TUfVIY6TPsoGyR9GuBJaEheyr6CgUzjJYx6sj1hUXDN03EWPxsGAE="}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":506,"cache_read_input_tokens":21033,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":506},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"50ff6772-ad4d-465d-b382-dd24d00e52e4"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01PC2C9YPbk2DW1NqcyhsEey","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_017nNvcUTT7JhM9w7WiMnCDp","name":"Bash","input":{"command":"agent-browser eval \"document.querySelector('#mw-content-text').innerText.substring(0, 2000)\" 2>&1","description":"Get Wikipedia article intro text"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":506,"cache_read_input_tokens":21033,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":506},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"3f4b0461-4009-4196-808c-47f75ec986e7"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_017nNvcUTT7JhM9w7WiMnCDp","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]\\n\\nRust 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.\\n\\nRust has been adopted by many software projects, especially web services and system software. It has been studied academically and has a growing community of developers.\\n\\nHistory[edit]\\n2006–2009: Early years[edit]\\nMozilla Foundation headquarters, 650 Castro Street in \"","is_error":false}]},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"2f0f15e0-c5b4-4bea-a159-131088806ebe","timestamp":"2026-04-03T07:09:12.687Z","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]\\n\\nRust 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.\\n\\nRust has been adopted by many software projects, especially web services and system software. It has been studied academically and has a growing community of developers.\\n\\nHistory[edit]\\n2006–2009: Early years[edit]\\nMozilla Foundation headquarters, 650 Castro Street in \"","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01GuNVz2amvtn11EzUheEYYz","type":"message","role":"assistant","content":[{"type":"text","text":"I have all the information needed. Here's the research summary:\n\n---\n\n**Rust Programming Language — Research Report**\n\n**1. Wikipedia — Designer**\nRust was created by **Graydon Hoare**, a software developer who started the project in 2006 while working at Mozilla. Mozilla officially sponsored the project in 2009. Today the language is maintained by **The Rust Team** / the Rust Foundation.\n\n**2. GitHub (rust-lang/rust) — Star Count**\nThe repository currently has **112k stars** (with 14.7k forks).\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":802,"cache_read_input_tokens":21539,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":802},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"223347ca-97f9-4cac-9fe3-3f74985a9013","uuid":"4ebe8132-ae6c-4c99-b2ca-6e0b01bc90d5"}
{"type":"result","subtype":"success","is_error":false,"duration_ms":28113,"duration_api_ms":24975,"num_turns":8,"result":"I have all the information needed. Here's the research summary:\n\n---\n\n**Rust Programming Language — Research Report**\n\n**1. Wikipedia — Designer**\nRust was created by **Graydon Hoare**, a software developer who started the project in 2006 while working at Mozilla. Mozilla officially sponsored the project in 2009. Today the language is maintained by **The Rust Team** / the Rust Foundation.\n\n**2. GitHub (rust-lang/rust) — Star Count**\nThe repository currently has **112k stars** (with 14.7k forks).\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":"223347ca-97f9-4cac-9fe3-3f74985a9013","total_cost_usd":0.0999834,"usage":{"input_tokens":7,"cache_creation_input_tokens":13738,"cache_read_input_tokens":104083,"output_tokens":1148,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":13738,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"},"modelUsage":{"claude-sonnet-4-6":{"inputTokens":7,"outputTokens":1148,"cacheReadInputTokens":104083,"cacheCreationInputTokens":13738,"webSearchRequests":0,"costUSD":0.0999834,"contextWindow":200000,"maxOutputTokens":32000}},"permission_denials":[],"fast_mode_state":"off","uuid":"39fe8c96-da66-4089-823e-67548feacb26"}
