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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01VbUnZ5oKrF8ywNCD9SQ7qM","type":"tool_result","content":"chrome-devtools - the chrome-devtools toolset\n\nWhen relevant, outputs from this CLI will prefer using the TOON format for more efficient representation of data.\n\nUSAGE:\n  chrome-devtools <subcommand> [options]\n\nSUBCOMMANDS:\n  click                               Clicks on the provided element\n  close-page                          Closes the page by its index\n  drag                                Drag an element onto another element\n  emulate                             Emulates various features on the selected page\n  evaluate-script                     Evaluate a JavaScript function inside the currently selected page\n  fill                                Type text into a input, text area or select an option from a <select> element\n  fill-form                           Fill out multiple form elements at once\n  get-console-message                 Gets a console message by its ID\n  get-network-request                 Gets a network request by an optional reqid, if omitted returns the currently selected request in the DevTools Network panel\n  handle-dialog                       If a browser dialog was opened, use this command to handle it\n  hover                               Hover over the provided element\n  lighthouse-audit                    Get Lighthouse score and reports for accessibility, SEO and best practices\n  list-console-messages               List all console messages for the currently selected page since the last navigation\n  list-network-requests               List all requests for the currently selected page since the last navigation\n  list-pages                          Get a list of pages  open in the browser\n  navigate-page                       Go to a URL, or back, forward, or reload\n  new-page                            Open a new tab and load a URL\n  performance-analyze-insight         Provides more detailed information on a specific Performance Insight of an insight set that was highlighted in the results of a trace recording\n  performance-start-trace             Start a performance trace on the selected webpage\n  performance-stop-trace              Stop the active performance trace recording on the selected webpage\n  press-key                           Press a key or key combination\n  resize-page                         Resizes the selected page's window so that the page has specified dimension\n  select-page                         Select a page as a context for future tool calls\n  take-memory-snapshot                Capture a heap snapshot of the currently selected page\n  take-screenshot                     Take a screenshot of the page or element\n  take-snapshot                       Take a text snapshot of the currently selected page based on the a11y tree\n  type-text                           Type text using keyboard into a previously focused input\n  upload-file                         Upload a file through a provided element\n  wait-for                            Wait for the specified text to appear on the selected page\n\nRun 'chrome-devtools <subcommand> --help' for subcommand usage.","is_error":false}]},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"f9a5fc28-3fbb-4bcc-8029-55bed67f898d","timestamp":"2026-04-03T08:29:07.949Z","tool_use_result":{"stdout":"chrome-devtools - the chrome-devtools toolset\n\nWhen relevant, outputs from this CLI will prefer using the TOON format for more efficient representation of data.\n\nUSAGE:\n  chrome-devtools <subcommand> [options]\n\nSUBCOMMANDS:\n  click                               Clicks on the provided element\n  close-page                          Closes the page by its index\n  drag                                Drag an element onto another element\n  emulate                             Emulates various features on the selected page\n  evaluate-script                     Evaluate a JavaScript function inside the currently selected page\n  fill                                Type text into a input, text area or select an option from a <select> element\n  fill-form                           Fill out multiple form elements at once\n  get-console-message                 Gets a console message by its ID\n  get-network-request                 Gets a network request by an optional reqid, if omitted returns the currently selected request in the DevTools Network panel\n  handle-dialog                       If a browser dialog was opened, use this command to handle it\n  hover                               Hover over the provided element\n  lighthouse-audit                    Get Lighthouse score and reports for accessibility, SEO and best practices\n  list-console-messages               List all console messages for the currently selected page since the last navigation\n  list-network-requests               List all requests for the currently selected page since the last navigation\n  list-pages                          Get a list of pages  open in the browser\n  navigate-page                       Go to a URL, or back, forward, or reload\n  new-page                            Open a new tab and load a URL\n  performance-analyze-insight         Provides more detailed information on a specific Performance Insight of an insight set that was highlighted in the results of a trace recording\n  performance-start-trace             Start a performance trace on the selected webpage\n  performance-stop-trace              Stop the active performance trace recording on the selected webpage\n  press-key                           Press a key or key combination\n  resize-page                         Resizes the selected page's window so that the page has specified dimension\n  select-page                         Select a page as a context for future tool calls\n  take-memory-snapshot                Capture a heap snapshot of the currently selected page\n  take-screenshot                     Take a screenshot of the page or element\n  take-snapshot                       Take a text snapshot of the currently selected page based on the a11y tree\n  type-text                           Type text using keyboard into a previously focused input\n  upload-file                         Upload a file through a provided element\n  wait-for                            Wait for the specified text to appear on the selected page\n\nRun 'chrome-devtools <subcommand> --help' for subcommand usage.","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01HL66Fm87dKH6FGQSWTwjSG","type":"tool_result","content":"Successfully navigated to https://en.wikipedia.org/wiki/Python_(programming_language).\n## Pages\n1: https://en.wikipedia.org/wiki/Python_(programming_language) [selected]","is_error":false}]},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"37000bee-a6b8-4933-a46f-52908251381e","timestamp":"2026-04-03T08:29:10.980Z","tool_use_result":{"stdout":"Successfully navigated to https://en.wikipedia.org/wiki/Python_(programming_language).\n## Pages\n1: https://en.wikipedia.org/wiki/Python_(programming_language) [selected]","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01DDtxLy6dtyGCqrRiFjhvoV","type":"tool_result","content":"(Bash completed with no output)","is_error":false}]},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"98e08a1f-23ac-4544-81ca-4b55938d76ce","timestamp":"2026-04-03T08:29:13.470Z","tool_use_result":{"stdout":"","stderr":"","interrupted":false,"isImage":false,"returnCodeInterpretation":"No matches found","noOutputExpected":false}}
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{"type":"user","message":{"role":"user","content":[{"type":"tool_result","content":"Exit code 1\nerror: Unknown option: --script\n\nchrome-devtools evaluate-script - Evaluate a JavaScript function inside the currently selected page. Returns the response as JSON,\nso returned values have to be JSON-serializable.\n\nUSAGE:\n  chrome-devtools evaluate-script [options]\n\nOPTIONS:\n  --function STRING     (required) A JavaScript function declaration to be executed by the tool in the currently selected page.\nExample without arguments: `() => {\n  return document.title\n}` or `async () => {\n  return await fetch(\"example.com\")\n}`.\nExample with arguments: `(el) => {\n  return el.innerText;\n}`\n  --args [STRING]   (optional) An optional list of arguments to pass to the function.\n  --quiet                    (optional) Truncate large output to a short preview","is_error":true,"tool_use_id":"toolu_0133BpNakE7FzPUBS7EYuyyn"}]},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"c789a157-58db-4e7e-a7f0-ff7299087bc2","timestamp":"2026-04-03T08:29:15.925Z","tool_use_result":"Error: Exit code 1\nerror: Unknown option: --script\n\nchrome-devtools evaluate-script - Evaluate a JavaScript function inside the currently selected page. Returns the response as JSON,\nso returned values have to be JSON-serializable.\n\nUSAGE:\n  chrome-devtools evaluate-script [options]\n\nOPTIONS:\n  --function STRING     (required) A JavaScript function declaration to be executed by the tool in the currently selected page.\nExample without arguments: `() => {\n  return document.title\n}` or `async () => {\n  return await fetch(\"example.com\")\n}`.\nExample with arguments: `(el) => {\n  return el.innerText;\n}`\n  --args [STRING]   (optional) An optional list of arguments to pass to the function.\n  --quiet                    (optional) Truncate large output to a short preview"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01B4pMsMMj9kWfRAvmiR2NME","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01R6z3fGoa3WLHdUmZyR8nw8","name":"Bash","input":{"command":"chrome-devtools evaluate-script --function \"() => { const text = document.body.innerText; const match = text.match(/Designed by[^\\n]*/); return match ? match[0] : 'not found'; }\""},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":407,"cache_read_input_tokens":16722,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":407},"output_tokens":67,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"70fa5682-50f2-4086-a66a-59a76acb50e7"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01R6z3fGoa3WLHdUmZyR8nw8","type":"tool_result","content":"Script ran on page and returned:\n```json\n\"not found\"\n```","is_error":false}]},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"f3babe6f-e022-4064-a1a5-c31cfc5e6c73","timestamp":"2026-04-03T08:29:18.068Z","tool_use_result":{"stdout":"Script ran on page and returned:\n```json\n\"not found\"\n```","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Jjbmych7nmCbG51WZN1LAC","type":"tool_result","content":"Script ran on page and returned:\n```json\n\"not found\"\n```","is_error":false}]},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"d1ef1eff-a338-45c4-a138-2239d4454c15","timestamp":"2026-04-03T08:29:20.935Z","tool_use_result":{"stdout":"Script ran on page and returned:\n```json\n\"not found\"\n```","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_019pxUQEcuLjLzDVM2wEYFCg","type":"tool_result","content":"Script ran on page and returned:\n```json\n\"Python\\n\\nParadigm\\tMulti-paradigm: object-oriented,[1] procedural (imperative), functional, structured, reflective\\nDesigned by\\tGuido van Rossum\\nDeveloper\\tPython Software Foundation\\nFirst appeared\\t20 February 1991; 35 years ago[2]\\n\\nStable release\\t\\n3.14.3[3]  / 3 February 2026; 58 days ago\\n\\nTyping discipline\\tDuck, dynamic, strong;[4] optional type annotations[a]\\nMemory management\\tGarbage-collected\\nOS\\tCross-platform[b]\\nLicense\\tPython Software Foundation License\\nFilename extensions\\t.py,[11] .pyc,[12] .pyd,[13] .pyi,[14] .pyw,[15] .pyz[16]\\nWebsite\\tpython.org\\nMajor implementations\\nCPython, PyPy, MicroPython, CircuitPython, IronPython, Jython, Stackless Python\\nDialects\\nCython, RPython, Starlark[17]\\nInfluenced by\\nABC,[18] Ada,[19][failed verification] ALGOL 68,[20] APL,[21] C,[22] C++,[23] CLU,[24] Dylan,[25] Haskell,[26][21] Icon,[27] Lisp,[28] Modula-3,[20][23] Perl,[29] Standard ML[21]\\nInfluenced\\nApache Groovy, Boo, Cobra, CoffeeScript,[30] D, F#, GDScript, Go, JavaScript,[31][32] Julia,[33] \"\n```","is_error":false}]},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"ae606e31-cbe9-463d-a385-faed03ac7aa9","timestamp":"2026-04-03T08:29:23.361Z","tool_use_result":{"stdout":"Script ran on page and returned:\n```json\n\"Python\\n\\nParadigm\\tMulti-paradigm: object-oriented,[1] procedural (imperative), functional, structured, reflective\\nDesigned by\\tGuido van Rossum\\nDeveloper\\tPython Software Foundation\\nFirst appeared\\t20 February 1991; 35 years ago[2]\\n\\nStable release\\t\\n3.14.3[3]  / 3 February 2026; 58 days ago\\n\\nTyping discipline\\tDuck, dynamic, strong;[4] optional type annotations[a]\\nMemory management\\tGarbage-collected\\nOS\\tCross-platform[b]\\nLicense\\tPython Software Foundation License\\nFilename extensions\\t.py,[11] .pyc,[12] .pyd,[13] .pyi,[14] .pyw,[15] .pyz[16]\\nWebsite\\tpython.org\\nMajor implementations\\nCPython, PyPy, MicroPython, CircuitPython, IronPython, Jython, Stackless Python\\nDialects\\nCython, RPython, Starlark[17]\\nInfluenced by\\nABC,[18] Ada,[19][failed verification] ALGOL 68,[20] APL,[21] C,[22] C++,[23] CLU,[24] Dylan,[25] Haskell,[26][21] Icon,[27] Lisp,[28] Modula-3,[20][23] Perl,[29] Standard ML[21]\\nInfluenced\\nApache Groovy, Boo, Cobra, CoffeeScript,[30] D, F#, GDScript, Go, JavaScript,[31][32] Julia,[33] \"\n```","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01VYfKMvV8H4ZS9CQ1Ay7N8p","type":"message","role":"assistant","content":[{"type":"text","text":"Python is designed by **Guido van Rossum**. Now let me check JavaScript."}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":696,"cache_read_input_tokens":17263,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":696},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"355b83c1-c37b-43a7-9a01-00a8fa69d8cc"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01VYfKMvV8H4ZS9CQ1Ay7N8p","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01KG6SsR6JJAMy93uSwRczuX","name":"Bash","input":{"command":"chrome-devtools navigate-page --url \"https://en.wikipedia.org/wiki/JavaScript\""},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":696,"cache_read_input_tokens":17263,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":696},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"2449725a-7419-4194-bccb-aadd73cc05d8"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01KG6SsR6JJAMy93uSwRczuX","type":"tool_result","content":"Successfully navigated to https://en.wikipedia.org/wiki/JavaScript.\n## Pages\n1: https://en.wikipedia.org/wiki/JavaScript [selected]","is_error":false}]},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"683c587f-e585-4235-adb5-38596239acf9","timestamp":"2026-04-03T08:29:26.309Z","tool_use_result":{"stdout":"Successfully navigated to https://en.wikipedia.org/wiki/JavaScript.\n## Pages\n1: https://en.wikipedia.org/wiki/JavaScript [selected]","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_0171mbvCtCYwWTYHmsdnqgh5","type":"tool_result","content":"Script ran on page and returned:\n```json\n\"JavaScript\\n\\nScreenshot of JavaScript source code\\n\\nParadigms\\tMulti-paradigm: event-driven, functional, imperative, procedural, object-oriented\\nFamily\\tECMAScript\\nDesigned by\\tBrendan Eich of Netscape first; then others contributed to ECMAScript standard\\nFirst appeared\\t4 December 1995; 30 years ago[1]\\n\\nStable release\\t\\nECMAScript 2024[2]  / June 2024; 22 months ago\\n\\nPreview release\\t\\nECMAScript 2025[3]  / 27 March 2024; 2 years ago\\n\\nTyping discipline\\tDynamic, weak, duck\\nMemory management\\tGarbage collected\\nScope\\tlexical\\nFilename extensions\\t.js • .mjs • .cjs[4]\\nWebsite\\tecma-international.org/publications-and-standards/standards/ecma-262/\\nMajor implementations\\nV8, JavaScriptCore, SpiderMonkey;\\nChakra (deprecated)\\nInfluenced by\\nJava,[5][6] Scheme,[6] Self,[7] AWK,[8] HyperTalk[9]\\nInfluenced\\nActionScript, ArkTS, AssemblyScript, CoffeeScript, Dart, Haxe, JS++, Opa, TypeScript\\n\\n JavaScript at Wikibooks\"\n```","is_error":false}]},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"6eea086e-921a-4558-9e6a-34f3b8c2239a","timestamp":"2026-04-03T08:29:28.452Z","tool_use_result":{"stdout":"Script ran on page and returned:\n```json\n\"JavaScript\\n\\nScreenshot of JavaScript source code\\n\\nParadigms\\tMulti-paradigm: event-driven, functional, imperative, procedural, object-oriented\\nFamily\\tECMAScript\\nDesigned by\\tBrendan Eich of Netscape first; then others contributed to ECMAScript standard\\nFirst appeared\\t4 December 1995; 30 years ago[1]\\n\\nStable release\\t\\nECMAScript 2024[2]  / June 2024; 22 months ago\\n\\nPreview release\\t\\nECMAScript 2025[3]  / 27 March 2024; 2 years ago\\n\\nTyping discipline\\tDynamic, weak, duck\\nMemory management\\tGarbage collected\\nScope\\tlexical\\nFilename extensions\\t.js • .mjs • .cjs[4]\\nWebsite\\tecma-international.org/publications-and-standards/standards/ecma-262/\\nMajor implementations\\nV8, JavaScriptCore, SpiderMonkey;\\nChakra (deprecated)\\nInfluenced by\\nJava,[5][6] Scheme,[6] Self,[7] AWK,[8] HyperTalk[9]\\nInfluenced\\nActionScript, ArkTS, AssemblyScript, CoffeeScript, Dart, Haxe, JS++, Opa, TypeScript\\n\\n JavaScript at Wikibooks\"\n```","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01CBbF4jekRhASbUSz8QuhLx","type":"message","role":"assistant","content":[{"type":"text","text":"Here are the designers from both Wikipedia articles:\n\n- **Python**: Designed by **Guido van Rossum**\n- **JavaScript**: Designed by **Brendan Eich** (of Netscape; others later contributed to the ECMAScript standard)"}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":590,"cache_read_input_tokens":18101,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":590},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"9a634978-403b-4c6d-81a7-a552a1f7fc56","uuid":"5319b0d2-2ecb-4b9d-bbe4-9dffb7554d69"}
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