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{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01TdJmanerrAB4aMSMJhRBbk","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"The user wants me to navigate to https://example.com and report the main heading. I'll use the chrome-devtools CLI tool.","signature":"ErYCClsIDBgCKkDCnkvDruxVN/Ul4LuJ2bULh1oiQkszJuTPNjUJ7fquB7V3eTQnGP4V8j5XqO6X4lS6GE5Zxivo2d/gPsbtcwN9MhFjbGF1ZGUtc29ubmV0LTQtNjgAEgy2ZppsKCwXH/jfzn4aDNZb4rdd5eTlm/oIKyIwigPgmbiXEKUdJCR+wHd1g1NeWbOn2Gugf0thDZQrMoOyH8ILhJBNw2tiulOfMH/dKogB0v9ubkWiCP1I6Lk34oAPrxJGiL4muBJmXvMO/m+Ogbfp02L9wXUaBnZCGwXiFYYqrlh9WtG3VXNLvuRdgobEM1jR5amUOthywGcYNxEMoHMdD7TGEdHNAGnocD7C3SEiBEpjxcgwvUgcgxIcwhzZXAaiIk5Y+305SiHPnp5W2hn5IKRJZ6hqxBgB"}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":7264,"cache_read_input_tokens":8603,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":7264},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"3909b2f1-e082-497d-b0eb-967d22a6982d","uuid":"586d20f7-88cf-4347-8b26-5623da6b5e3e"}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01TdJmanerrAB4aMSMJhRBbk","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01RH3JtZCpystrvkro3yHrgx","name":"Bash","input":{"command":"chrome-devtools navigate --url https://example.com && chrome-devtools evaluate --expression \"document.querySelector('h1').textContent\""},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":2,"cache_creation_input_tokens":7264,"cache_read_input_tokens":8603,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":7264},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"3909b2f1-e082-497d-b0eb-967d22a6982d","uuid":"4df9442c-6321-48d2-89e7-b48a085a30a0"}
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{"type":"user","message":{"role":"user","content":[{"type":"tool_result","content":"Exit code 1\nerror: unknown subcommand 'navigate'\n\nAvailable subcommands: click, close-page, drag, emulate, evaluate-script, fill, fill-form, get-console-message, get-network-request, handle-dialog, hover, lighthouse-audit, list-console-messages, list-network-requests, list-pages, navigate-page, new-page, performance-analyze-insight, performance-start-trace, performance-stop-trace, press-key, resize-page, select-page, take-memory-snapshot, take-screenshot, take-snapshot, type-text, upload-file, wait-for\nRun './chrome-devtools --help' for usage.","is_error":true,"tool_use_id":"toolu_01RH3JtZCpystrvkro3yHrgx"}]},"parent_tool_use_id":null,"session_id":"3909b2f1-e082-497d-b0eb-967d22a6982d","uuid":"7c758cb3-a1fa-4cd9-957e-5e131c5235c6","timestamp":"2026-04-03T08:54:09.240Z","tool_use_result":"Error: Exit code 1\nerror: unknown subcommand 'navigate'\n\nAvailable subcommands: click, close-page, drag, emulate, evaluate-script, fill, fill-form, get-console-message, get-network-request, handle-dialog, hover, lighthouse-audit, list-console-messages, list-network-requests, list-pages, navigate-page, new-page, performance-analyze-insight, performance-start-trace, performance-stop-trace, press-key, resize-page, select-page, take-memory-snapshot, take-screenshot, take-snapshot, type-text, upload-file, wait-for\nRun './chrome-devtools --help' for usage."}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_013zyjXBd6w9tZRenWWiaGpX","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_013wVGqZUz2rhTwSy1urAcRe","name":"Bash","input":{"command":"chrome-devtools navigate-page --url https://example.com && chrome-devtools evaluate-script --expression \"document.querySelector('h1').textContent\""},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":302,"cache_read_input_tokens":15867,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":302},"output_tokens":64,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"3909b2f1-e082-497d-b0eb-967d22a6982d","uuid":"cbb781ec-ab92-457f-8731-1b8af5b3255d"}
{"type":"user","message":{"role":"user","content":[{"type":"tool_result","content":"Exit code 1\nSuccessfully navigated to https://example.com.\n## Pages\n1: https://example.com/ [selected]\nerror: Unknown option: --expression\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_013wVGqZUz2rhTwSy1urAcRe"}]},"parent_tool_use_id":null,"session_id":"3909b2f1-e082-497d-b0eb-967d22a6982d","uuid":"3336cb05-c962-40b7-a52a-e74ede38c4fb","timestamp":"2026-04-03T08:54:12.504Z","tool_use_result":"Error: Exit code 1\nSuccessfully navigated to https://example.com.\n## Pages\n1: https://example.com/ [selected]\nerror: Unknown option: --expression\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_01SN7yege3YA34uQmgkRtBMm","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01AXENZjbdnfHiGnS2uYdmcy","name":"Bash","input":{"command":"chrome-devtools evaluate-script --function \"() => document.querySelector('h1').textContent\""},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":324,"cache_read_input_tokens":16169,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":324},"output_tokens":51,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"3909b2f1-e082-497d-b0eb-967d22a6982d","uuid":"8b8f84f5-6d86-4d6d-a2a1-6f00e85288a4"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01AXENZjbdnfHiGnS2uYdmcy","type":"tool_result","content":"Script ran on page and returned:\n```json\n\"Example Domain\"\n```","is_error":false}]},"parent_tool_use_id":null,"session_id":"3909b2f1-e082-497d-b0eb-967d22a6982d","uuid":"c74a306d-e3aa-4ac4-b90d-50aab3181467","timestamp":"2026-04-03T08:54:14.626Z","tool_use_result":{"stdout":"Script ran on page and returned:\n```json\n\"Example Domain\"\n```","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01AkibT8Y2z59N2C4RjFE5qL","type":"message","role":"assistant","content":[{"type":"text","text":"The main heading on https://example.com is **\"Example Domain\"**."}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":102,"cache_read_input_tokens":16493,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":102},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"3909b2f1-e082-497d-b0eb-967d22a6982d","uuid":"325d3f45-ce5e-49e1-8606-8a0b3d6536db"}
{"type":"result","subtype":"success","is_error":false,"duration_ms":11455,"duration_api_ms":8991,"num_turns":4,"result":"The main heading on https://example.com is **\"Example Domain\"**.","stop_reason":"end_turn","session_id":"3909b2f1-e082-497d-b0eb-967d22a6982d","total_cost_usd":0.051684600000000004,"usage":{"input_tokens":5,"cache_creation_input_tokens":7992,"cache_read_input_tokens":57132,"output_tokens":304,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":7992,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"},"modelUsage":{"claude-sonnet-4-6":{"inputTokens":5,"outputTokens":304,"cacheReadInputTokens":57132,"cacheCreationInputTokens":7992,"webSearchRequests":0,"costUSD":0.051684600000000004,"contextWindow":200000,"maxOutputTokens":32000}},"permission_denials":[],"fast_mode_state":"off","uuid":"0edbd087-13b4-4149-9701-f63279bed0e4"}
