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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01LR7oCLS5YgZzu9yUvbvXJe","type":"tool_result","content":"Dev Browser is a CLI for controlling local or external browsers with JavaScript scripts.\nScripts run in a sandboxed QuickJS runtime (not Node.js). Top-level `await` is\navailable, along with a preconnected `browser` global and standard `console` output.\nA background daemon starts automatically when needed and manages browser instances,\nnamed pages, and CDP connections.\n\nSANDBOX ENVIRONMENT:\n  Scripts execute inside a QuickJS WASM sandbox with no arbitrary access to the host system.\n  This is NOT Node.js — the following are NOT available:\n    - require() / import()     No module loading\n    - process                  No process access\n    - fs / path / os           No direct filesystem access\n    - fetch / WebSocket        No direct network access\n    - __dirname / __filename   No path globals\n\n  Available globals:\n    browser                    Pre-connected browser handle (see API below)\n    console                    log, warn, error, info (routed to CLI output)\n    setTimeout / clearTimeout  Basic timers\n    saveScreenshot(buf, name)  Save a screenshot buffer (async, must be awaited)\n    writeFile(name, data)      Write a file to temp dir (async, must be awaited)\n    readFile(name)             Read a file from temp dir (async, must be awaited)\n\n  Memory and CPU limits are enforced. 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Anonymous pages are cleaned up after the script exits.\n  browser.listPages()       List all tabs: named pages and existing browser tabs.\n                            Returns [{id, url, title, name}].\n  browser.closePage(name) Close and remove a named page.\n  await saveScreenshot(buf: Buffer, name: string): Promise<string>\n                          Save a screenshot buffer to ~/.dev-browser/tmp/<name>.\n                          Returns the full path to the saved file.\n                          Example: const path = await saveScreenshot(await page.screenshot(), \"home.png\");\n\n  await writeFile(name: string, data: string): Promise<string>\n                          Write data to ~/.dev-browser/tmp/<name>.\n                          Returns the full path to the written file.\n                          Example: const path = await writeFile(\"results.json\", JSON.stringify(data));","is_error":false}]},"parent_tool_use_id":null,"session_id":"a061e0d2-d521-4d1a-a765-ad1b19c4e1d3","uuid":"7b91bad5-36bf-499f-bda0-118bdbcaffed","timestamp":"2026-04-03T09:09:03.979Z","tool_use_result":{"stdout":"Dev Browser is a CLI for controlling local or external browsers with JavaScript scripts.\nScripts run in a sandboxed QuickJS runtime (not Node.js). Top-level `await` is\navailable, along with a preconnected `browser` global and standard `console` output.\nA background daemon starts automatically when needed and manages browser instances,\nnamed pages, and CDP connections.\n\nSANDBOX ENVIRONMENT:\n  Scripts execute inside a QuickJS WASM sandbox with no arbitrary access to the host system.\n  This is NOT Node.js — the following are NOT available:\n    - require() / import()     No module loading\n    - process                  No process access\n    - fs / path / os           No direct filesystem access\n    - fetch / WebSocket        No direct network access\n    - __dirname / __filename   No path globals\n\n  Available globals:\n    browser                    Pre-connected browser handle (see API below)\n    console                    log, warn, error, info (routed to CLI output)\n    setTimeout / clearTimeout  Basic timers\n    saveScreenshot(buf, name)  Save a screenshot buffer (async, must be awaited)\n    writeFile(name, data)      Write a file to temp dir (async, must be awaited)\n    readFile(name)             Read a file from temp dir (async, must be awaited)\n\n  Memory and CPU limits are enforced. Infinite loops will be interrupted.\n\nPrimary invocation styles:\n  dev-browser <<'EOF'\n    const page = await browser.getPage(\"main\");\n    await page.goto(\"https://example.com\");\n    console.log(await page.title());\n  EOF\n\n  dev-browser run script.js\n  dev-browser --browser my-project < script.js\n  dev-browser --connect http://localhost:9222 <<'EOF'\n    const page = await browser.getPage(\"main\");\n    await page.goto(\"https://example.com\");\n  EOF\n  dev-browser --connect <<'EOF'\n    const page = await browser.getPage(\"main\");\n    console.log(await page.title());\n  EOF\n\nScript API available inside every script:\n  browser.getPage(nameOrId) Get a page by name (creates if new) or connect to an existing\n                            tab by its targetId from listPages().\n  browser.newPage()       Create an anonymous page. Anonymous pages are cleaned up after the script exits.\n  browser.listPages()       List all tabs: named pages and existing browser tabs.\n                            Returns [{id, url, title, name}].\n  browser.closePage(name) Close and remove a named page.\n  await saveScreenshot(buf: Buffer, name: string): Promise<string>\n                          Save a screenshot buffer to ~/.dev-browser/tmp/<name>.\n                          Returns the full path to the saved file.\n                          Example: const path = await saveScreenshot(await page.screenshot(), \"home.png\");\n\n  await writeFile(name: string, data: string): Promise<string>\n                          Write data to ~/.dev-browser/tmp/<name>.\n                          Returns the full path to the written file.\n                          Example: const path = await writeFile(\"results.json\", JSON.stringify(data));","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
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{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01NyiqYPmovVxN5Yfmt5hqj1","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01HncR9Kr94CtDjvSyVyb5DP","name":"Bash","input":{"command":"dev-browser --headless --browser axi-bench-dev-browser-github_issue_investigation-run1 << 'EOF'\nconst page = await browser.getPage(\"main\");\nawait page.goto(\"https://github.com/facebook/react/issues\");\nawait page.waitForSelector('body', { timeout: 15000 });\nawait page.waitForTimeout(3000);\n\nconst result = await page.evaluate(() => {\n  // Try to find open issues count\n  let openCount = null;\n  const allLinks = document.querySelectorAll('a');\n  for (const link of allLinks) {\n    if (link.href && link.href.includes('state=open') && link.textContent.includes('Open')) {\n      openCount = link.textContent.trim();\n      break;\n    }\n  }\n  \n  // Try issue title selectors\n  const titles = [];\n  const selectors = [\n    '[data-testid=\"issue-pr-title-link\"]',\n    '.js-issue-row a.js-navigation-open',\n    '.Link--primary[href*=\"/issues/\"]'\n  ];\n  \n  for (const sel of selectors) {\n    const els = document.querySelectorAll(sel);\n    if (els.length > 0) {\n      Array.from(els).slice(0, 5).forEach(el => titles.push(el.textContent.trim()));\n      break;\n    }\n  }\n  \n  return { openCount, titles, url: window.location.href };\n});\n\nconsole.log(JSON.stringify(result, null, 2));\nEOF","description":"Navigate to facebook/react issues and extract data"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1321,"cache_read_input_tokens":16526,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1321},"output_tokens":10,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"a061e0d2-d521-4d1a-a765-ad1b19c4e1d3","uuid":"f4dd20d9-1079-45ac-9dec-b5620f5a2e78"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01HncR9Kr94CtDjvSyVyb5DP","type":"tool_result","content":"{\n  \"openCount\": null,\n  \"titles\": [\n    \"Rename DO_NOT_USE_OR_YOU_WILL_BE_FIRED_EXPERIMENTAL_IMG_SRC_TYPES used for <img> to something meaningful.\",\n    \"Bug: Large TypedArray props hang browser in dev mode in 19.2.X\",\n    \"Bug: [Fiber] Apps that have data-heavy props or state use hundreds of MBs of extra memory\",\n    \"Bug:\",\n    \"Bug: Hydration mismatch on <script defer> rendered inside <head>\"\n  ],\n  \"url\": \"https://github.com/facebook/react/issues\"\n}","is_error":false}]},"parent_tool_use_id":null,"session_id":"a061e0d2-d521-4d1a-a765-ad1b19c4e1d3","uuid":"97c45eb4-1246-422e-a364-112de91373cd","timestamp":"2026-04-03T09:09:14.599Z","tool_use_result":{"stdout":"{\n  \"openCount\": null,\n  \"titles\": [\n    \"Rename DO_NOT_USE_OR_YOU_WILL_BE_FIRED_EXPERIMENTAL_IMG_SRC_TYPES used for <img> to something meaningful.\",\n    \"Bug: Large TypedArray props hang browser in dev mode in 19.2.X\",\n    \"Bug: [Fiber] Apps that have data-heavy props or state use hundreds of MBs of extra memory\",\n    \"Bug:\",\n    \"Bug: Hydration mismatch on <script defer> rendered inside <head>\"\n  ],\n  \"url\": \"https://github.com/facebook/react/issues\"\n}","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01J4u5vsmKYggvPfju1RiS9p","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01RS5sytckQ4evDpFpttCZUn","name":"Bash","input":{"command":"dev-browser --headless --browser axi-bench-dev-browser-github_issue_investigation-run1 << 'EOF'\nconst page = await browser.getPage(\"main\");\n\nconst result = await page.evaluate(() => {\n  // Look for the open issues count more broadly\n  let openCount = null;\n  \n  // Check for elements containing \"Open\" near a number\n  const spans = document.querySelectorAll('span, a, button');\n  for (const el of spans) {\n    const text = el.textContent.trim();\n    if (/^\\d[\\d,]* Open$/.test(text) || /^Open \\d[\\d,]*$/.test(text)) {\n      openCount = text;\n      break;\n    }\n  }\n  \n  // Try the issues tab counter\n  if (!openCount) {\n    const tabItems = document.querySelectorAll('[role=\"tab\"], .tabnav-tab, #issues-tab');\n    for (const tab of tabItems) {\n      if (tab.textContent.includes('Issues')) {\n        const counter = tab.querySelector('.Counter, [data-testid=\"count\"]');\n        if (counter) {\n          openCount = counter.textContent.trim() + ' open issues';\n          break;\n        }\n      }\n    }\n  }\n  \n  // Look for the \"X Open\" text in the issues list header\n  if (!openCount) {\n    const headers = document.querySelectorAll('h2, h3, [class*=\"Header\"], [class*=\"header\"]');\n    for (const h of headers) {\n      if (/\\d+\\s+Open/.test(h.textContent)) {\n        openCount = h.textContent.trim().substring(0, 100);\n        break;\n      }\n    }\n  }\n  \n  // Search all text nodes\n  if (!openCount) {\n    const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT);\n    let node;\n    while (node = walker.nextNode()) {\n      if (/\\d[\\d,]*\\s+[Oo]pen/.test(node.textContent)) {\n        openCount = node.textContent.trim().substring(0, 100);\n        break;\n      }\n    }\n  }\n  \n  return { openCount, pageTitle: document.title };\n});\n\nconsole.log(JSON.stringify(result, null, 2));\nEOF","description":"Extract open issues count with broader search"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":681,"cache_read_input_tokens":17847,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":681},"output_tokens":72,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"a061e0d2-d521-4d1a-a765-ad1b19c4e1d3","uuid":"74fe6f80-3104-4568-866d-ed2da61b8b95"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01RS5sytckQ4evDpFpttCZUn","type":"tool_result","content":"{\n  \"openCount\": \"820 open issues\",\n  \"pageTitle\": \"Issues · facebook/react · GitHub\"\n}","is_error":false}]},"parent_tool_use_id":null,"session_id":"a061e0d2-d521-4d1a-a765-ad1b19c4e1d3","uuid":"39e3a0a5-1e76-471d-a3a9-2e8e72d5197b","timestamp":"2026-04-03T09:09:27.099Z","tool_use_result":{"stdout":"{\n  \"openCount\": \"820 open issues\",\n  \"pageTitle\": \"Issues · facebook/react · GitHub\"\n}","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01SjtsSi44Ffnx9e4qwg6rrj","type":"message","role":"assistant","content":[{"type":"text","text":"Here are the results from the [facebook/react issues page](https://github.com/facebook/react/issues):\n\n---\n\n**Total open issues: 820**\n\n**5 most recent issues:**\n1. Rename `DO_NOT_USE_OR_YOU_WILL_BE_FIRED_EXPERIMENTAL_IMG_SRC_TYPES` used for `<img>` to something meaningful.\n2. Bug: Large TypedArray props hang browser in dev mode in 19.2.X\n3. Bug: [Fiber] Apps that have data-heavy props or state use hundreds of MBs of extra memory\n4. Bug: *(title appears truncated/empty)*\n5. Bug: Hydration mismatch on `<script defer>` rendered inside `<head>`"}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":703,"cache_read_input_tokens":18528,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":703},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"a061e0d2-d521-4d1a-a765-ad1b19c4e1d3","uuid":"188c9c67-29a4-4c9e-b22d-862a77f0a32a"}
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