{
  "slug": "agent-browser-adds-an-observability-dashboard-8508fef808ce",
  "title": "agent-browser adds an observability dashboard",
  "tools": [
    "agent-browser"
  ],
  "tags": [
    "agent"
  ],
  "introduced_at": "2026-03-27T17:37:04.000Z",
  "announced_at": "2026-03-27T17:37:04.000Z",
  "effective_at": null,
  "date_basis": "source-publication",
  "status": "unknown",
  "how": {
    "incantation": "When you need to inspect agent-browser sessions while developing or debugging, install the dashboard once, then start it; sessions stream to it automatically. Use `--port <n>` to choose the dashboard port, and stop it with `agent-browser dashboard stop`.",
    "examples": [
      "agent-browser dashboard install\nagent-browser dashboard start\nagent-browser open <url>\nagent-browser dashboard stop",
      "agent-browser dashboard start --port 8080",
      "AGENT_BROWSER_STREAM_PORT=9223 agent-browser open <url>"
    ],
    "gotchas": [
      "Version: v0.23.0",
      "Requires agent-browser dashboard install",
      "--port <n> (dashboard start): Dashboard listening port; default is 4848.",
      "--port <port> (stream enable): Pins the session WebSocket streaming server to a specified port.",
      "AGENT_BROWSER_STREAM_PORT: Sets the WebSocket streaming port; otherwise the session uses an OS-assigned port.",
      "Dashboard runs as a standalone background process on port 4848 and remains available even when no sessions are running.",
      "Every session automatically starts a WebSocket stream server on an OS-assigned port.",
      "The dashboard's live viewport uses real-time JPEG frames.",
      "The WebSocket server streams the browser viewport and accepts input events.",
      "Dashboard port can be set with `--port`; stream port can be set with `AGENT_BROWSER_STREAM_PORT`.",
      "Runtime streaming can be managed with `stream enable`, `stream disable`, and `stream status`."
    ]
  },
  "why_it_matters": "Inspect live browser sessions and command activity while developing or debugging with agent-browser.",
  "sources": [
    "https://github.com/vercel-labs/agent-browser/releases/tag/v0.23.0",
    "https://github.com/vercel-labs/agent-browser/pull/1034",
    "https://github.com/vercel-labs/agent-browser/blob/v0.23.0/README.md",
    "https://github.com/vercel-labs/agent-browser/blob/v0.23.0/docs/src/app/streaming/page.mdx",
    "https://github.com/vercel-labs/agent-browser/blob/v0.23.0/docs/src/app/commands/page.mdx"
  ],
  "rank": 0.97049,
  "judge": {
    "publish": true,
    "judge_model": "codex-cli/gpt-6-luna+typesafe/jev-1.13.0",
    "prompt_version": "extract-v7+enrich-v2+judge-v2x3+jev-publish-v1"
  },
  "review_state": "approved",
  "provenance": {
    "run_id": "wave2a-20261017",
    "verdict_id": "wave2a-20261017:wave2a-20261017-5b75e3d5f93036fb-0:gate",
    "evidence_hash": "f84daf0ad085c21ff3795b4ebfcb7738f4eac0850967bc507cae53455515544a"
  },
  "review": {
    "draft_hash": "15b04fa6fb0845dc7f927984c466490458e28f17170da4f744c6cda0cbc28285",
    "reviewer": "publication-gate",
    "reviewed_at": "2026-10-07T00:00:00.000Z",
    "decision": "wave2a-20261017:gate",
    "reason": "3 of 3 judge runs approved with p_yes >= 0.9 (mean 0.97 >= 0.9; 2 needed) and Jev gave 0.66 (>= 0.6 needed)."
  }
}