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browser-trace - Capture and Bisect Browser CDP Traces

Captures a read-only CDP event stream with screenshots and DOM dumps, then splits the data into searchable per-domain and per-page files.

Tags

Updated: 2026-09-30
browser automationCDPtracingdebuggingobservabilityBrowserbase

Capabilities

Attach a read-only CDP clientCapture CDP events as NDJSONPoll screenshots and DOM dumpsBisect traces into searchable buckets

Typical Inputs

Running CDP browser sessionCDP target or connect URLRun identifier

Typical Outputs

Raw CDP event streamTimestamped screenshots and DOM dumpsPer-domain JSONL buckets

What this skill does

  • Attach a read-only CDP client
  • Capture CDP events as NDJSON
  • Poll screenshots and DOM dumps
  • Bisect traces into searchable buckets
  • Split events into per-page slices
  • Fetch Browserbase session artifacts

Inputs

  • Running CDP browser session
  • CDP target or connect URL
  • Run identifier
  • Browserbase session ID
  • Browserbase API key

Outputs

  • Raw CDP event stream
  • Timestamped screenshots and DOM dumps
  • Per-domain JSONL buckets
  • Per-page trace slices and summaries
  • Browserbase session artifacts
  • Updated run metadata

Requirements

  • Node.js 18 or newer
  • browse CLI with cdp support
  • CDP-enabled browser session
  • jq for optional querying
  • Browserbase API key for remote sessions

Source

  • Spec: SKILL.md

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