A smaller, reproducible upgrade question.

Instead of asking whether an upgrade is “safe”, ask what these two exact client versions do with this captured run.

Reviewed October 15, 2026 · Pinned npm clients 0.0.59 and 1.0.2 · Original local fixtures

Why this tool exists

Capture and generic event inspection already have useful free tools. RunBridge focuses on the version boundary: two real clients consume the same input, and a portable artifact preserves what happened. The result is intentionally tied to the recorded versions and capture.

It includes original examples for custom metadata, optional nulls and tool-result media. You can also supply your own JSON, JSONL or SSE trace and initial context. The tool does not run an AI model or charge for a comparison.

Independent project

RunBridge is independent software on browzensw.com. It is not an official AG-UI, CopilotKit, browser-vendor or Cloudflare product, and it does not adopt an identity or history from an earlier use of this domain. Product names describe the systems being discussed, without implying endorsement.

Related tools and corrections

The same project owner operates WebTraceCheck and CleanTempMail. Their limited, optional role is described in the owned-app workflow. They are not required for the comparator.

For a reproducible website bug or source correction, contact support@cleantempmail.com. Include the action and observed outcome. Use synthetic data when possible; do not send a production transcript, secret or account credential merely to report a UI problem.