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01Issue
BugClosedSwamp CLI
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#652 swamp serve does not open the UI

Opened by evrardjp · 6/15/2026

Description

swamp serve starts a WebSocket API server but does not open the browser-based UI, and the UI appears to fail when accessed in the repo.

Steps to Reproduce

  1. Run swamp serve in a repository directory
  2. Observe that no browser window opens
  3. Attempt to access the UI manually — it fails to load

Expected Behavior

swamp serve should either open the UI automatically in the browser, or serve the UI assets correctly so that navigating to the configured port (default: 9090) loads a working interface.

Fix Summary

The fix would involve either auto-launching the browser on serve start, or ensuring the UI static assets are correctly bundled and served on the configured host/port.

Environment

  • swamp version: 20260614.213651.0-sha.1e4e4ea0
  • OS: Linux (Fedora, kernel 7.0.8-200.fc44.x86_64)
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Closed

6/15/2026, 9:44:10 AM

No activity in this phase yet.

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evrardjp commented 6/15/2026, 8:40:30 AM(edited)

Oh well, I assume this is because the whole UI went away? When did that happen? What did I miss?

Sorry of that claude generated bug report is not great.

stack72 commented 6/15/2026, 9:44:07 AM

hey @evrardjp, yes the swamp open command went away at the end of last week and there's already work underway to replace it - the premise of that subsystem had drifted very badly from the swamp serve endpoint - sorry if this caused any issues here!

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