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hermes - 💡(How to fix) Fix Terminal tool output URLs are not clickable in Ghostty (Cmd+Click)

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URLs output by Hermes through the terminal tool (and TUI response rendering) are not clickable via Cmd+Click in Ghostty terminal emulator. Bare URLs typed directly in a shell work fine.

Root Cause

Hermes wraps tool output with ANSI formatting codes (via Ink/Rich rendering pipeline). Ghostty's link detector (link-url = true) can only identify bare/unformatted URLs — when the text is surrounded by ANSI escape sequences, the URL regex match fails.

SourceFormatCmd+Click works?
User types echo "https://example.com" in shellBare text✅
Hermes terminal tool outputANSI-formatted❌
Hermes TUI assistant responseRich markdown rendered❌
RAW_BUFFERClick to expand / collapse

Description

URLs output by Hermes through the terminal tool (and TUI response rendering) are not clickable via Cmd+Click in Ghostty terminal emulator. Bare URLs typed directly in a shell work fine.

Root Cause

Hermes wraps tool output with ANSI formatting codes (via Ink/Rich rendering pipeline). Ghostty's link detector (link-url = true) can only identify bare/unformatted URLs — when the text is surrounded by ANSI escape sequences, the URL regex match fails.

SourceFormatCmd+Click works?
User types echo "https://example.com" in shellBare text✅
Hermes terminal tool outputANSI-formatted❌
Hermes TUI assistant responseRich markdown rendered❌

Reproduction

  1. Use Ghostty with link-url = true
  2. Run hermes --tui
  3. Ask Hermes to output a URL (e.g. "echo https://example.com")
  4. Cmd+Click the URL → nothing happens
  5. Run echo "https://example.com" directly in a new Ghostty tab → Cmd+Click works

Suggested Fix

Strip ANSI formatting codes from URLs before they enter the terminal output stream, or emit URLs as OSC 8 hyperlinks (\e]8;;URL\e\\TEXT\e]8;;\e\\) which Ghostty supports natively and which survive surrounding formatting.

Environment

  • Hermes version: latest (main branch)
  • Terminal: Ghostty 1.3.1 (macOS)
  • Config: link-url = true in ghostty config
  • Platform: macOS 26.4.1

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hermes - 💡(How to fix) Fix Terminal tool output URLs are not clickable in Ghostty (Cmd+Click)