[currentbits]

Summary

Fixes #492. Assistant Markdown and tool-card headers/args treated file paths as dead text — only http(s) links were clickable. Review meant copy the path, switch to an editor, paste. The CLIs already did the click.

Paths the model prints (src/foo.ts, `src/foo.ts:40`, a Read/Edit card argument) now open the file in this thread's worktree, not the main checkout.

What changed

• Detect repo-relative and absolute paths (optional :line / :line:col) in assistant Markdown and tool-card headers/args.
• Click → shell.openPath. Cmd/Ctrl-click → reveal in Finder.
• Relative paths resolve against thread.worktreePath (else the project root). files:resolve checks existence and workspace membership; missing files, URLs, and npm names stay plain text.
• Hover underline only — no underline storm.
• Tool-card expand control is a sibling of the summary so a path link is not nested inside a button.

Out of scope: jumping the editor to a line (data-path-line is set, open still hands the file to the default app). Built-in editor remains #162.

Tests

node --experimental-strip-types --test test/pathLinks.test.ts
node --import=./test/support/disable-grok-mcp.mjs --import=./test/support/render.mjs \
  --experimental-strip-types --test --test-timeout=20000 \
  test/markdown.test.tsx test/threadView.test.tsx
node --test --test-timeout=30000 \
  electron/test/files-resolve.test.js electron/test/ipc-seam.test.js

Covers relative file, missing file, file:12, and http left alone. Renderer suite 1048 pass. Typecheck clean.

• PR created by the Grok agent

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