An in-workspace .md path clicked in the terminal went to the log viewer
(tail -f, a "streaming" header over raw text), because md was kept out
of FILE_PREVIEW_EXTENSIONS on purpose; every other surface already
rendered it. Owner decision 2026-10-13: markdown is a document to read,
so md and markdown join FILE_PREVIEW_EXTENSIONS and a click or tap opens
the file preview, rendered by default with the MD pill for source. The
main pane, every grid tile and the split's Pane B share the link
provider, so all of them route the same way. Other in-workspace text
(.log, .txt, .json, code) keeps the log viewer and its live follow.
FILE_PATH_LINK_PATTERN now also links `.markdown` and `.htm`, which
were not clickable at all.
Tests: file-preview-markdown.test.ts now asserts md and markdown ARE
routed to the preview (and plain text is not); terminal-touch-tap pins a
tapped .md, .markdown and .html opening the preview while .log, .txt and
.json open the log viewer, and a tile-registered provider routing the
same way against the tile's own session. Docs: CLAUDE.md, the
architecture invariants and the wiki (Working With Files, Mobile Guide).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Codeman maintainer
79b9181932