Comments become the task queue for an attached or headless MCP client: comment.prompt returns a bounded Markdown brief, the Comments panel gains Copy for AI, and the MCP server exposes fix_comments, watch_comments, figcraft://comments and wait_for_changes. Mutating comment.* commands append to a bounded in-memory event log; the control channel's events.poll long-polls it without the UI thread, and a successful batch commits its events only if the whole batch lands. No model, network dependency, asset or file-format change.
A behaviour suite for comments and version history written from the public documentation
(`crates/engine/src/history_behaviour_tests.rs`, 15 tests, about 80 table rows plus stepwise checks),
each row with a one-line derivation; where the documentation is silent the row says so and pins
today's behaviour. 4 of the 15 tests failed on the old code. Fixes, all in shared engine code:
- **Live sessions: comment threads made in the session couldn't be used.** Their ids come from the
creator's id space (e.g. 4294967297) and every thread command (`comment.reply`, `edit`, `react`,
`resolve`, `move`, `delete`, `markRead`, `open`, `link`) refused them as "out of range".
Comment ids are now parsed as ids, not small indexes.
- **Restoring a version lost newer comments.** Comments are a conversation about the file, kept
apart from its design history: restoring now keeps the current comments; a comment on a layer
the version doesn't have stays where it was (on the nearest surviving parent, or the canvas).
- **Restoring now keeps the replaced design in the history** as an autosave first, unless a
version of it was just saved or restored (so work isn't only in the session's undo history).
The checkpoint marker is now "none yet" for a freshly opened file and compares contents when
normalising copied the document.
- **A titled autosave becomes a named version** (`version.rename` clears `auto`), so it is no longer
dropped when autosaves make room.
- **Merging a branch adds to the main file's history:** the main file as it was (an autosave,
when it changed since its last version), then `Merged “<branch>”`.
- `version.restore` refuses up front for a view-only live session (nothing goes into the history).
Pinned where the documentation is silent: pins go to the innermost frame under them (not to a
leaf layer); copies, duplicates and duplicated pages come without comments; replying reopens a
resolved thread; only authors delete their messages (no accounts); stepping past the last thread
stays on it; comments show on the canvas by default; versions stay with whoever saved them in a
live session.
`crates/engine/src/collab_live_tests.rs`: the test `Room` is `pub(crate)` so the suite can run a
live session. `crates/engine/src/cmd/props.rs`: one line reformatted by `cargo fmt` (it was
unformatted on the base, which failed the fmt check). `crates/render/src/effects_behaviour_tests.rs`:
the paint suite expected an offset drop shadow to grow the export on every side, but the later export
suite made exports grow only where the shadow falls (40 x 50 for a shadow 10 down); the base failed
the gate on it, so the expectation now says "grows" (wider or taller). No new commands.
Docs: collaboration-parity, target-app-parity (area 16 85%/60% -> 85%/62%, 2-5 h -> 2-4 h; full
parity ~306-595 h -> ~306-594 h; percentages unchanged at this rounding), ROADMAP (also corrects the
stale area 16 row, 80%/58%/4-8 h), gaps (gap 4's landed list), mcp.md.
- Styles, variables, collections, modes and comment threads created in a live
session take ids from the creator's client space (figcraft_doc::ids: a
number from the node id allocator, client_id << 32 | counter); outside a
session ids are made exactly as before. The server refuses a new entry in
another connected client's space (removed entries can be put back by undo),
keeps removed entries in its saved state, and starts client ids above every
space used by any kind of id.
- Others' text carets and selected characters show on the canvas in their
colour at the glyph positions, with their name above the caret (no blinking,
no frames of their own). Typing in a layer someone else is typing in says so
(toast and tag); collab.peers reports who types where.
- Toasts wrap at a readable width.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Pins follow their layers (to other pages too) and stay where they were
when the layer is deleted, re-pinned to the nearest surviving parent;
your pins drag onto another frame; crowded pins cluster when zoomed out
and a click zooms them apart; Shift+C shows or hides them.
Threads: edit and delete your own messages (marked edited), emoji
reactions, @mentions with a picker of the names used in the file (your
name from Preferences), read/unread state per name, and Copy link
(figcraft://comment/<id>; pasting it or comment.open goes to the page,
zooms to the frame and opens the thread).
Comments panel: search (text, names, frame), filters (open, resolved,
yours, unread), sort by date or page, each thread's frame and page,
Up/Down to step through threads. The presenter shows the presented
frame's comments (Comments button or Shift+C) to read and reply.
New commands: comment.react, comment.markRead, comment.open,
comment.next, comment.zoom, comment.link, comment.people,
pref.userName; comment.list gains filter/sort/query/frame, comment.move
re-pins. Old files load unchanged (the first message stays on the
comment; missing read state counts as read).
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
bflatastic