* M2: components can't contain their own instances (#1084)
Edits that would make a component hold an instance of itself, directly, through other components or through another variant of its set, are refused with the loop named. Files holding such a loop open with one instance per loop detached and a note; a rebuild never expands an instance inside a copy of itself, so a loop merged in a live session stops growing.
* M2: a variant may hold a sibling variant's instance; only true loops are refused (#1084)
Each variant counts as its own component: refusals and open-time repairs apply only to a component leading back to itself through instances (an instance-swap value included), so files with nested sibling variants open unchanged. sync_instance_depth is split into match_layers and copy_layers.
Every command an MCP client runs acts as the client's name from initialize (clientInfo.title, else .name) with ' (agent)' after it, or 'AI agent' without one, carried to the app as engine.execute {agent}. Its messages, reactions and read state are its own, and its messages are marked (agent: true in the file and comment.list, an Agent label in the thread). The user's name and comments made in the app are unchanged; in live sessions the name and marker travel with the thread.
Before commands can refuse names their docs don't list (#1413), the docs
have to list what the code reads. These are the top-level names the run
code (and every helper it hands the params to) reads that its doc left
out, all checked against the code; nothing changes behaviour:
- creation: node.create (characters, points, closed), frame.create,
shape.*, text.create and vector.create (index, name, select),
image.place (name)
- aliases the code already took: comment.* (id | link), annotation.add
and annotation.edit (label | text), text.set (characters | text),
text.listStyle (style | list), fill.add and stroke.add (paint | color),
proto.interaction.add/set (durationMs | duration_ms, delayMs | delay_ms)
- options: file.export and export.update (contentsOnly,
includeBoundingBox, svgOutlineText, svgSimplifyStroke), comment.next
(frame, resolved), layout.suggest (direction), variable.create
(description), vector.edit.widthPoint (side), collab.share (key),
collab.manageFile (access, label, link, name), fill.pattern (visible,
blend)
- docs whose shape hid a name: proto.interaction.add (a stray `}` closed
the object before delayMs; dest was only in a trailer),
proto.interaction.set (patch fields in a second object), collab.join
(a top-level comma inside the link examples), pref.uiScale (commas in
the value's description)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
command.batch and the MCP batch tool take onError: "abort" (the default, unchanged) or
"continue". In continue mode each step runs inside a rollback-only checkpoint split out of
Session::grouped: a failed step is rolled back on its own, later steps still run, and the result
is one {step, command, ok, result|error} object per step. What was applied is one undo step; a
reference to a failed step fails too; malformed batches are still rejected before any step runs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Co-Authored-By: GPT-6.1 Sol <noreply@openai.com>
Co-Authored-By: GPT-6 Astra <noreply@openai.com>
BFlat