* claim: #5822
* Batch: consecutive parameter edits can rebuild the design once (#5822)
An agent's batch of parameter edits, one parameter per step, evaluated the
design once per edit: an edit early in the timeline rebuilds nearly all of
it, and 21 such edits ran for minutes.
engine.batch and the MCP batch tool take coalesce_parameters (default
false). With it, each run of consecutive plain parameter edits
(parameters.change with only a name and an expression, or with changes) is
set as one parameters.change {changes}: one rebuild for the run. Any other
step ends a run, so later steps see the design up to date. Every step
still gets its own result (coalesced: the run's length); the run is one
undo step. A run whose combined edit is refused (a new parameter, which
changes can't make; a bad expression) runs step by step, so a refused edit
is still named by its own step. The app's off-thread evaluation computes
the run the same way. The grouping is solidcraft_engine::batch_params,
shared by both runners.
21 parameter edits on a plate with 21 extruded bosses (in-process MCP,
ci profile): 40.1 s step by step, 3.5 s coalesced, the same volume.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Batch coalescing: say a run skips the states between its edits; test it against step by step (#5822)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
DuBearte
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