Mixer workflow
Automate the mixer only where readback exists.
The verified plug-in path is logic_plugins. It checks project identity, physical insert slot, plug-in identity, and supported parameter readback before State A.
Evidence reviewed 2026-07-13 by the Logic Pro MCP open-source project.
Before you begin
Prerequisites
- macOS 14 or later; Logic Pro 12.3 is actively validated, with 12.0.1 and later best-effort.
- Duplicate the project and record its exact path before applying a mixer write.
Verified path
Workflow
- 01
Inventory
Call logic_plugins get_inventory and require a complete read.
- 02
Confirm identity
Pass the duplicate project path as project_expected_path.
- 03
Apply
Use insert_verified or set_param_verified only for supported stock plug-ins and parameters.
- 04
Read back
Accept State A only when the requested physical slot or parameter matches after the write.
Observable evidence
What success means
The verified response reports the expected project, target slot or parameter, and matching post-write observation.
Current boundary
What this does not prove
set_param_verified currently supports Compressor threshold readback; arbitrary parameters fail closed.
Primary evidence
Verify at the source
Product behavior is pinned to the v3.11.0 source. Client registration details remain owned by the client vendor.
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