Follow-up trim to @JE4NVRG's salvaged commit (is_connected → env_is_connected("A2A_PORT")):
- plugins/platforms/a2a/tools.py::_a2a_tools_available read os.getenv("A2A_PORT") too — the
same unscoped gate in the same plugin, so every secondary profile also paid for the a2a
toolset whenever the launch profile set A2A_PORT. Now get_scoped_secret, same policy as
the adapter's port read (scoped miss fails closed; default/T1 reads its own environ).
- Tests trimmed to two invariants: A→B→A over two temp profile homes under
set_multiplex_active(True) with the launch value in os.environ (profile B with no
A2A_PORT of its own is NOT connected and gets no tools; red on origin/main at index 1),
and the standalone T1 case where os.environ IS the profile.
Row L1 (boot-time platform enablement probe), topologies T2/T3 (multiplexed host serving
secondary profiles). No other plugins/platforms/*/__init__.py is_connected/check_requirements
does an unscoped env read (buzz #125985 is handled separately).
Co-authored-by: JE4NVRG <jean.v1803@gmail.com>
75b6d946cd