No release ever shipped add-ons, so there is no installed base on api 1.
The manifest must now declare api {"min": 2, "max": 2}; a manifest with
api 1, no api or a wider range is refused with a message that names the
range.
Every field that was gated on api 2 is now part of the contract, so the
Min*API constants and their gates are gone, and so are HostAPIMin and
the apiMin host field. Three older-manifest shims go with them: the
resource listing the host implied for one add-on, the legacyArgs hint
for arguments an older version of a tool took, and the tests that
checked the gates. All shipped manifests and the test fixtures declare
api 2.
Assisted-by: Claude:claude-sonnet-5-5 go test
A tool that shadows bash can now declare an execution descriptor: its
class, a title and a note for the model, and the skill kinds whose
runtime it supplies. The host reads it to build its text and to decide
which skills need isolated execution, instead of knowing add-on IDs.
The field is optional and needs manifest API 2. The host now speaks
API 2 and still accepts add-ons that declare only API 1, so manifests
that declare nothing new keep working unchanged.
Assisted-by: Claude Code:claude-sonnet-5-5
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Ettore Di Giacinto