You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SkillsArea: what it touches
ImprovementsKind: in v2.1.310,
ImprovementsSection of the release
What
The /claude-api skill needs to save its reference files to disk. When that fails, it now also tells you that managed-agents-onboard <url> is unavailable, says that running /claude-api again will retry saving the files, and stops there.
The skill also bundles reference documents on these topics:
API version migration
platform availability
prompt auditing
live sources
Managed Agents memory
Managed Agents onboarding, including onboarding from a URL
Managed Agents self-hosted sandboxes
Anthropic on Google Cloud for Managed Agents
It adds a table of model deprecations with their dates. The live sources document now drops the third column of each table row when it is shown to Claude.
Why
This is the content behind the skill's model retirement and API version features. If onboarding from a URL fails, you now get a clear reason and a way to retry instead of a silent failure.
