You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Agent ProxyArea: what it touches
ImprovementsKind: in v2.1.239,
ImprovementsSection of the release
What
When the environment reports command-line tools that are preconfigured to go through the agent proxy, the prompt now lists them by name and tells Claude to reach for a skill or MCP tool first, those CLIs second, and raw curl last.
Details
The list is only rendered when the environment supplies preconfigured proxy CLIs; otherwise the guidance is unchanged.
Evidence
prefer a skill/MCP tool, then these, over raw curl.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.