You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
SkillsArea: what it touches
ImprovementsKind: in v2.1.222,
ImprovementsSection of the release
What
When the model tries to invoke a skill marked as user-only, the returned error now appends an explicit instruction against achieving the same thing another way.
Details
Applies to skills with disable-model-invocation set.
The added sentence closes the loophole of the model reading the skill and re-implementing its steps by hand.
Evidence
Do not replicate this skill's workflow by other means
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Read from
Names in the bundledisable-model-invocation
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeImproved the refusal when Claude tries to invoke a skill with disable-model-invocation: Claude is now told to ask you to run the skill…
