Activating the skill answered with the entrypoint plus a flat listing of every
file in the package, and nothing carried over between requests: the agent is
rebuilt per request, no thread memory is configured, and the replayed history is
plain question/answer text. So the model re-activated on every turn and paid for
that listing every time, twice more whenever a retry opened a fresh model loop.
The method is now read from the hash-verified package and bound into the
instructions, and the activation tools are withdrawn while skill_read stays. The
agents also stopped loading from the working-tree view, whose reference listing
no hash covered - only SKILL.md was compared - so what the model sees is finally
what the registry pinned.
Withdrawing an activation the model could forget also removes the failure it
mostly produced: the contract no longer waits on a model action for method, and
the no-birth-time path has no contract left to repair.
Measured against this package: activation 118,352 bytes, bound method 47,289.
Co-authored-by: Cursor <cursoragent@cursor.com>
Jesse_Chen
d04fc30b63