What
New settings to control how skills are presented to Claude in the system prompt, giving users fine-grained control over context usage.
Details
skillListingMaxDescChars(default: 1536) — Per-skill description character cap. Descriptions longer than this are truncated.skillListingBudgetFraction(default: 0.01 = 1%) — Fraction of the context window reserved for the skill listing. When the listing exceeds this, descriptions are shortened to fit.skillOverrides— Per-skill visibility override keyed by skill name. Values:"on"— full listing (default)"name-only"— listed without description"user-invocable-only"— hidden from the model but still available via/name"off"— hidden from both model and user- These settings can be configured at policy, flag, project, user, and local settings levels.
Evidence
Skill listing settings (search for "skillListingMaxDescChars") and overrides (search for "skillOverrides")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.