Every installed skill's name+description is preloaded every session -
23,612 chars (~6,200 tokens) across 39 skills. The authoring rules
optimised for triggering reliability with no counter-pressure on size:
skill-author:104 and description-quality.md:21 both mandate padding,
while skill-author:102 (the rule that would deflate it) is
judgment-only and absent from description-quality.md's FAIL conditions.
ADR-0020 sets the description shape (trigger + one capability +
boundary), two-tier size gates sitting below the unchanged
agentskills.io ceilings, a mandatory dispatch pattern for multi-branch
bodies, a Gotchas constraint, an agent-side delegation check, and
invocation as a design axis. Gates ship blocking with no baseline.
Adds five CONTEXT.md glossary entries: preload tax, skill context
contract, dispatch body, hand-invoked skill, delegation discipline.
Refs: ADR-0020
Defame1297
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