A measurement of 6,434 distinct public agent skills, drawn from 7,670 SKILL.md files across 228 cloned repositories on 18 September 2026, found a skill's always-on context footprint is 78 tokens at th…
Anthropic's skills repository, anthropics/skills, has surpassed 170,000 stars and 20,000 forks on GitHub, becoming the de facto standard for packaging agent expertise through SKILL.md files. The forma…
A developer discovered that the official anthropics/skills repository contained outdated model identifiers, causing autonomous agents to call retired Anthropic API models and receive 404 errors. The d…
An engineer ran 150 standardized tasks to test whether AI agents follow rules, finding that mechanical enforcement (GateGuard hooks) achieved 99.3% compliance, far outperforming rule phrasing. The exp…