Claude Code's Progressive Disclosure Lets Developers Install 30+ Skills Cost-Efficiently

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A technical explainer from the 'Automating Playwright with Claude Code' series details how Claude Code manages installed Skills through a three-layer progressive disclosure system. At session start, only a Skill's frontmatter — its name and description, roughly 100 tokens — is loaded into context for every installed Skill. The full Skill body loads only when a user's request matches that Skill's description, and associated files load only when a specific step within the body calls for them. This architecture means developers can install dozens of Skills covering an entire test lifecycle without incurring token costs for Skills not relevant to the current request. The post also highlights that the description field is the most critical part of a Skill, as it solely determines whether deeper layers are triggered.

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ProgrammingDEV Community ·

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