{"version":"2.1.307","anchor":"api-version-added-to-a-built-in-skillcommand-name-list","canonical_anchor":"api-version-added-to-a-built-in-skillcommand-name-list","heading":"An api-version name joins Claude Code's list of built-in skill names","tier":"internal","area":"Skills","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.307\/e\/api-version-added-to-a-built-in-skillcommand-name-list","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.307","markdown":"### An api-version name joins Claude Code's list of built-in skill names\n\nThe list of built-in names that includes migrate and upgrade now also includes api-version\n\n**Unclear.** It is unclear whether there is an api-version skill you can actually use.\n\n**What**\n\nClaude Code keeps a list of names for built-in skills and commands, with entries such as cost-optimize, migrate and upgrade. A skill is a packaged set of instructions Claude can use for a task. An empty slot in that list now holds the name api-version.\n\n**Why**\n\nThis may mean a new built-in skill, or only that a name slot was filled in.\n\n- Area: Skills\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 3\/5\n- Scope: individual\n- Heads-up: no"}