Skills（SKILL.md）は、AIエージェント（Claude Code、Cursor、Codexなど）に特定の能力を追加するための設定ファイルです。
詳しく見る →Operate the `first-tree gardener` CLI — an automated maintenance agent that responds to reviewer feedback on Context Tree sync PRs, posts structured verdict comments on source-repo PRs/issues, and (push mode) installs a GitHub Actions workflow that replaces the long-running gardener service with event-driven per-PR sync. Use whenever a task involves reviewing, responding to, or resolving feedback on tree sync PRs, gating source-repo PRs/issues against a Context Tree, or setting up automatic tree-issue creation from a codebase's CI.