# Flat skill directories with category metadata, not nested paths

Skills are stored as flat directories directly under `.agents/skills/` (`grill-me/SKILL.md`, not `design/grill-me/SKILL.md`). Category organisation is expressed via `metadata: category:` in each SKILL.md frontmatter rather than directory nesting.

Nested paths were evaluated and rejected for three reasons. First, Claude Code discovers skills exactly one level deep under `~/.claude/skills/` — a skill at `~/.claude/skills/design/grill-me/SKILL.md` is invisible to the tool. Second, the agentskills.io open standard specifies that the `name` field must match the parent directory name, implying a flat structure at the skills root; no nested discovery is defined in the spec. Third, `install.sh` iterates `for skill_dir in .agents/skills/*/` — one level only; nested paths would require a traversal rewrite before a single nested skill could be deployed.

Category metadata achieves the same organisational goals: the Management App can group skills by category, a generated README can cluster them, and the category is machine-readable for tooling — all without path changes, pipeline changes, or deviation from the open standard. If Claude Code adds nested discovery in a future release, paths can be restructured then with evidence rather than speculatively now.