Tasks

• [x] Create skills/ directory in plugin root
• [x] Generate all 11 upstream skill files via openspec init --tools claude into a temp dir
• [x] Copy generated SKILL.md files into skills/<name>/ (11 directories)
• [x] Add openspec_cli tool: schema in schemas.py, handler in tools.py
• [x] Gate openspec_cli with check_fn (same _openspec_bin() is not None check)
• [x] Add skill registration loop in __init__.py register() — iterate skills/, call ctx.register_skill()
• [x] Register openspec_cli in __init__.py register()
• [x] Add openspec_cli to plugin.yaml provides_tools
• [x] Write docs/layers.md documenting the layer boundaries
• [x] Update README.md to mention bundled skills and layer architecture
• [x] Test: skills are discoverable via hermes skills list when plugin is installed
• [x] Test: /skill openspec-propose loads the skill into a session
• [x] Test: openspec_cli tool appears only when openspec binary is available
• [x] Test: openspec_cli returns raw JSON from openspec status --change <name> --json
• [x] Test: skills + plugin tools coexist without conflicts