v0.11.0

Added

• plugin rm — guarded plugin uninstall. The only plugin-removal path (sync and mirror stay additive). syncthis plugin rm <plugin…> uninstalls each named plugin's native install from the scoped plugin-capable agents (claude plugin uninstall, codex plugin remove) and removes that plugin's surfaced skills from the scoped non-plugin agents (npx skills remove) — the "everywhere" reach matching how mirror spreads a plugin's content. Guarded like MCP rm: explicit scope (--all or --agents <a,b,c>), a diff before any write, TTY-confirm or --yes, and --dry-run. Each argument is name or name@marketplace — a bare name removes every installed instance (a name from two marketplaces is never collapsed to an arbitrary one); @marketplace scopes to one. Skill removal also reaches Codex when the mirror surfaced a plugin's skills there via the fallback. Over-removal guard: a skill another still-installed plugin record (incl. a sibling marketplace) provides is kept. --keep-data preserves Claude's plugin data dir. The interactive picker gains a matching checkbox flow (pick plugins → pick agents → confirm).
• plugin list is now a cross-agent overview. Previously it read only Claude and Codex. Now it also reports Cursor as a write-only target (not readable) and, from one npx skills list -g --json, the plugin-derived skills present on each non-plugin agent — the true "what plugin content do I have, everywhere" picture.
• Selective add/remove — pick the exact items and agents. A verb-noun grammar over the existing primitives: add skill <repo…> / add plugin <name…> (additive; --dry-run) and rm skill <name…> / rm mcp <server…> / rm plugin <name…> (guarded: explicit --all xor --agents <a,b,c>, diff, confirm/--yes, --dry-run). rm <server> --all still works (back-compat). No add mcp — syncthis mirrors MCP servers, it doesn't install them, so MCP stays sync + remove only. add plugin is a narrowed mirror: it pushes the chosen plugin from Claude (the source) to the chosen agents — native install on Codex, Cursor push, and bundled skills + MCP to chosen non-plugin agents. The TUI gains an "Add or remove capabilities" flow (capability → operation → item checkbox → agent checkbox → confirm). rm mcp can now scope to specific agents (--agents), not just every agent.

Changed

• PluginAdapter gained uninstallPlugin (Claude, Codex). skills.ts gained removeSkillNames, listInstalledSkills, and resolvePluginDerivedSkills. Removal is now a documented, rail-guarded capability (sacred element #1 updated) — it was previously forbidden for plugins.