v0.12.0

Added

• Selective MCP sync — share chosen servers from one agent to others. New core runSelectiveMcpSync (sync.ts): pick a source agent, pick specific MCP server names, pick destination agents, and add just those servers — additive and conflict-safe. A server name already present on a destination with a different config is left untouched and reported (same conflict policy as union sync, sacred element #3); a name missing from the source is reported as notFound. This is not an add mcp — it never installs a new server or overwrites one, it only spreads servers an agent already has, so MCP stays sync + remove only. Exposed interactively via the MCP manager's Sync selected flow (source → servers → destinations → preview → confirm).

Changed

• Interactive capability management, simplified. Running syncthis with no args now opens a top-level menu of per-capability managers — Manage plugins (sync selected / mirror / list / remove), Manage skills (add from repo / sync from plugins / update / remove), Manage MCPs (sync everything / sync selected / sync all only / remove / doctor), and Check problems — each walking the same source → items → destinations → preview/confirm shape. This replaces 0.11.0's single "Add or remove capabilities" entry. No CLI command behavior changed; the picker is just clearer to navigate.
• Skill add gained a force mode. addSkillsFromPlugins({ force }) bypasses the global already-present guard so the interactive "Add from repo" / "Sync from plugins" flows can re-add chosen plugin skills to chosen agents on demand, instead of being silently skipped when the skill name is already globally present. The default (non-force) run/sync path is unchanged — it still skips already-synced repos so a repeat run doesn't re-fetch.