docs: align skill workflow documentation

docs/INSTALLER.md

@@ -65,7 +65,15 @@ When a selected install/update needs Superpowers and none are detected for the t
 - symlink is recommended because updates to the source checkout are immediately visible
 - copy is more self-contained but must be updated manually
 
-For Cursor, the wizard installs Superpowers at `<scope>/superpowers/skills` because Cursor variants expect `superpowers/skills/<skill>/SKILL.md`. Codex commonly reuses the shared `~/.agents/skills/superpowers` convention documented in [CODEX.md](./CODEX.md).
+The wizard recognizes client-native and plugin-managed Superpowers installs before asking to add another copy:
+
+- Codex: `~/.agents/skills/superpowers` or `~/.codex/superpowers/skills`
+- Claude Code: `~/.claude/skills/superpowers` or the enabled `superpowers@claude-plugins-official` plugin cache
+- Cursor: `.cursor/skills/superpowers/skills`, `~/.cursor/skills/superpowers/skills`, or the Cursor public Superpowers plugin cache
+- OpenCode: `~/.agents/skills/superpowers` or `~/.config/opencode/skills/superpowers`
+- Pi: `~/.agents/skills/superpowers`, `~/.pi/agent/skills/superpowers`, or `.pi/skills/superpowers`
+
+When Cursor has no plugin/cache install, the wizard installs Superpowers at `<scope>/superpowers/skills` because Cursor variants expect `superpowers/skills/<skill>/SKILL.md`. Symlinking is still preferred when the source tree is managed locally. Codex and OpenCode can commonly reuse the shared `~/.agents/skills/superpowers` convention documented in [CODEX.md](./CODEX.md) and [OPENCODE.md](./OPENCODE.md).
 
 When removing the last repository workflow skill from a client/scope, the wizard asks whether to remove Superpowers for that variant too.