Wires the cairn MCP server and a SessionStart hook that injects cairn's structural-tool guidance (reach for find_symbols / find_subtypes / find_supertypes / find_callers / find_callees / find_references / find_imports before grep on structural questions; tier3_status / completeness / hints for empty-result recovery) into the host's context at the start of every session.
Installation
1
Add the marketplace
/plugin marketplace add naoto256/cairn
2
Install plugins
/plugin
Run these commands in Claude Code to add this plugin to your environment. The marketplace must be added before you can install its plugins.