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MCP::ServerDiscovery.select(query, from:, threshold:) scores each server's name+description against the user query and returns only the relevant subset. mcp_discovery: true on Robot enables automatic filtering before the first MCP connection. MCP::Server gains a :description field. Falls back to all servers when no descriptions are present, the classifier gem is unavailable, the query is blank, or nothing scores above DEFAULT_THRESHOLD (0.05). 1081 tests, 0 failures, 98.39% coverage. Demo: examples/28_mcp_discovery.rb
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Summary
MCP::ServerDiscovery— TF cosine similarity selection of MCP servers by query relevanceMCP::Servergains a:descriptionfield used as the topic text for scoringRobotgainsmcp_discovery: true— filters servers before the firstensure_mcp_clientscallWhat ships
lib/robot_lab/mcp/server_discovery.rbServerDiscoverymodulelib/robot_lab/mcp/server.rbdescriptionattr reader + constructor param +to_hlib/robot_lab/robot.rbmcp_discovery: falseconstructor param + run-time filter hooktest/robot_lab/mcp/server_discovery_test.rbexamples/28_mcp_discovery.rbdocs/guides/mcp-integration.mdexamples/README.mdimprovements.mdTest plan
bundle exec rake test→ 1081 runs, 0 failures, 0 errors, 0 skips, 98.39% coverageruby examples/28_mcp_discovery.rb— correct server selected for each query🤖 Generated with Claude Code