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# File 'lib/profiler/mcp/tools/explain_query.rb', line 9
def self.call(params)
token = params["token"]
query_index = params["query_index"]
unless token
return [{ type: "text", text: "Error: token parameter is required" }]
end
if query_index.nil?
return [{ type: "text", text: "Error: query_index parameter is required" }]
end
unless Profiler.configuration.enabled
return [{ type: "text", text: "Error: EXPLAIN is only available when the profiler is enabled" }]
end
data = Profiler::ExplainRunner.run(token, query_index.to_i)
lines = []
lines << "# EXPLAIN ANALYZE — Query ##{query_index}"
lines << "Adapter: `#{data[:adapter]}`\n"
if data[:format] == "json"
lines << "```json"
lines << JSON.pretty_generate(data[:result])
lines << "```"
else
lines << "```"
lines << data[:result].to_s
lines << "```"
end
[{ type: "text", text: lines.join("\n") }]
rescue ArgumentError => e
[{ type: "text", text: "Error: #{e.message}" }]
rescue => e
[{ type: "text", text: "EXPLAIN failed: #{e.message}" }]
end
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