[Agent Builder] Add detection engineering prebuilt skill with tools#258362
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patrykkopycinski wants to merge 2 commits intoelastic:mainfrom
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[Agent Builder] Add detection engineering prebuilt skill with tools#258362patrykkopycinski wants to merge 2 commits intoelastic:mainfrom
patrykkopycinski wants to merge 2 commits intoelastic:mainfrom
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Adds a comprehensive detection engineering skill for Agent Builder that covers the full detection lifecycle: threat analysis, rule creation, MITRE ATT&CK coverage assessment, rule testing, tuning, monitoring, prebuilt rule onboarding, and exception management. New registry tools: - security.find_rules — search and filter detection rules - security.manage_rules — bulk enable/disable/duplicate rules - security.preview_rule — test rule queries against live data - security.manage_exceptions — find, prepare, and overlap-check exceptions - security.coverage_overview — analyze MITRE ATT&CK coverage - security.rule_monitoring — check rule execution health The skill includes 9 end-to-end workflow definitions covering scenarios from new data source onboarding to SOC analyst bulk false positive fixes, plus reference content for rule type selection and MITRE ATT&CK mapping. All tools are gated behind the aiRuleCreationEnabled experimental flag. 145 unit tests covering schema validation, availability, and handlers.
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…add eval suite - Refactor 6 detection engineering tools from globally-registered BuiltinToolDefinition to skill-scoped BuiltinSkillBoundedTool (inline tools), preventing global tool library pollution when the skill is not active - Update skill definition to accept core/logger dependencies and expose tools via getInlineTools instead of getRegistryTools - Create @kbn/evals-suite-security-detection-engineering evaluation suite with: - Skill selection dataset (6 examples across all tool types) - Tool invocation dataset (5 examples validating parameter accuracy) - Workflow quality dataset (4 multi-step e2e scenarios) - Criteria + ToolCalls + Correctness + Groundedness evaluators
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Summary
Adds a comprehensive detection engineering prebuilt skill for Agent Builder that covers the full detection lifecycle from threat analysis to production deployment and ongoing monitoring.
New registry tools (6)
security.find_rules— Search and filter detection rules by name, type, tags, enabled status, prebuilt/customsecurity.manage_rules— Bulk enable, disable, or duplicate rulessecurity.preview_rule— Test rule queries (ES|QL, EQL, KQL, threshold) against live data without creating a rulesecurity.manage_exceptions— Find existing exceptions, detect overlapping conditions, prepare new exception definitionssecurity.coverage_overview— Analyze MITRE ATT&CK coverage across all rules, identify gaps and unmapped rulessecurity.rule_monitoring— Check rule execution health: errors, performance metrics, alert generation ratesSkill content
security.alerts,security.create_detection_rule,security.security_labs_search,platform.core.cases,platform.core.execute_esql,platform.core.generate_esqlAll tools gated behind
aiRuleCreationEnabledexperimental feature flag.Files changed
skills/detection_engineering/index.ts,content.tsfind_rules_tool.ts,manage_rules_tool.ts,preview_rule_tool.ts,manage_exceptions_tool.ts,coverage_overview_tool.ts,rule_monitoring_tool.tsregister_skills.ts,register_tools.ts,tools/index.tsTest plan
yarn test:type_check --project)Made with Cursor