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Complete skill folder anatomy across all cybersecurity skills: - scripts/agent.py: 80-150 line Python agents using real libraries (impacket, boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.) - references/api-reference.md: real API documentation with method signatures - LICENSE: MIT license for all skill folders
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API Reference: Implementing Alert Fatigue Reduction
Libraries
splunk-sdk (Splunk SDK for Python)
- Install:
pip install splunk-sdk - Docs: https://dev.splunk.com/enterprise/docs/devtools/python/sdk-python/
splunklib.client.connect(host, port, username, password)-- Connect to Splunkservice.jobs.create(query)-- Execute a search queryjob.is_done()-- Check if search job completedjob.results(output_mode="json")-- Retrieve results in JSON formatsplunklib.results.JSONResultsReader(stream)-- Parse JSON results
Splunk ES Notable Events API
- Endpoint:
/services/notable_update - Methods: POST to update notable event status
- Fields:
status,urgency,owner,comment,ruleUIDs - Status values:
0(Unassigned),1(New),2(In Progress),5(Resolved)
Key SPL Queries
| Purpose | Key Functions |
|---|---|
| Alert volume analysis | stats count by rule_name, eval fp_rate |
| Risk-based alerting | collect index=risk, eval risk_score |
| Alert consolidation | dedup src, rule_name span=300 |
| Capacity calculation | bin _time span=1d, stats avg(daily_alerts) |
| Tiered routing | eval routing = case(urgency, ...) |
Risk-Based Alerting (RBA) Framework
- Risk contributions replace individual alerts
index=riskstores cumulative risk scores per entity- Threshold alert fires only when
total_risk >= 75 - Typical risk score ranges: 5 (low) to 50 (critical)
Metrics Targets
| Metric | Target |
|---|---|
| False Positive Rate | < 30% per production rule |
| Alerts/Analyst/Shift | 40-60 (manageable range) |
| Signal-to-Noise Ratio | > 1.0 |
| MTTD | Under 15 minutes for critical |
| MTTR | Under 4 hours for high severity |
External References
- Splunk ES RBA Docs: https://docs.splunk.com/Documentation/ES/latest/Admin/RBA
- Splunk SDK Python: https://github.com/splunk/splunk-sdk-python
- MITRE ATT&CK Detection: https://attack.mitre.org/resources/