Cybersecurity.
Defensive security engineering, threat analysis, incident response, and security assurance. Discover 10 documented skills, read their use cases, and copy a verified installation command.
Threat Model
Map assets, trust boundaries, threats, controls, and residual risk for a bounded system.
View skill and install command ↗02 / cyber-secure-codeSecure Code Review
Review a code change for exploitable input, identity, authorization, secret, and data-flow flaws.
View skill and install command ↗03 / cyber-vulnerability-triageVulnerability Triage
Prioritize a reported vulnerability using affected assets, exploitability, exposure, and impact evidence.
View skill and install command ↗04 / cyber-incident-responseCyber Incident Response
Coordinate defensive incident response with containment, evidence preservation, and recovery gates.
View skill and install command ↗05 / cyber-identity-accessIdentity and Access Review
Review identities and permissions for least privilege, lifecycle, ownership, and audit evidence.
View skill and install command ↗06 / cyber-cloud-reviewCloud Security Review
Assess cloud configuration against an explicit threat model and approved security baseline.
View skill and install command ↗07 / cyber-security-controlsSecurity Control Evidence
Map supplied evidence to security control requirements with traceable, bounded conclusions.
View skill and install command ↗08 / cyber-phishingPhishing Response Triage
Triage a suspected phishing report and provide safe containment and user guidance.
View skill and install command ↗09 / cyber-secret-responseExposed Secret Response
Respond to a potentially exposed credential without echoing or spreading the secret.
View skill and install command ↗10 / cyber-security-test-planAuthorized Security Test Plan
Define a bounded security test plan with written authorization, targets, limits, and stop conditions.
View skill and install command ↗Choose first.
Then install.
Install only the skills relevant to your task and target. GNCore skills guide an AI assistant—they cannot perform work independently.
Read installation details ↗gncore install cyber-threat-model --apps vscode-codex --scope workspace