What problem does it solve? Security reviews often miss the real attack surface: leaked credentials in git history, vulnerable dependencies, misconfigured CI/CD pipelines, unsigned webhooks, and LLM-specific risks like prompt injection. This Skill runs a structured, multi-phase security audit that produces a prioritized Security Posture Report instead of ad-hoc checklist scanning. ## Core Features & Use Cases - Infrastructure-first audit phases: Covers secrets archaeology in git history, dependency supply chain analysis, CI/CD pipeline security, shadow infrastructure, webhook signature verification, and LLM/AI security checks. - Confidence-gated reporting: Daily mode reports only high-confidence findings (8/10 gate) to eliminate noise, while comprehensive mode lowers the bar (2/10) for monthly deep scans. - Flexible scoping: Run targeted audits with flags like --infra, --code, --skills, --supply-chain, --owasp, --diff, or --scope to focus on specific domains or branch changes only. - Use Case: Before a release, run a full audit to catch an unpinned GitHub Action, a .env file accidentally tracked by git, and a webhook endpoint missing HMAC signature verification — all in one report with severity ratings and remediation plans. ## Quick Start Ask the AI to run a full security audit of this repository using the cso skill and report only high-confidence findings.