feat: add 5 new cybersecurity skills - yara hunting, devsecops scanning, amcache, LOtL, privileged session monitoring

skills/implementing-devsecops-security-scanning/references/api-reference.md

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+# API Reference: DevSecOps Security Scanning
+
+## Semgrep CLI (SAST)
+```bash
+# Scan with auto-detected rules
+semgrep scan --config auto --json /path/to/code
+
+# Scan with specific ruleset
+semgrep scan --config p/owasp-top-ten --json /path/to/code
+
+# Custom rule file
+semgrep scan --config my_rules.yaml --json /path/to/code
+
+# SARIF output for GitHub integration
+semgrep scan --config auto --sarif -o results.sarif /path/to/code
+```
+
+## Trivy CLI (SCA / Container)
+```bash
+# Scan container image
+trivy image --format json --quiet nginx:latest
+
+# Scan filesystem for vulnerabilities
+trivy fs --format json --scanners vuln,secret /path/to/project
+
+# Scan with severity filter
+trivy image --severity CRITICAL,HIGH --format json myapp:latest
+
+# Scan IaC files
+trivy config --format json /path/to/terraform/
+```
+
+## Gitleaks CLI (Secret Detection)
+```bash
+# Detect secrets in git repo
+gitleaks detect --source /path/to/repo --report-format json --report-path report.json
+
+# Scan specific commit range
+gitleaks detect --source . --log-opts="HEAD~10..HEAD" --report-format json
+
+# Protect mode (pre-commit)
+gitleaks protect --staged --report-format json
+```
+
+## CI/CD Pipeline Gate Logic
+| Severity | Exit Code | Action |
+|----------|-----------|--------|
+| CRITICAL | 1 (fail) | Block merge/deploy |
+| HIGH | 1 (fail) | Block merge/deploy |
+| MEDIUM | 0 (warn) | Warning in PR comment |
+| LOW | 0 (pass) | Informational only |
+
+## JSON Output Schema (Semgrep)
+| Field | Description |
+|-------|------------|
+| results[].check_id | Rule identifier |
+| results[].extra.severity | ERROR, WARNING, INFO |
+| results[].path | Affected file path |
+| results[].start.line | Line number |
+| results[].extra.message | Finding description |
+
+## JSON Output Schema (Trivy)
+| Field | Description |
+|-------|------------|
+| Results[].Target | Scanned target name |
+| Results[].Vulnerabilities[].VulnerabilityID | CVE identifier |
+| Results[].Vulnerabilities[].Severity | CRITICAL/HIGH/MEDIUM/LOW |
+| Results[].Vulnerabilities[].FixedVersion | Version with fix |