feat: 6-phase workflow spine + plan-review pipeline (v3.1.0)

skills/owasp/SKILL.md

@@ -61,6 +61,6 @@ description: >
 
 ## Related Skills
 
-- `authentication` — Secure auth implementation patterns
-- `error-handling` — Preventing information leakage through errors
-- `backend-frameworks` — Framework-specific security middleware
+- `defense-in-depth` — Multi-layer validation so a single-point failure can't cause data corruption
+- `testing` — Security test patterns (input validation, authz boundaries)
+- `devops` — Container and CI hardening

skills/owasp/references/patterns.md

@@ -547,7 +547,5 @@ Run `npm audit --audit-level=high` and `pip-audit --strict` in CI (e.g., GitHub
 
 ## Related Skills
 
-- `authentication` - Authentication and authorization implementation patterns
-- `error-handling` - Secure error handling that avoids leaking sensitive information
 - `docker` — Container security hardening
 - `defense-in-depth` — Multi-layer security validation