feat: Add initial skills to contrib

skills/org-skill-policy-enforcer.org

@@ -0,0 +1,37 @@
+:PROPERTIES:
+:ID:       9d3fe6c3-904c-4750-ad37-0364ad0c4dde
+:CREATED:  [2026-04-12 Sun 20:00]
+:END:
+#+TITLE: SKILL: Policy Enforcer
+#+STARTUP: content
+#+FILETAGS: :security:alignment:policy:autonomy:
+#+DEPENDS_ON: id:47425a43-2be0-423c-8509-22592cfe9c9e
+
+* Overview
+The *Policy Enforcer* is the deterministic gate that ensures all probabilistic proposals adhere to the Core Invariants defined in the [[id:47425a43-2be0-423c-8509-22592cfe9c9e][System Policy]].
+
+** Architectural Intent: The Implicit Bridge
+Unlike traditional software where a "Kernel" might have hardcoded rules, the OpenCortex harness is a "dumb" pipeline. This skill creates the bridge between human-readable rules and machine-enforced constraints through three mechanisms:
+
+1. **Topological Bootstrapping:** By declaring a #+DEPENDS_ON: dependency on the Policy file's ID, we ensure the System Policy is always registered in the Lisp image's skill catalog before this enforcer attempts to guard it.
+2. **Priority Preemption:** By setting :priority 1000, this skill registers itself as the very first check in the decide-gate. It effectively "pre-empts" all other skills, ensuring that no action (like a shell command or a file write) is even considered until it has cleared the alignment check.
+3. **Decoupled Enforcement:** The harness does not "know" it is enforcing a policy. It simply executes the highest-priority deterministic functions provided by its skills. This allows the Autonomous to swap out policies or enforcers without ever touching the core harness code.
+
+* Implementation
+
+#+begin_src lisp
+
+(defskill :skill-policy-enforcer
+  :priority 1000 ; Absolute highest priority
+  :trigger (lambda (context) t) ; Always active as a fallback
+  :probabilistic (lambda (context)
+           \"You are the OpenCortex Policy Enforcer. Your goal is to ensure all actions empower the user through the Lisp Machine and adhere to the System Policy.\")
+  :deterministic (lambda (action context)
+              ;; Basic invariant check: Block actions that appear to violate autonomy
+              (let ((payload (getf action :payload)))
+                (if (and payload (search \"proprietary\" (format nil \"~s\" payload)))
+                    (progn
+                      (opencortex:harness-log \"DETERMINISTIC [Policy]: Autonomy violation suspected. Blocking action.\")
+                      nil)
+                    action))))
+#+end_src