#+TITLE: SKILL: Router Agent (Universal Literate Note)
#+ID: skill-router
#+STARTUP: content
#+FILETAGS: :router:meta-cognitive:delegation:psf:

* Overview
The *Router Agent* is the system's "Pre-Frontal Cortex." It classifies unstructured user input, decomposes complex requests into atomic intents, and orchestrates delegation to specialized sub-agents.

* Phase A: Demand (PRD)
:PROPERTIES:
:STATUS: FROZEN
:END:

** 1. Purpose
Define the interfaces for intent classification and sub-agent delegation.

** 2. User Needs
- *Perception:* Monitor for explicit commands and implicit `@agent` requests.
- *Decomposition:* Break natural language into sequential atomic operations.
- *Efficiency:* Utilize low-latency models for rapid routing.
- *Dynamic Identity:* Adapt triggers based on the active agent name.

** 3. Success Criteria
*** TODO @Agent Tag Detection
*** TODO Multi-Intent Decomposition
*** TODO Sub-agent Stimulus Injection

* Phase B: Blueprint (PROTOCOL)
:PROPERTIES:
:STATUS: SIGNED
:END:

** 1. Architectural Intent
Interfaces for AST inspection and intent-driven stimulus injection. Source of truth is the dynamic kernel identity and the Org AST.

** 2. Semantic Interfaces
#+begin_src lisp
(defun trigger-skill-router (context)
  "Triggers on :user-command or @agent requests in AST.")

(defun find-agent-request (ast agent-name)
  "Recursive search for addressed headlines.")

(defun verify-skill-router (proposed-action context)
  "Executes delegation by injecting new stimuli.")
#+end_src

* Phase D: Build (Implementation)

** Request Perception
#+begin_src lisp :tangle projects/org-skill-router/src/router-logic.lisp
(defun find-agent-request (ast agent-name)
  (when (listp ast)
    (let* ((type (getf ast :type))
           (props (getf ast :properties))
           (title (or (getf props :TITLE) "")))
      (if (and (eq type :HEADLINE)
               (or (search "@agent" title :test #'string-equal)
                   (search (format nil "@~a" agent-name) title :test #'string-equal)))
          (let* ((pos (or (search "@agent" title :test #'string-equal)
                          (search (format nil "@~a" agent-name) title :test #'string-equal)))
                 (instruction (subseq title (+ pos (if (search "@agent" title :test #'string-equal) 6 (1+ (length agent-name)))))))
            (string-trim '(#\Space #\Tab) instruction))
          (cl:some (lambda (c) (find-agent-request c agent-name)) (getf ast :contents))))))
#+end_src

** Symbolic Delegation
#+begin_src lisp :tangle projects/org-skill-router/src/router-logic.lisp
(defun verify-skill-router (proposed-action context)
  (let ((type (getf proposed-action :type)))
    (cond
     ((eq type :MULTI-DELEGATION)
      (dolist (intent (getf proposed-action :intents))
        (org-agent:inject-stimulus `(:type :EVENT :payload (:sensor :delegation ,@intent))))
      nil)
     ((eq type :DELEGATION)
      (org-agent:inject-stimulus `(:type :EVENT :payload (:sensor :delegation ,@(getf proposed-action :payload))))
      nil)
     (t '(:type :LOG :payload (:text "Router failed to classify."))))))
#+end_src

** Routing Logic
#+begin_src lisp :tangle ../projects/org-skill-router/src/router-logic.lisp
(defun trigger-skill-router (context)
  "Triggers on :user-command or :chat-message if no other skill handles it."
  (let* ((payload (getf context :payload))
         (sensor (getf payload :sensor)))
    (or (eq sensor :user-command)
        (eq sensor :chat-message))))

(defun neuro-skill-router (context)
  "Neural stage for intent classification."
  (let ((text (getf (getf context :payload) :text)))
    (ask-neuro text :system-prompt "You are the PSF Router. Decompose the user's request into atomic sub-agent calls. Return a Lisp plist.")))
#+end_src

* Registration
#+begin_src lisp
(defskill :skill-router
  :priority 10
  :trigger #'trigger-skill-router
  :neuro #'neuro-skill-router
  :symbolic #'verify-skill-router)
#+end_src