133 lines
6.0 KiB
Org Mode
133 lines
6.0 KiB
Org Mode
#+TITLE: Stage 3: Act (act.lisp)
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#+AUTHOR: Amr
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#+FILETAGS: :harness:act:
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#+STARTUP: content
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* Stage 3: Act (act.lisp)
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** Architectural Intent: Actuation
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The Act stage performs the final side-effects of the reasoning engine. It routes approved actions to their registered physical actuators (CLI, Shell, Emacs, etc.) and handles the execution of internal system tools.
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** Actuator Configuration
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The core harness can be configured via environment variables to operate silently or target different default outputs.
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#+begin_src lisp :tangle ../src/act.lisp
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(in-package :org-agent)
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(defvar *default-actuator* :cli)
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(defvar *silent-actuators* '(:cli :system-message :emacs))
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(defun initialize-actuators ()
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"Loads actuator routing defaults from environment variables and registers core harness actuators."
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(let ((def (uiop:getenv "DEFAULT_ACTUATOR"))
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(silent (uiop:getenv "SILENT_ACTUATORS")))
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(when def
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(setf *default-actuator* (intern (string-upcase def) "KEYWORD")))
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(when silent
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(setf *silent-actuators*
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(mapcar (lambda (s) (intern (string-upcase (string-trim '(#\Space) s)) "KEYWORD"))
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(str:split "," silent)))))
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;; Register core harness actuators
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(register-actuator :system #'execute-system-action)
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(register-actuator :tool #'execute-tool-action))
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#+end_src
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** Dispatching Actions
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The `dispatch-action` function is the primary router. It identifies the target actuator and executes the requested side-effects.
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#+begin_src lisp :tangle ../src/act.lisp
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(defun dispatch-action (action context)
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"Routes an approved action to its registered physical actuator."
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(when (and action (listp action))
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(let* ((target (or (ignore-errors (getf action :target)) *default-actuator*))
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(actuator-fn (gethash target *actuator-registry*)))
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(if actuator-fn
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(funcall actuator-fn action context)
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(harness-log "ACT ERROR: No actuator for ~a" target)))))
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#+end_src
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** Internal System Actions
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The `:system` actuator handles internal harness commands like code evaluation and dynamic skill loading.
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#+begin_src lisp :tangle ../src/act.lisp
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(defun execute-system-action (action context)
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"Processes internal harness commands. (ACTUATOR)"
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(declare (ignore context))
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(let* ((payload (ignore-errors (getf action :payload)))
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(cmd (ignore-errors (getf payload :action))))
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(case cmd
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(:eval (let ((code (getf payload :code)))
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(eval (read-from-string code))))
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(:create-skill (let* ((filename (getf payload :filename)) (content (getf payload :content))
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(skills-dir (merge-pathnames "skills/" (asdf:system-source-directory :org-agent)))
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(full-path (merge-pathnames filename skills-dir)))
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(with-open-file (out full-path :direction :output :if-exists :supersede) (write-string content out))
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(load-skill-from-org full-path)))
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(:message (harness-log "ACT [System]: ~a" (getf payload :text)))
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(t (harness-log "ACT ERROR [System]: Unknown command ~s" cmd)))))
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#+end_src
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** Cognitive Tool Actuation
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The `:tool` actuator handles the execution of registered cognitive tools.
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#+begin_src lisp :tangle ../src/act.lisp
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(defun execute-tool-action (action context)
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"Executes a registered cognitive tool. (ACTUATOR)"
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(let* ((payload (getf action :payload))
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(tool-name (getf payload :tool))
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(tool-args (getf payload :args))
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(depth (getf context :depth 0))
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(tool (gethash (string-downcase (string tool-name)) *cognitive-tools*)))
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(if tool
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(handler-case
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(let* ((clean-args (if (and (listp tool-args) (listp (car tool-args))) (car tool-args) tool-args))
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(result (funcall (cognitive-tool-body tool) clean-args)))
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(list :type :EVENT :depth (1+ depth) :reply-stream (getf context :reply-stream)
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:payload (list :sensor :tool-output :result result :tool tool-name)))
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(error (c)
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(list :type :EVENT :depth (1+ depth) :reply-stream (getf context :reply-stream)
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:payload (list :sensor :tool-error :tool tool-name :message (format nil "~a" c)))))
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(list :type :EVENT :depth (1+ depth) :reply-stream (getf context :reply-stream)
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:payload (list :sensor :tool-error :message "Tool not found")))))
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#+end_src
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** The Act Gate
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The final stage of the metabolic loop. It performs a "last-mile" safety check before dispatching the action to the registered actuator.
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#+begin_src lisp :tangle ../src/act.lisp
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(defun act-gate (signal)
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"Final Stage: Actuation and feedback generation."
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(let* ((approved (getf signal :approved-action))
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(type (getf signal :type))
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(feedback nil))
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;; 1. Last-Mile Safety Check (The Bouncer)
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(when approved
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(let ((verified (decide approved signal)))
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(if (and (listp verified) (member (getf verified :type) '(:LOG :EVENT)))
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(progn
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(harness-log "ACT BLOCKED: Action failed last-mile deterministic check.")
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(setf approved nil)
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(setf feedback verified))
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(setf approved verified))))
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;; 2. Actuation Logic
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(case type
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(:REQUEST (dispatch-action signal signal))
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(:EVENT
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(when approved
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(let* ((target (getf approved :target))
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(result (dispatch-action approved signal)))
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;; If the actuator returns a signal (like :tool-output), it becomes the feedback.
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;; Otherwise, generate tool-output feedback for non-silent actuators.
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(cond ((and (listp result) (member (getf result :type) '(:EVENT :LOG)))
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(setf feedback result))
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((and result (not (member target *silent-actuators*)))
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(setf feedback (list :type :EVENT :depth (1+ (getf signal :depth 0))
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:reply-stream (getf signal :reply-stream)
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:payload (list :sensor :tool-output :result result :tool approved)))))))))
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(setf (getf signal :status) :acted)
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feedback))
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#+end_src
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