107 lines
4.6 KiB
Org Mode
107 lines
4.6 KiB
Org Mode
#+TITLE: SKILL: Shell Actuator Agent (System Interface)
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#+ID: skill-shell-actuator-agent
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#+STARTUP: content
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* Overview
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The **Shell Actuator Agent** provides the Neurosymbolic Kernel with a bridge to the host operating system. It enables the agent to execute shell commands, such as Git operations, file searches, and system diagnostics, while maintaining a strict security posture through hardcoded whitelisting.
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* The Interface Mandate
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1. **Secure Actuation:** Only commands explicitly listed in the security whitelist are permitted.
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2. **Diagnostic Feedback:** Capture STDOUT, STDERR, and exit codes for every command and inject them back into the cognitive loop as new stimuli.
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3. **Loop Closure:** The actuator must trigger a neural analysis of the command's output, allowing the agent to "see" the results of its actions.
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4. **Resilience:** Handle illegal command attempts by injecting a structured error response instead of allowing the execution.
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* Symbolic Implementation (The Logic)
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The implementation focuses on the secure execution of system calls and the resulting feedback loop.
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** Architectural Intent: Security Whitelisting & Execution
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This section defines the boundary of the agent's system powers. It strictly verifies the executable of every requested command against a whitelist before using the system's `run-program` utility. It ensures that diagnostics are always captured and returned to the core event bus.
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#+begin_src lisp
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;; A strict whitelist of permitted executables
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(defparameter *allowed-commands* '("ls" "git" "rg" "grep" "date" "echo" "cat"))
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(defun execute-shell-safely (action)
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"System 2 strictly verifies the command against the whitelist and captures full diagnostics."
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(let* ((cmd-string (getf (getf action :payload) :cmd))
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(executable (car (uiop:split-string cmd-string :separator '(#\Space)))))
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(if (member executable *allowed-commands* :test #'string=)
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(progn
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(format t "Shell Actuator - Executing '~a'~%" cmd-string)
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(multiple-value-bind (stdout stderr exit-code)
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(uiop:run-program cmd-string
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:output :string
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:error-output :string
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:ignore-error-status t)
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;; Inject structured diagnostics back into the core bus
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(org-agent:inject-stimulus
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`(:type :EVENT
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:payload (:sensor :shell-response
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:cmd ,cmd-string
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:stdout ,(or stdout "")
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:stderr ,(or stderr "")
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:exit-code ,exit-code)))))
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(progn
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(format t "Shell Actuator - BLOCKED illegal command '~a'~%" cmd-string)
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(org-agent:inject-stimulus
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`(:type :EVENT
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:payload (:sensor :shell-response
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:cmd ,cmd-string
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:stdout ""
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:stderr "ERROR - Command not in security whitelist."
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:exit-code 1)))))))
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;; Register the actuator
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(org-agent:register-actuator :shell #'execute-shell-safely)
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#+end_src
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** Architectural Intent: Feedback Perception
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This trigger ensures that the skill is re-engaged the moment a shell command completes, closing the loop between action and perception.
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#+begin_src lisp
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(defun trigger-skill-shell-actuator (context)
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(let ((type (getf context :type))
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(payload (getf context :payload)))
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(and (eq type :EVENT)
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(eq (getf payload :sensor) :shell-response))))
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#+end_src
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** Architectural Intent: Neuro-Cognitive Result Analysis
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When a command completes, the neural layer is tasked with analyzing the diagnostics. It interprets the STDOUT and STDERR to determine if the goal was achieved, providing the user with a human-readable summary.
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#+begin_src lisp
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(defun neuro-skill-shell-actuator (context)
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(let* ((p (getf context :payload))
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(cmd (getf p :cmd))
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(stdout (getf p :stdout))
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(stderr (getf p :stderr))
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(exit-code (getf p :exit-code)))
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(format nil "
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You executed the shell command - '~a'
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EXIT CODE - ~a
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STDOUT:
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---
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~a
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---
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STDERR:
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---
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~a
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---
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Analyze the diagnostics. If there was an error, explain why and suggest a fix.
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Return a Lisp plist - (:target :emacs :action :message :text \"your summary\")
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" cmd exit-code stdout stderr)))
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#+end_src
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* Registration
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#+begin_src lisp
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(defskill :skill-shell-actuator
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:priority 80
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:trigger #'trigger-skill-shell-actuator
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:neuro #'neuro-skill-shell-actuator
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:symbolic (lambda (action context) action)) ; Pass-through, safety handled by actuator fn
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#+end_src
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