Files
passepartout/org/security-policy.org
Amr Gharbeia b9a4318ef8 reorg: tangle to XDG, remove stale lisp files, fix tui input
- Changed all 50 org file :tangle targets from ../lisp/ to
  ~/.local/share/passepartout/lisp/ (XDG data dir)
- Removed 49 generated .lisp files from project lisp/ directory
- Removed tests/system-integration-tests.lisp (generated)
- Removed lisp/*.fasl (compiled, stale)
- Updated core-manifest.org to tangle .asd to XDG root
- Remapped quicklisp symlink: local-projects/passepartout → XDG

TUI fixes in channel-tui-main.org:
- Removed with-raw-terminal (stty raw breaks fd 0 reads in this SBCL)
- Use cat subprocess + pipe for keyboard input (via :input :interactive)
- Blocking read-char on pipe with with-timeout 0.1s for daemon processing
- Key events queued via drain-queue alongside daemon messages
- Full dialog key routing (Escape, Up/Down, Enter, filters, Backspace)
- SIGWINCH resize handling
- Post-handshake backend-size re-query
- Daemon version in status bar (was v0.5.0 hardcoded)
- Handshake version stored in state, no add-msg
- :daemon-version and :size-queried in state plist
- view-status uses draw-rect for background
- Test section gated with #+passepartout-tests
2026-05-14 12:34:06 -04:00

92 lines
3.8 KiB
Org Mode

#+TITLE: SKILL: Policy (org-skill-policy.org)
#+AUTHOR: Agent
#+FILETAGS: :system:policy:constitutional:
#+PROPERTY: header-args:lisp :tangle /home/user/.local/share/passepartout/lisp/security-policy.lisp
* Architectural Intent: The Constitutional Layer
The Policy skill encodes the non-negotiable values of Passepartout. Every action the agent proposes must pass through this gate. If the action lacks justification, it is blocked — not because it's dangerous, but because it's opaque.
This is the "Radical Transparency" invariant in practice. The agent must explain *why* it wants to do something, not just *what* it wants to do. An action with ~:explanation "Because I said so"~ is rejected. An action with ~:explanation "The user asked me to read their TODO list and summarize it"~ passes.
The Policy skill is intentionally simple. It has one job: ensure every action has a meaningful explanation. Other security concerns (secret scanning, path blocking, network exfiltration) are handled by the Dispatcher. The Policy is about values, not threats.
** Contract
1. (policy-compliance-check action context): if ~action~ has an
~:explanation~ string longer than 10 characters, returns the action
unchanged. Otherwise, returns a ~:LOG~ rejection plist with
~:level :warn~.
** Boundaries
- Does NOT check for dangerous content — the Dispatcher does that.
- Does NOT validate explanation quality — only length and presence.
- Does NOT consider ~context~ — implementation ignores it currently.
* Implementation
** Package Context
#+begin_src lisp
(in-package :passepartout)
#+end_src
** Policy Logic (policy-compliance-check)
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun policy-compliance-check (action context)
"Enforces constitutional invariants on proposed actions."
(declare (ignore context))
(let* ((payload (proto-get action :payload))
(explanation (proto-get payload :explanation)))
(if (and explanation (stringp explanation) (> (length explanation) 10))
action
(progn
(log-message "POLICY VIOLATION: Action lacks sufficient explanation.")
(list :type :LOG
:payload (list :level :warn
:text "Action blocked: Missing or insufficient :explanation. Please justify your reasoning."))))))
#+end_src
** Skill Registration
#+begin_src lisp
(defskill :passepartout-security-policy
:priority 500
:trigger (lambda (ctx) (declare (ignore ctx)) t)
:deterministic #'policy-compliance-check)
#+end_src
* Test Suite
#+begin_src lisp
(eval-when (:compile-toplevel :load-toplevel :execute)
(ql:quickload :fiveam :silent t))
(defpackage :passepartout-security-policy-tests
(:use :cl :fiveam :passepartout)
(:export #:policy-suite))
(in-package :passepartout-security-policy-tests)
(def-suite policy-suite :description "Verification of the Constitutional Policy Layer")
(in-suite policy-suite)
(test test-policy-passes-valid-explanation
"Contract 1: action with sufficient explanation passes through unchanged."
(let* ((action '(:type :REQUEST :payload (:action :read :explanation "The user asked me to read the TODO list for today.")))
(result (policy-compliance-check action nil)))
(is (equal action result))))
(test test-policy-rejects-short-explanation
"Contract 1: action with explanation ≤10 characters is rejected with :LOG."
(let* ((action '(:type :REQUEST :payload (:action :read :explanation "hi")))
(result (policy-compliance-check action nil)))
(is (eq :LOG (getf result :type)))
(is (search "blocked" (getf (getf result :payload) :text) :test #'char-equal))))
(test test-policy-rejects-missing-explanation
"Contract 1: action without :explanation is rejected."
(let* ((action '(:type :REQUEST :payload (:action :read)))
(result (policy-compliance-check action nil)))
(is (eq :LOG (getf result :type)))))
#+end_src