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passepartout/lisp/token-economics.lisp
Amr Gharbeia c227877302 v0.8.3: TUI stabilization — box calls, package fixes, sandbox, configure 
Bug fixes:
- Fix box() calls: set color-pair before box, pass ACS default chtype integers
- Fix markdown functions: move to passepartout.channel-tui package where
  Croatoan is imported; use add-attributes/remove-attributes instead of
  :bold/:underline kwargs to add-string; call theme-color in gate-trace-lines
  to convert theme keys to Croatoan colors
- Fix sandbox: remove dex:get/dex:post from restricted symbols
  (blocked neuro-provider from loading)
- Export *log-lock* from passepartout (was unbound in jailed skill packages)
- Fix configure: always deploy to XDG, skip cp when source==dest
- Fix bash crash handler format string (~~ escaping)
- Revert test reorder in 28 files (caused package leakage in skill loader)

Design cleanup:
- Extract tui-run-screen from tui-main for clean separation
- Remove inject-stimulus alias
- Merge *backend-registry* into *probabilistic-backends*
- Fix read-framed-message whitespace DoS (4096-iteration max)
- Add *read-eval* nil to dispatcher-approvals-process read-from-string
2026-05-13 09:17:48 -04:00

388 lines
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Common Lisp
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(in-package :passepartout)
(defvar *prompt-prefix-cache* (cons nil "")
"Prompt prefix cache: (sxhash . cached-string). Rebuilt when IDENTITY or TOOLS change.")
(defvar *context-cache* (list :foveal-id nil :scope nil :memory-timestamp 0 :rendered ""
:identity-tokens 0 :tool-tokens 0 :context-tokens 0
:log-tokens 0 :config-tokens 0 :time-tokens 0)
"Context assembly cache: metadata + last rendered context string.")
(defun prompt-prefix-cached (assistant-name identity-content feedback mandates-text tool-belt)
"Build the static IDENTITY+TOOLS system prompt prefix.
Uses sxhash on inputs to detect changes; returns cached string on cache hit."
(let* ((hash-key (sxhash (list assistant-name identity-content feedback mandates-text tool-belt)))
(cached-hash (car *prompt-prefix-cache*))
(cached-str (cdr *prompt-prefix-cache*)))
(if (and cached-str (> (length cached-str) 0) (= hash-key cached-hash))
cached-str
(let ((new-prefix (format nil "IDENTITY: ~a~a~a~a~%~%TOOLS:~%~a"
assistant-name identity-content feedback
(if (and mandates-text (> (length mandates-text) 0))
(concatenate 'string (string #\Newline) mandates-text)
"")
tool-belt)))
(setf (car *prompt-prefix-cache*) hash-key
(cdr *prompt-prefix-cache*) new-prefix)
new-prefix))))
(defun context-assemble-cached (context sensor)
"Incrementally assemble awareness context.
Skips assembly for heartbeat/delegation sensors.
Uses cache when foveal, scope, and memory timestamp are unchanged."
(when (member sensor '(:heartbeat :delegation))
(return-from context-assemble-cached nil))
(unless (fboundp 'context-assemble-global-awareness)
(return-from context-assemble-cached "[Awareness skill not loaded]"))
(let* ((foveal-id (getf context :foveal-focus))
(scope (if (and (boundp '*scope-resolver*)
*scope-resolver*)
(funcall *scope-resolver*)
nil))
(mem-ts (hash-table-count *memory-store*))
(cache-foveal (getf *context-cache* :foveal-id))
(cache-scope (getf *context-cache* :scope))
(cache-ts (getf *context-cache* :memory-timestamp))
(cache-rendered (getf *context-cache* :rendered)))
(if (and (equal foveal-id cache-foveal)
(eq scope cache-scope)
(= mem-ts cache-ts)
cache-rendered
(> (length cache-rendered) 0))
cache-rendered
(let ((rendered (funcall (symbol-function 'context-assemble-global-awareness))))
(setf (getf *context-cache* :foveal-id) foveal-id
(getf *context-cache* :scope) scope
(getf *context-cache* :memory-timestamp) mem-ts
(getf *context-cache* :rendered) rendered)
rendered))))
(defun enforce-token-budget (prefix context-text logs-text user-prompt mandates-text
&optional (max-tokens nil))
"Enforce per-call token budget via progressive trimming.
Returns (values prefix context-text logs-text user-prompt mandates-text)
with trimmed sections."
(let ((max (or max-tokens
(ignore-errors
(parse-integer (uiop:getenv "CONTEXT_MAX_TOKENS")))
16384)))
(labels ((ct (s) (if (fboundp 'count-tokens)
(funcall (symbol-function 'count-tokens) s)
(ceiling (length s) 4)))
(total-tokens (p c l u m)
(+ (ct p)
(if c (ct c) 0)
(ct l)
(ct u)
(if m (ct m) 0))))
(let ((total (total-tokens prefix context-text logs-text user-prompt mandates-text)))
(when (> total max)
(log-message "TOKEN BUDGET: ~d tokens exceeds max ~d, trimming..."
total max)
;; L1: truncate logs to last 5 lines
(let* ((log-lines (uiop:split-string logs-text :separator '(#\Newline)))
(trimmed (if (> (length log-lines) 5)
(format nil "~{~a~^~%~}" (last log-lines 5))
logs-text)))
(setf total (total-tokens prefix context-text trimmed user-prompt mandates-text)
logs-text trimmed)
(when (> total max)
;; L2: drop standing mandates
(setf total (total-tokens prefix context-text logs-text user-prompt nil)
mandates-text nil)
(when (> total max)
;; L3: downgrade context to summary
(let ((ctxt-lines (uiop:split-string (or context-text "") :separator '(#\Newline))))
(setf context-text
(format nil "[Context trimmed: ~d items]" (length ctxt-lines)))))))))
(values prefix context-text logs-text user-prompt mandates-text))))
(defun token-economics-initialize ()
"Zero cache state at daemon boot."
(setf (car *prompt-prefix-cache*) nil
(cdr *prompt-prefix-cache*) ""
(getf *context-cache* :foveal-id) nil
(getf *context-cache* :scope) nil
(getf *context-cache* :memory-timestamp) 0
(getf *context-cache* :rendered) ""))
(defun context-usage-percentage ()
"Returns integer 0-100: current token budget consumption.
Returns nil when no context cache data is available."
(let* ((limit (or (ignore-errors
(parse-integer (uiop:getenv "CONTEXT_MAX_TOKENS")))
16384))
(tokens (+ (or (getf *context-cache* :identity-tokens) 0)
(or (getf *context-cache* :tool-tokens) 0)
(or (getf *context-cache* :context-tokens) 0)
(or (getf *context-cache* :log-tokens) 0)
(or (getf *context-cache* :config-tokens) 0)
(or (getf *context-cache* :time-tokens) 0))))
(if (> tokens 0)
(min 100 (floor (* 100 tokens) limit))
nil)))
(eval-when (:compile-toplevel :load-toplevel :execute)
(ql:quickload :fiveam :silent t))
(defpackage :passepartout-token-economics-tests
(:use :cl :fiveam :passepartout)
(:export #:token-economics-suite))
(in-package :passepartout-token-economics-tests)
(def-suite token-economics-suite
:description "Prompt prefix caching, incremental context, token budget")
(in-suite token-economics-suite)
(test test-prompt-prefix-cached-identity
"Contract 1: prompt-prefix-cached includes identity-content when provided."
(setf (car passepartout::*prompt-prefix-cache*) nil
(cdr passepartout::*prompt-prefix-cache*) "")
(let ((prefix (passepartout::prompt-prefix-cached
"Agent" "### Mode: concise" "" nil "No tools")))
(is (stringp prefix))
(is (search "IDENTITY" prefix))
(is (search "Mode: concise" prefix))
(is (search "TOOLS" prefix))))
(test test-prompt-prefix-cached-builds
"Contract 1: prompt-prefix-cached returns a string containing IDENTITY."
(setf (car passepartout::*prompt-prefix-cache*) nil
(cdr passepartout::*prompt-prefix-cache*) "")
(let ((prefix (passepartout::prompt-prefix-cached "Agent" "" "" nil "No tools")))
(is (stringp prefix))
(is (search "IDENTITY" prefix))
(is (search "TOOLS" prefix))))
(test test-prompt-prefix-cached-hits
"Contract 1: second call with same inputs returns cached result."
(setf (car passepartout::*prompt-prefix-cache*) nil
(cdr passepartout::*prompt-prefix-cache*) "")
(let ((p1 (passepartout::prompt-prefix-cached "Agent" "" "" nil "No tools"))
(p2 (passepartout::prompt-prefix-cached "Agent" "" "" nil "No tools")))
(is (string= p1 p2))))
(test test-prompt-prefix-cached-miss
"Contract 1: different inputs rebuild the cache."
(setf (car passepartout::*prompt-prefix-cache*) nil
(cdr passepartout::*prompt-prefix-cache*) "")
(let ((p1 (passepartout::prompt-prefix-cached "Agent" "" "" nil "No tools"))
(p2 (passepartout::prompt-prefix-cached "Bot" "" "" nil "No tools")))
(is (not (string= p1 p2)))
(is (search "Bot" p2))))
(test test-context-assemble-cached-skips-heartbeat
"Contract 2: heartbeat sensors skip context assembly, return nil."
(let ((result (passepartout::context-assemble-cached
'(:foveal-focus "id1") :heartbeat)))
(is (null result))))
(test test-context-assemble-cached-skips-delegation
"Contract 2: delegation sensors also skip assembly."
(let ((result (passepartout::context-assemble-cached
'(:foveal-focus "id1") :delegation)))
(is (null result))))
(test test-context-assemble-cached-non-skip
"Contract 2: user-input sensors attempt assembly (fails gracefully without awareness)."
(let ((result (passepartout::context-assemble-cached
'(:foveal-focus "id1") :user-input)))
(is (stringp result))
(is (> (length result) 0))))
(test test-enforce-token-budget-passthrough
"Contract 3: under-budget prompts pass through unchanged."
(multiple-value-bind (p c l u m)
(passepartout::enforce-token-budget "hi" "ctxt" "log" "user" nil 100000)
(is (string= "hi" p))
(is (string= "ctxt" c))
(is (string= "log" l))
(is (string= "user" u))
(is (null m))))
(test test-enforce-token-budget-trims
"Contract 3: over-budget prompts get trimmed."
(let ((big-prefix (make-string 20000 :initial-element #\x)))
(multiple-value-bind (p c l u m)
(passepartout::enforce-token-budget big-prefix "ctxt" "logs\nlogs\nlogs\nlogs\nlogs\nlogs\nlogs" "user" nil 10)
(declare (ignore p l u m))
;; The prefix itself exceeds the tiny 10-token budget, so everything gets trimmed
(is (or (stringp c) (null c)))
(is (search "[Context trimmed" (or c ""))))))
(test test-token-economics-initialize
"Contract 4: initialize zeroes all cache state."
(setf (car passepartout::*prompt-prefix-cache*) 12345
(cdr passepartout::*prompt-prefix-cache*) "stale")
(setf (getf passepartout::*context-cache* :rendered) "stale context")
(passepartout::token-economics-initialize)
(is (null (car passepartout::*prompt-prefix-cache*)))
(is (string= "" (cdr passepartout::*prompt-prefix-cache*)))
(is (string= "" (getf passepartout::*context-cache* :rendered))))
#+end_src* v0.8.0 Tests — Context Usage
#+begin_src lisp
(in-package :passepartout-token-economics-tests)
(test test-context-usage-percentage
"Contract 5: context-usage-percentage returns integer 0-100."
;; Set up a cache with known token counts
(let* ((ctx passepartout::*context-cache*)
(limit (or (ignore-errors (parse-integer (uiop:getenv "CONTEXT_MAX_TOKENS")))
16384)))
(setf (getf ctx :identity-tokens) 1000
(getf ctx :tool-tokens) 500
(getf ctx :context-tokens) 2000
(getf ctx :log-tokens) 800
(getf ctx :config-tokens) 200
(getf ctx :time-tokens) 100)
(let ((pct (passepartout::context-usage-percentage)))
(is (integerp pct))
(is (<= 0 pct 100)))))
(test test-context-usage-percentage-empty-cache
"Contract 5: context-usage-percentage returns nil with no cache data."
(let ((saved-ctx (copy-list passepartout::*context-cache*)))
(unwind-protect
(progn
(setf (getf passepartout::*context-cache* :identity-tokens) nil
(getf passepartout::*context-cache* :tool-tokens) nil
(getf passepartout::*context-cache* :context-tokens) nil
(getf passepartout::*context-cache* :log-tokens) nil
(getf passepartout::*context-cache* :config-tokens) nil
(getf passepartout::*context-cache* :time-tokens) nil)
(is (null (passepartout::context-usage-percentage))))
(setf passepartout::*context-cache* saved-ctx))))
(eval-when (:compile-toplevel :load-toplevel :execute)
(ql:quickload :fiveam :silent t))
(defpackage :passepartout-token-economics-tests
(:use :cl :fiveam :passepartout)
(:export #:token-economics-suite))
(in-package :passepartout-token-economics-tests)
(def-suite token-economics-suite
:description "Prompt prefix caching, incremental context, token budget")
(in-suite token-economics-suite)
(test test-prompt-prefix-cached-identity
"Contract 1: prompt-prefix-cached includes identity-content when provided."
(setf (car passepartout::*prompt-prefix-cache*) nil
(cdr passepartout::*prompt-prefix-cache*) "")
(let ((prefix (passepartout::prompt-prefix-cached
"Agent" "### Mode: concise" "" nil "No tools")))
(is (stringp prefix))
(is (search "IDENTITY" prefix))
(is (search "Mode: concise" prefix))
(is (search "TOOLS" prefix))))
(test test-prompt-prefix-cached-builds
"Contract 1: prompt-prefix-cached returns a string containing IDENTITY."
(setf (car passepartout::*prompt-prefix-cache*) nil
(cdr passepartout::*prompt-prefix-cache*) "")
(let ((prefix (passepartout::prompt-prefix-cached "Agent" "" "" nil "No tools")))
(is (stringp prefix))
(is (search "IDENTITY" prefix))
(is (search "TOOLS" prefix))))
(test test-prompt-prefix-cached-hits
"Contract 1: second call with same inputs returns cached result."
(setf (car passepartout::*prompt-prefix-cache*) nil
(cdr passepartout::*prompt-prefix-cache*) "")
(let ((p1 (passepartout::prompt-prefix-cached "Agent" "" "" nil "No tools"))
(p2 (passepartout::prompt-prefix-cached "Agent" "" "" nil "No tools")))
(is (string= p1 p2))))
(test test-prompt-prefix-cached-miss
"Contract 1: different inputs rebuild the cache."
(setf (car passepartout::*prompt-prefix-cache*) nil
(cdr passepartout::*prompt-prefix-cache*) "")
(let ((p1 (passepartout::prompt-prefix-cached "Agent" "" "" nil "No tools"))
(p2 (passepartout::prompt-prefix-cached "Bot" "" "" nil "No tools")))
(is (not (string= p1 p2)))
(is (search "Bot" p2))))
(test test-context-assemble-cached-skips-heartbeat
"Contract 2: heartbeat sensors skip context assembly, return nil."
(let ((result (passepartout::context-assemble-cached
'(:foveal-focus "id1") :heartbeat)))
(is (null result))))
(test test-context-assemble-cached-skips-delegation
"Contract 2: delegation sensors also skip assembly."
(let ((result (passepartout::context-assemble-cached
'(:foveal-focus "id1") :delegation)))
(is (null result))))
(test test-context-assemble-cached-non-skip
"Contract 2: user-input sensors attempt assembly (fails gracefully without awareness)."
(let ((result (passepartout::context-assemble-cached
'(:foveal-focus "id1") :user-input)))
(is (stringp result))
(is (> (length result) 0))))
(test test-enforce-token-budget-passthrough
"Contract 3: under-budget prompts pass through unchanged."
(multiple-value-bind (p c l u m)
(passepartout::enforce-token-budget "hi" "ctxt" "log" "user" nil 100000)
(is (string= "hi" p))
(is (string= "ctxt" c))
(is (string= "log" l))
(is (string= "user" u))
(is (null m))))
(test test-enforce-token-budget-trims
"Contract 3: over-budget prompts get trimmed."
(let ((big-prefix (make-string 20000 :initial-element #\x)))
(multiple-value-bind (p c l u m)
(passepartout::enforce-token-budget big-prefix "ctxt" "logs\nlogs\nlogs\nlogs\nlogs\nlogs\nlogs" "user" nil 10)
(declare (ignore p l u m))
;; The prefix itself exceeds the tiny 10-token budget, so everything gets trimmed
(is (or (stringp c) (null c)))
(is (search "[Context trimmed" (or c ""))))))
(test test-token-economics-initialize
"Contract 4: initialize zeroes all cache state."
(setf (car passepartout::*prompt-prefix-cache*) 12345
(cdr passepartout::*prompt-prefix-cache*) "stale")
(setf (getf passepartout::*context-cache* :rendered) "stale context")
(passepartout::token-economics-initialize)
(is (null (car passepartout::*prompt-prefix-cache*)))
(is (string= "" (cdr passepartout::*prompt-prefix-cache*)))
(is (string= "" (getf passepartout::*context-cache* :rendered))))
#+end_src* v0.8.0 Tests — Context Usage
#+begin_src lisp
(in-package :passepartout-token-economics-tests)
(test test-context-usage-percentage
"Contract 5: context-usage-percentage returns integer 0-100."
;; Set up a cache with known token counts
(let* ((ctx passepartout::*context-cache*)
(limit (or (ignore-errors (parse-integer (uiop:getenv "CONTEXT_MAX_TOKENS")))
16384)))
(setf (getf ctx :identity-tokens) 1000
(getf ctx :tool-tokens) 500
(getf ctx :context-tokens) 2000
(getf ctx :log-tokens) 800
(getf ctx :config-tokens) 200
(getf ctx :time-tokens) 100)
(let ((pct (passepartout::context-usage-percentage)))
(is (integerp pct))
(is (<= 0 pct 100)))))
(test test-context-usage-percentage-empty-cache
"Contract 5: context-usage-percentage returns nil with no cache data."
(let ((saved-ctx (copy-list passepartout::*context-cache*)))
(unwind-protect
(progn
(setf (getf passepartout::*context-cache* :identity-tokens) nil
(getf passepartout::*context-cache* :tool-tokens) nil
(getf passepartout::*context-cache* :context-tokens) nil
(getf passepartout::*context-cache* :log-tokens) nil
(getf passepartout::*context-cache* :config-tokens) nil
(getf passepartout::*context-cache* :time-tokens) nil)
(is (null (passepartout::context-usage-percentage))))
(setf passepartout::*context-cache* saved-ctx))))
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