; SPDX-License-Identifier: PMPL-1.0-or-later
; Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>

; Component Readiness Grades (CRG) — Machine-readable specification
; Format: A2ML (AI-to-Machine Language)
; Standard: CRG v1.0

(standard
  (name "Component Readiness Grades")
  (abbreviation "CRG")
  (version "1.0")
  (date "2026-02-28")
  (author "Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>")
  (license "PMPL-1.0-or-later")
  (family "RSR"))

(grades
  (grade
    (code X)
    (name "Untested")
    (release-stage #f)
    (ordinal 0)
    (description "No testing has been performed. Status unknown.")
    (evidence-required "none")
    (minimum-for #f))
  (grade
    (code F)
    (name "Harmful / Wasteful")
    (release-stage #f)
    (ordinal 1)
    (description "Actively harmful, wasteful, or better handled externally. Reject, deprecate, or delegate.")
    (evidence-required "documented test results showing harm, waste, or redundancy; comparison with alternatives")
    (minimum-for #f))
  (grade
    (code E)
    (name "Minimal / Salvageable")
    (release-stage "pre-alpha")
    (ordinal 2)
    (description "Does something slight. Barely functional. Needs redesign or major work.")
    (evidence-required "at least one successful test case; documented failures and limitations")
    (minimum-for #f))
  (grade
    (code D)
    (name "Partial / Inconsistent")
    (release-stage "alpha")
    (ordinal 3)
    (description "Works on some things but not systematically.")
    (evidence-required "matrix of tested scenarios; documented scope vs actual capabilities")
    (minimum-for "alpha"))
  (grade
    (code C)
    (name "Self-Validated")
    (release-stage "beta")
    (ordinal 4)
    (description "Tested on the tool/project itself (dogfooding). Reliable in home context.")
    (evidence-required "active dogfooding; CI integration or equivalent; no known failures in home context")
    (minimum-for "beta"))
  (grade
    (code B)
    (name "Broadly Validated")
    (release-stage "release-candidate")
    (ordinal 5)
    (description "Tested on at least 6 disparate, unrelated targets.")
    (evidence-required "list of 6+ diverse targets with test results; evidence of feedback incorporation")
    (minimum-for "release-candidate"))
  (grade
    (code A)
    (name "Field-Proven")
    (release-stage "stable")
    (ordinal 6)
    (description "Real-world external feedback confirms value. Does no harm in the wild.")
    (evidence-required "real-world usage data; feedback incorporation evidence; no unresolved harm reports")
    (minimum-for "stable")))

(transitions
  (promotion
    (from X) (to E) (requirement "Run at least one test. Document results."))
  (promotion
    (from X) (to F) (requirement "Evaluate and determine harmful or wasteful."))
  (promotion
    (from E) (to D) (requirement "Fix critical failures. Document scope."))
  (promotion
    (from D) (to C) (requirement "Dogfood on own project. Fix what breaks."))
  (promotion
    (from C) (to B) (requirement "Test on 6+ diverse external targets. Fix what breaks."))
  (promotion
    (from B) (to A) (requirement "Ship. Collect external feedback. Demonstrate no harm."))
  (demotion
    (from A) (to B) (trigger "External feedback dries up or reveals no longer useful."))
  (demotion
    (from A) (to F) (trigger "External feedback reveals component causes harm."))
  (demotion
    (from B) (to C) (trigger "Broad validation reveals unfixed failures."))
  (demotion
    (from C) (to D) (trigger "Home context changes and component no longer reliable."))
  (demotion
    (from C) (to F) (trigger "Dogfooding reveals net negative."))
  (demotion
    (from D) (to E) (trigger "Scope narrows to barely functional."))
  (demotion
    (from any) (to F) (trigger "Better external alternative makes this pure opportunity cost.")))

(conformance
  (rule "Each assessable component MUST have a grade from {X, F, E, D, C, B, A}.")
  (rule "Each grade above X MUST be supported by evidence per section 4.")
  (rule "Assessments MUST be recorded in a version-controlled location.")
  (rule "Assessments MUST be reviewed at least once per release cycle.")
  (rule "Release stages MUST respect minimum grade thresholds."))
