UK A-Level Physics OS — Almost-Code (v1.1)

SYSTEM: Education OS
SUBJECT MODULE: UK A-Level Physics OS
PLUGS INTO:
  - UK Verification OS: A-Level OS (Module B)
  - UK Subject OS Plug-In Template
ZOOM LINK: Z6 (UK gate) ↔ Z5 (city execution) ↔ Z0 (student execution)
REFERENCE: CivOS (Phase P0–P3)
PRIMARY FUNCTION:
  Convert physical models + quantitative reasoning + data interpretation
  into stable, transferable exam performance under time,
  including unfamiliar contexts and multi-step synthesis.

P3 (A-LEVEL PHYSICS):
  The student can:
    - retrieve core laws/definitions without cues (P-S1)
    - translate worded scenarios into model variables correctly (transfer entry)
    - select the correct model family under mixed questions (method selection)
    - execute maths reliably under time (P-S3/P-S5)
    - interpret graphs/data and uncertainty consistently
    - sustain multi-step reasoning chains (AL-S1)
    - recover from mistakes using a recovery protocol (GR4)

CORE SPINE (A-LEVEL PHYSICS):
  PH-SP1: Units, dimensions, significant figures, standard form
  PH-SP2: Modelling workflow (diagram → variables → equations → solve → check)
  PH-SP3: Mechanics as model families (forces, energy, momentum)
  PH-SP4: Waves + oscillations (representation + relationships)
  PH-SP5: Electricity + circuits (concept + equations + graphs)
  PH-SP6: Fields (gravitational/electric/magnetic) as structure
  PH-SP7: Data, graphs, uncertainty, practical reasoning
  PH-SP8: Multi-topic synthesis + unfamiliar contexts (exam signature)

FAILURE_MODES:
  AP-F01: Model selection failure (chooses wrong law/model family)
  AP-F02: Translation failure (worded scenario → variables wrong) (GF1 coupling)
  AP-F03: Maths fragility under time (algebra/graphs overwhelm execution)
  AP-F04: Chain-break instability (multi-step derivations collapse) (AL-S1)
  AP-F05: Transfer collapse in unfamiliar contexts (GF9)
  AP-F06: Units/dimensions negligence (answers unphysical, not checked)
  AP-F07: Graph/data interpretation instability (slope/area/trends misread)
  AP-F08: Practical/uncertainty reasoning gaps (method logic missing)
  AP-F09: Timed endurance collapse (late-paper error spikes) (AL-S3)
  AP-F10: Late repair trap (GF7)
  AP-F11: Autonomy scheduling collapse (missed weeks → ramp panic)
  AP-F12: Narrative substitution (GF10) (no sensors, no loops)

PHASE SENSORS:
  P-S1 retrieval reliability
  P-S2 error histogram (concept/execution/attention)
  P-S3 time-to-solve distribution
  P-S4 transfer check (new context, same model family)
  P-S5 timed stability variance

A-LEVEL GATE SENSORS:
  AL-S1 chain-length stability
  AL-S2 synthesis transfer score
  AL-S3 endurance stability (late-paper error density vs early)
  AL-S5 repair latency vs exam horizon
  AL-S6 self-scheduling stability

PHYS SUBJECT SENSORS:
  APS-S1: model-family selection accuracy (choose correct model)
  APS-S2: translation accuracy (diagram/variables set correctly)
  APS-S3: units/dimensions check rate (self-check compliance)
  APS-S4: maths execution stability under time (algebra error rate)
  APS-S5: graph/data interpretation stability (slope/area/trend accuracy)
  APS-S6: practical reasoning stability (uncertainty + method logic)

REPAIR LOOPS (A-LEVEL PHYSICS):
GR1 Buffer Build Loop (model spine):
  - lock model families (mechanics/waves/electricity/fields)
  - build modelling workflow as default habit
GR3 Transfer Loop (unfamiliar contexts):
  - same model family across new contexts weekly
  - synthesis sets mixing multiple topics
GR2 Error-Log Loop (closure):
  - classify errors: model selection / translation / maths / units / graph / practical
  - micro-drill the root cause
  - timed retest until repeats collapse
GR4 Time-Pressure Loop (execution stability):
  - timed micro-sets
  - recovery protocol: re-model → re-translate → solve → units check
GR6 Continuity Loop (autonomy stability):
  - weekly minimums + consolidation windows
  - prevent missed-week drift
GR8 Early-Warning Thresholds:
  - trigger repair before exam season
GR11 Pressure-Safety Scheduling (optional):
  - protect recovery capacity to prevent burnout tail (GF12)

EARLY WARNING (A-LEVEL PHYSICS):
  Trigger repair immediately if any are true:
    - APS-S1 model-family selection accuracy low on mixed sets
    - APS-S2 translation errors frequent (wrong variables/diagrams)
    - APS-S4 maths instability under time high
    - APS-S5 graph/data interpretation unstable
    - AL-S2 synthesis transfer below threshold
    - AL-S3 late-paper error density spikes
    - P-S5 volatility high across timed papers
    - AL-S6 self-scheduling variance high

FAILURE TRACE:
  translation failure (AP-F02) →
  wrong model selection (AP-F01) →
  maths fragility under time (AP-F03) →
  transfer collapse in unfamiliar contexts (GF9) →
  endurance collapse (AL-S3) →
  late repair trap (GF7) →
  A-Level gate failure
REPAIR TRACE:
  GR1 model family spine + modelling workflow →
  GR3 unfamiliar context audits →
  GR2 closure of repeat errors (model/translation/maths/graph) →
  GR4 timed stability + recovery protocol + units checks →
  GR6 continuity + (GR11 pressure safety) →
  P3 reliability across full papers

PROOF OF STABILITY (P3):
  - APS-S1 model selection accuracy high on mixed papers
  - APS-S2 translation accuracy high (variables set correctly)
  - APS-S3 units/dimensions check compliance high
  - APS-S4 maths error rate low under time
  - APS-S5 graph/data interpretation stable across variants
  - AL-S3 late-paper error density does not spike
  - P-S5 volatility low across 3 full timed papers

PORTS:
  - UK Verification OS: A-Level OS (Module B)
  - UK GCSE OS (prerequisite mapping)
  - UK Subject OS Plug-in Template
  - London City Education OS (Z5)
  - W4 GF Library
  - W5 GR Library