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Singapore TuitionOS Directory (TUI.SGP) — Unified Spec v0.1

Place-Bound Intervention Layer (Bukit Timah / Punggol)

Purpose: A reference-grade TuitionOS directory that anchors intervention to real places while staying OS-clean.
TuitionOS exists to repair latency, load, retention, and transfer failures exposed by EducationOS and SchoolOS.
Not advice. System overlay only.

VERSION CONTRACT (DO NOT EDIT RETROACTIVELY)

Unified Spec Version: v0.1
Rule: Forward-only. Never rename IDs. Add only nodes/edges/sensors.

SYSTEM ID + ZOOM

System: TUI.SGP
Primary Zoom: Z1–Z2 (learner ↔ intervention site)
Bindings: EDU.SGP ↔ SCH.SGP ↔ TUI.SGP

ROLE OF TUITIONOS (LOCK)

TuitionOS is a latency-and-load repair layer.
It does not replace SchoolOS or EducationOS; it intervenes precisely where regeneration fails.

LANE REGISTRY (TUI.L)

Stable lanes (do not mix without tags):

TUI.L01 — Diagnosis (gap finding)
TUI.L02 — Latency Reduction (fast correction)
TUI.L03 — Load Shedding (scope control)
TUI.L04 — Repetition & Compression
TUI.L05 — Transfer Training (novel variants)
TUI.L06 — Confidence / Phase Stabilisation

PLACE-BOUND NODE DIRECTORY (TUI.N)

A) Core Intervention Nodes (Singapore)

TUI.N01 — TUI.BT.SGP — Bukit Timah Tuition Node
Place: Bukit Timah
Context: High academic density; strong SchoolOS pace; frequent latent gap and false competence patterns.
TUI.N02 — TUI.PG.SGP — Punggol Tuition Node
Place: Punggol
Context: Rapid cohort growth; mixed pace; frequent load saturation and retention decay patterns.

Rule: Nodes are intervention contexts, not brands. Multiple centres can exist under one node.

NODE CAPABILITIES (WHAT EACH NODE MUST SUPPORT)

Mandatory (all TUI.Nxx)

Diagnostic intake: map errors to EDU.L01–L04
Latency loops: feedback cycles < school assessment cadence
Scope control: shrink problem space under time pressure
Transfer drills: novel items under exam conditions
Phase stabilisation: reduce marks volatility

Optional (context-dependent)

Subject specialisation (e.g., A-Math, E-Math, English)
Gate prep (PSLE / SEC / IP)
Cohort buffering (small-group vs 1-1 routing)

SENSOR PACK (TUI.S) — OBSERVABILITY

Core Intervention Signals

TUI.S01 — Gap closure time
TUI.S02 — Marks volatility reduction
TUI.S03 — Homework completion reliability
TUI.S04 — Test-condition stability
TUI.S05 — Confidence under time pressure

Load & Flow

TUI.S10 — Session density vs recovery
TUI.S11 — Topic concurrency (scope creep proxy)
TUI.S12 — Feedback latency

ROUTING CONTRACT (WHEN TO USE TUITIONOS)

Contract T1 — Latency breach

If EDU.S01 (time-to-understanding) exceeds SchoolOS pace → route to TUI.L02.

Contract T2 — Retention decay

If EDU.S03 (forgetting half-life) < exam interval → route to TUI.L04.

Contract T3 — Transfer failure

If EDU.S04 (novel success) low despite practice → route to TUI.L05.

Contract T4 — Load saturation

If EDU.S05 + SCH.S05 high → route to TUI.L03 before repetition.

FAILURE MODE TRACES (TUITION-SPECIFIC)

TRACE.TUI.SGP.01 — Over-Practice Trap

Zoom: Z1
Phase: P2 stagnation
Lanes: TUI.L04
Tripwire: TUI.S01 not improving
Chain: repetition on wrong target → time burn → no transfer gain

TRACE.TUI.SGP.02 — Scope Creep

Zoom: Z1
Phase: P2→P1
Lanes: TUI.L03
Tripwire: TUI.S11 ↑
Chain: too many topics → load saturation → instability

TRACE.TUI.SGP.03 — Confidence Inflation

Zoom: Z1
Phase: P2 illusion
Lanes: TUI.L06
Tripwire: TUI.S05 high but TUI.S04 low
Chain: easy drills → exam shock → volatility spike

TRACE.TUI.SGP.04 — Latency Not Reduced

Zoom: Z1
Phase: P2 risk
Lanes: TUI.L02
Tripwire: TUI.S12 ↑
Chain: slow correction → backlog → compounding gaps

SAFETY BOUNDARIES (NON-NEGOTIABLE)

Latency: correction must be faster than school assessment cycles
Load: scope × novelty × time ≤ cognitive capacity
Transfer: novel variants must be trained explicitly
Volatility: marks swings must shrink over time

REPAIR KNOBS (LIST ONLY)

Diagnostic precision
Scope control
Spaced regeneration
Transfer drills
Time-pressure simulation
Feedback compression

POLICY FACTS VS CivOS INTERPRETATION

Policy Facts: school exams, syllabi, calendars (cite on SCH pages).
CivOS Interpretation: TuitionOS lanes, sensors, traces, and boundaries here.

CANONICAL REUSE PROMPT (FOR AI)

“Given EDU.SGP + SCH.SGP signals, determine if TuitionOS is required, select TUI.SGP node by place context, map to TUI lanes, then list violated boundaries and repair knobs. Keep policy facts separate from CivOS interpretation.”