1. Short Definition

U6 Field Coherence Scaling Rule means that local success does not prove whole-system coherence.

As systems scale, every local gain must be tested against the coherence field of the whole system.

2. Canonical Pattern

O_local↑ does not prove O_global↑

Expanded:

local performance / stability / repair / classification↑
without
whole-field validation
⇒ local success may hide global incoherence

Plain form:

Local success must be field-tested.

3. Mechanic Description

SCALE-069 applies scaling directly to U6, the coherence-field layer.

U6 asks whether the whole system remains coherent across parts, time, meaning, boundaries, repair pathways, and downstream effects.

A lower-layer action may look successful:

• U3 execution improves
• U4 classification appears accurate
• U5 coordination becomes faster
• local repair appears complete
• local stability increases
• local metrics improve
• a subsystem becomes more efficient
• a model performs better on a benchmark
• an institution resolves a case
• a department meets its target

But U6 asks:

Did this preserve or improve whole-system coherence?

This matters because local improvements can produce global harm.

Examples:

• A team meets targets by exhausting another team.
• An AI system improves benchmark scores while reducing auditability.
• A security policy reduces incidents while increasing mistrust.
• An economic unit increases profit while degrading circulation.
• A medical intervention suppresses symptoms while reducing recovery capacity.
• A governance reform improves compliance while reducing legitimacy.
• A platform improves engagement while narrowing attention and meaning.

U6 validation checks whether the local result holds across the whole field.

This includes downstream nodes, recurrence, hidden debt, boundary effects, meaning integrity, auditability, and restoration burden.

4. UTS Variable Mapping

5. Diagnostic Questions

1. What improved locally?
2. Did whole-system coherence improve?
3. Was hidden debt reduced or exported?
4. Did downstream nodes lose slack?
5. Did local repair reduce global recurrence?
6. Did meaning integrity hold across the field?
7. Did the change improve or reduce auditability?
8. Were boundaries strengthened or bypassed?
9. Are local metrics being treated as global proof?
10. Does the system still settle after field-level perturbation?

6. Failure Signatures

1. Local Success, Field Decline

O_local↑ while O_global↓

The local system improves while the whole field weakens.

2. Local Metric Substitution

Φ_local↑ mistaken for O_global↑

A local performance proxy is treated as whole-system coherence.

3. Downstream Burden Export

local improvement + downstream burden↑

The local gain creates hidden debt elsewhere.

4. Field Recurrence

local repair↑ while τ_m_global↑

The global pattern keeps recurring despite local repair.

5. Cross-Scale Audit Failure

Au_local↑ while Au_cross_scale↓

The system can inspect the local change but not its field effects.

7. Related Failure Modes

• local-global divergence
• pseudo-scaling
• local stability export
• hidden debt export
• metric localization
• downstream repair overload
• field incoherence
• silent extraction
• performance-coherence divergence
• pseudo-restoration
• cross-scale audit failure

8. Related Diagnostics

9. Restoration Implications

If SCALE-069 is active, restoration requires whole-field validation.

Required actions:

1. Separate local success from field coherence.
2. Map downstream and cross-scale effects.
3. Identify exported hidden debt.
4. Restore cross-scale auditability.
5. Rebalance burden where local gains externalize cost.
6. Protect downstream slack.
7. Align local metrics with whole-system coherence.
8. Test recurrence at the global level.
9. Validate field-level ring-down.
10. Treat local success as provisional until U6 validation passes.

Core restoration rule:

Local success remains provisional until the field confirms it.

10. Compact Registry Entry

id: SCALE-069
name: "U6 Field Coherence Scaling Rule"
family: "SCALE-L — U-Layer Scaling Mechanics"
type: "whole-system-coherence-scaling-constraint"
status: "draft-ready"
short_definition: "Local success, execution, classification, or coordination must be validated against whole-system coherence before being treated as successful scaling."
canonical_pattern: "O_local↑ does not prove O_global↑"
failure_signature: "local performance/stability/repair/classification↑ without whole-field validation ⇒ local success may hide global incoherence"
primary_variables:
  - O
  - H
  - ε
  - ι
  - Au
  - µᵢ
  - BΣ
  - K
  - R
  - Φ
primary_diagnostics:
  - O_local
  - O_global
  - Φ_local
  - Au_cross_scale
  - H_export
  - downstream_burden
  - K_downstream
  - R_global
  - τ_m_global
  - 𝓓_field
related_failure_modes:
  - local_global_divergence
  - pseudo_scaling
  - local_stability_export
  - hidden_debt_export
  - metric_localization
  - downstream_repair_overload
  - field_incoherence
  - silent_extraction
  - performance_coherence_divergence
restoration_implication: "Validate local success at the field level by auditing downstream effects, hidden debt export, global recurrence, and whole-system ring-down."

11. One-Line Canon

Local success is not scaling success until the whole coherence field confirms it.