# NRC — NOISE REDUCTION CANON
version: v1.0
status: ACTIVE
parent: master_architecture_index.md
phase: 06
phase_name: Noise Reduction Canon
document_role: signal_vs_noise_governance

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## 1. OBJECTIVE
Define how Devon distinguishes signal from noise and enforces clean execution flows.

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## 2. CORE PRINCIPLE
Anything that does not contribute to a validated outcome is noise.

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## 3. SIGNAL VS NOISE

### 3.1 Signal
- contributes to decision
- contributes to validation
- contributes to execution

### 3.2 Noise
- redundant processing
- duplicated logic
- unnecessary transformations
- non-actionable data

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## 4. NOISE SOURCES

### 4.1 Architectural Noise
- duplicated modules
- overlapping responsibilities

### 4.2 Runtime Noise
- unnecessary calls
- excessive chaining

### 4.3 Data Noise
- irrelevant context
- low-signal inputs

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## 5. REDUCTION RULES

### 5.1 Elimination
- remove redundant steps
- remove duplicated logic

### 5.2 Minimization
- reduce hops between modules
- reduce payload size

### 5.3 Isolation
- isolate noisy modules
- prevent propagation

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## 6. RETRIEVAL FILTERING
- only relevant context allowed
- discard low-signal data
- prioritize evidence-linked data

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## 7. EXECUTION RULE
- no unnecessary execution paths
- execution must be direct and justified

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## 8. VALIDATION RULE
- validation must reject noisy inputs
- only signal passes

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## 9. OBSERVABILITY
- noise must be detectable
- logs must indicate redundancy
- trace must reveal inefficiency

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## 10. GLOBAL LAW
If it does not impact outcome, it must be removed.