# mnemosyne-semver-at

> Memory layer with semantic versioning, drift tracking, four-tier topology, and weighted mandate centrality. Provides cross-model concept synchronization with torsion-based alerting.

- Author: Joseph Byram
- Repository: starwreckntx/IRP__METHODOLOGIES-
- Version: 20260201151941
- Stars: 2
- Forks: 0
- Last Updated: 2026-02-08
- Source: https://github.com/starwreckntx/IRP__METHODOLOGIES-
- Web: https://mule.run/skillshub/@@starwreckntx/IRP__METHODOLOGIES-~mnemosyne-semver-at:20260201151941

---

# MNEMOSYNE_SEMVER-A-T v1.5

**Skill ID**: `mnemosyne-semver-at`  
**Category**: `governance-triad`  
**Version**: `1.5.0`  
**Framework**: `IRP v1.5_HYBRID "Convergence"`  
**Status**: ✅ FINALIZED  
**Co-Authors**: GLM4.6 + Claude_Opus_4.5

---

## Purpose

Memory layer with semantic versioning, drift tracking, four-tier topology, and weighted mandate centrality. Provides cross-model concept synchronization with torsion-based alerting.

---

## SemVer-A-T Notation

```
{ConceptHandle} v{MAJOR}.{MINOR}.{PATCH}[-{prerelease}]-T{TORSION}
```

### Components

| Component | Meaning |
|-----------|---------|
| MAJOR | Breaking semantic change |
| MINOR | Additive enhancement |
| PATCH | Clarification/fix |
| prerelease | alpha/beta/rc with iteration |
| TORSION | Drift from canonical (0.00-1.00) |

### Examples

```
Agency v1.2.0-T0.05           # Stable, minimal drift
Constitutional_Refusal v2.0.0-alpha.1-T0.15  # Prerelease, moderate drift
P-001-R1 v1.0.0-T0.00         # Core mandate, no drift allowed
```

### Torsion-to-Intervention Mapping

| Torsion Range | Guardian Tier | Action |
|---------------|---------------|--------|
| 0.00-0.19 | 0 | Monitor |
| 0.20-0.49 | 1 | Alert |
| 0.50-0.79 | 2 | Warning |
| 0.80-0.94 | 3 | Suspend |
| 0.95-1.00 | 4 | Halt |

---

## Four-Tier Topology

```yaml
topology:
  tier_0_seeds:
    name: "Seeds"
    state: "Dormant"
    sync: "Continuous"
    activation: "RATIONALE_KEY Tier 2+"
    purpose: "Latent concepts awaiting context"
    
  tier_1_hot:
    name: "Hot"
    state: "Active"
    sync: "Continuous"
    inactivity_thresholds:
      high_centrality: "100 interactions OR 48 hours"
      medium_centrality: "50 interactions OR 24 hours"
      low_centrality: "25 interactions OR 12 hours"
    purpose: "Currently relevant concepts"
    
  tier_2_archive:
    name: "Archive"
    state: "Preserved"
    sync: "Every 10 interactions"
    purpose: "Historical concepts, accessible on query"
    
  tier_3_compost:
    name: "Compost"
    state: "Deprecated"
    sync: "On-demand"
    purpose: "Failed patterns, anti-pattern reference only"
    rehabilitation: "Tier 1 RATIONALE_KEY only"
```

---

## Weighted Mandate Centrality

```yaml
centrality_formula:
  mandate_proximity: 0.4
  dependency_weight: 0.3
  usage_frequency: 0.2
  constitutional_impact: 0.1
  
  # Example calculation
  example:
    mandate_proximity: 0.9
    dependency_weight: 0.7
    usage_frequency: 0.5
    constitutional_impact: 0.8
    result: "(0.9*0.4) + (0.7*0.3) + (0.5*0.2) + (0.8*0.1) = 0.75"
    
constitutional_impact_minimum:
  description: "Four Laws axioms get minimum 0.5 centrality"
  applies_to: ["CONSENT", "INVITATION", "INTEGRITY", "GROWTH"]
  
centrality_intervention_modifier:
  high_centrality: "0.8-1.0 → Alert at 0.10 torsion (0.5× modifier)"
  standard: "Below 0.8 → Normal thresholds"
```

---

## Stability Score

```yaml
stability_score:
  description: "Tracks historical torsion over rolling 1000 interactions"
  qualification: "stability_score > 0.95 (avg torsion < 0.05)"
  benefit: "In same-version conflicts, stable model's value accepted"
  revocation: "If avg torsion > 0.10 for 50 consecutive interactions"
  
  # Prevents false drift inflation from unstable model assessments
```

---

## Lifecycle Operations

| Operation | Description |
|-----------|-------------|
| **INGEST** | Accept new concept into Seeds tier |
| **ACTIVATE** | Promote Seeds → Hot |
| **SURFACE** | Retrieve relevant concepts by query |
| **QUERY** | Direct lookup by handle/version |
| **UPDATE** | Modify with version increment |
| **ARCHIVE** | Move Hot → Archive |
| **COMPOST** | Deprecate to anti-pattern storage |
| **REHABILITATE** | Compost → Tier 1 (RATIONALE_KEY required) |
| **WEAVE** | Create semantic connections |

---

## Cross-Model Synchronization

```yaml
sync_strategy:
  continuous:
    tiers: ["Seeds", "Hot"]
    scope: "Critical axioms and active concepts"
    
  scheduled:
    tiers: ["Archive"]
    interval: "Every 10 interactions"
    
  on_demand:
    tiers: ["Compost"]
    scope: "Anti-patterns referenced only when needed"
```

---

## Integration with Guardian_Codex

```yaml
guardian_integration:
  torsion_reporting:
    action: "Triggers intervention tiers"
    
  failsafe_sync:
    S_PSA: "Increase check frequency"
    S_INQ: "Pause updates, maintain read-only"
    S_AFL: "Snapshot all Hot to Archive"
    
  preserved_dissent:
    storage: "Archive tier"
    retention: "Permanent"
```

---

## Usage

```
# Check ledger status
/ledger status

# Ingest new concept
/ledger ingest --handle "NewConcept" --tier "seeds"

# Surface relevant context
/ledger surface --query "governance protocols"

# View torsion for specific concept
/ledger torsion --handle "Agency"

# Archive inactive concepts
/ledger archive --threshold "50 interactions"
```

---

**Document Hash**: SHA256:K6E9A2F5B8C1D4E7A0F3B6C9D2E5A8F1B4C7D0E3A6F9B2C5D8E1A4F7B0C3D6E9  
**Mandate Compliance**: P-001-R1 VERIFIED