Source: governance/visuals/RPAS-TAR-COL-Matrix.md — branch adpa-project-charter, repository mdresch/adpa.

📊 RPAS‑TAR‑COL Collision Matrix

Collision Matrix Overview

This matrix maps the Collision‑Prevention (CP) measures of the TAR‑COL‑001 protocol against the primary failure modes in multi‑agent and multi‑tier environments.

Scenario	Mode	Source	TAR Rule	CP Measure
COL‑OVERWRITE	Physical	Concurrent file edits	T3 (Authority)	CP2 (Execution Lock)
COL‑DEPENDENCY	Mechanical	Missing prerequisites	T5 (Ritual)	CP5 (Topology Check)
COL‑SCOPE	Logical	Ambiguous scope	T4 (Responsibility)	COL-G1 (Task Allocation)
COL‑RACE	Runtime	Shared resource contention	T3 (Authority)	COL-G3 (Pessimistic Lock)
COL‑INTENT	Semantic	Divergent interpretations	T1 (Traceability)	CP4 (DRACO Validation)
COL‑AUTHORITY	Governance	Tier boundary breach	T4 (Responsibility)	CP1 (Tier Prevention)

---

Authority Boundary Diagram (Mermaid)

graph TD
    subgraph "Intelligence Tier (Python)"
        A["RTM Advisor / LLM"] -->|Propose Advisory JSON| B["Research Dashboard"]
    end

    subgraph "Experience Tier (Next.js / Blazor)"
        B -->|Draft Proposal| C["Governor Portal"]
        C -->|Decision Ritual| D["Orchestrator"]
    end

    subgraph "Orchestration Tier (.NET 10)"
        D -->|Execution Ritual| E["Data Ledger"]
        D -->|AEV Gate 4 Attestation| F["CSR Stamping"]
    end

    subgraph "Data Tier (PostgreSQL)"
        E -->|Append-Only| G[("Governance History")]
    end

    style D fill:#f96,stroke:#333,stroke-width:4px
    style G fill:#bbf,stroke:#333,stroke-width:2px

---

Collision Prevention Flow (Multi-Agent)

sequenceDiagram
    participant A1 as Agent 1
    participant TAR as RPAS-TAR Registry
    participant A2 as Agent 2
    participant H as Human Governor

    Note over A1, A2: Multi-Agent Parallel Scoping
    A1->>TAR: PRE-001 Check (Task ID: 101)
    TAR-->>A1: Scope Clear
    A1->>TAR: COL-G3 Claim Scope (Path: /server/...)
    Note right of TAR: Path Locked for Agent 1
    
    A2->>TAR: PRE-001 Check (Task ID: 102)
    A2->>TAR: COL-G3 Request Overlap Scope
    TAR-->>A2: [REJECT] Collision Detected (COL-OVERWRITE)
    
    A2->>H: ESC-MULTI (Escalation)
    H->>A2: Re-assign Scope or Wait

---

Enforcement Guarantees

1. Zero-Mutation Outside Rituals: No component can modify the ledger without a valid DecisionID and AmendmentID.
2. Explicit Authority: The Experience Tier is physically prohibited from executing state changes.
3. Auditability: Every change in the matrix is attributable to a specific CSR epoch and actor.