Orchestration · Software component

Replanning Layer Arbiter

Software componentOrchestrationOrchestration & Toolsarc:ReplanningLayerArbiter

An orchestration component that resolves conflicting outputs of concurrently running replanning layers by precedence, recency and specificity, installing one active plan and retaining others as fallbacks.

Responsibility. Chooses which layer's plan becomes the active plan when layers conflict.

Also known as: Layer coordination protocol, Conflict resolver

Direct neighbourhood (hover for relationship types)

Relationships

is configured by structural

Replanning Precedence Policy Ch5.6

writes dependency

Execution Plan abstract Ch5.6

receives data from dynamic

orchestrates control

Plan Executor Ch5.6

Design guidance

MUST let safety-critical reactive responses override all other layers, and contingencies pre-empt incremental adjustments.
SHOULD let strategic replanning influence future decisions without disrupting in-progress execution.
SHOULD retain superseded plans (e.g., an incremental update) as fallbacks if the selected plan fails.

Classification

Patterns: Precedence hierarchyRecency and specificity arbitration
Quality attributes: Safety (ISO/IEC 25010 | NIST AI RMF: safe)Reliability (ISO/IEC 25010 | NIST AI RMF: valid and reliable)
Risks mitigated: Conflicting decisions across replanning layers

Sources

Ch5.6: T. Nguyen, "A* Search and Replaning," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 5.6. ISBN: 9798244538229.