PAT-0210 - Non-Deterministic Execution

A structural condition where equivalent inputs and declared constraints produce divergent outputs across executions.

Primary Lenses

LEN-0180 - Determinism Lens
Evaluates whether identical structural inputs produce equivalent structural outputs across repeated executions.
LEN-0290 - Variance / Entropy Lens
Measures structural variability across repeated or comparable evaluations and identifies divergence beyond expected bounds.

LEN-0170 - Convergence Lens
Compares parallel structural systems to determine whether they align under shared authority.
LEN-0280 - Reference Stability Lens
Evaluates whether structural references, identifiers, nodes, and edges remain consistent across execution cycles or comparable states.

Prompt Only Works After Retry
The prompt fails, misroutes, or produces an unusable response on one attempt but works after retry without a meaningful change to the input.
Similar Cases Route to Different Outcomes
Similar inputs, cases, prompts, or workflow states are routed to different outcomes without a declared difference that explains the split.
Validation Result Changes on Retry
A validation, grading, review, classification, or pass/fail result changes after retry even though the input and declared validation rules did not change.

Results Vary Too Much
Repeated or comparable runs produce outputs that vary more than the task, workflow, or user can tolerate.
Same Instructions Allow Different Outputs
The same instructions are broad or underspecified enough to allow materially different outputs that all appear compliant.

0.1.0 — 2026-05-10T00:00:00Z — Created

Promoted reviewed Pattern ontology entry: Non-Deterministic Execution.

Receipt impact: None