PAT-0280 - Density Vacuum
A structural condition where a region expected to contain sufficient nodes, edges, coverage, or relationships falls below declared density thresholds.
Primary Lenses
- LEN-0100 - Absence Lens
Detects structurally required elements that are missing from the observed structure.
- LEN-0140 - Compression Lens
Reduces structural graphs into stable minimal representations for comparison, redundancy detection, and diffing.
Secondary Lenses
- LEN-0160 - Constraint Sufficiency Lens
Evaluates whether declared constraints are sufficient to eliminate structural degrees of freedom.
Primary Issue Matches
- Diagnostic Area Has No Coverage
A known diagnostic area, failure mode, requirement, or review dimension has no Issue, check, rubric item, or workflow coverage.
- Evaluation Rubric Has Coverage Gap
An evaluation rubric, grading standard, or review checklist leaves part of the required evaluation space uncovered.
- Policy Area Has No Examples
A policy, rule, standard, or guidance area has no examples showing how it should apply to real cases.
- Workflow Stage Has Too Few Checks
A workflow stage lacks enough checks, gates, criteria, or review conditions to safely support the work it controls.
Supporting Issue Matches
- Answer Has No Traceable Source Link
The answer makes a claim, recommendation, citation, or factual statement without a source link or trace path that allows the user to verify where it came from.
- Missing Required Fields
The AI returns structured output that omits fields required by the schema, workflow, parser, form, or downstream consumer.
- Review Rubric Missing Required Criteria
A review rubric, grading rule, evaluation checklist, or classification standard lacks criteria required to make the review reliable.
Ontology Metadata
- Code
PAT-0280- Version
PAT-0280@0.1.0- Ontology release
- 0.1.0
- Updated
- 2026-05-10T00:00:00Z
History
-
0.1.0 — 2026-05-10T00:00:00Z — Created
Promoted reviewed Pattern ontology entry: Density Vacuum.
Receipt impact: None