detect-coverage-gap

Purpose

Given an explicit matrix, graph, taxonomy, or IP feature space, identify absent, thin, disconnected, or weakly covered regions and explain why they matter.

Input contract

required: [coverage_representation, universe_definition, coverage_evidence]
optional: [gap_priority_rule, taxonomy, graph_statistics, domain_constraints]
constraints: [the representation and eligible universe are explicit; every reported gap points to an absent, thin, disconnected, or weakly covered region]

Procedure

1. Validate the representation and enumerate its eligible regions or nodes.
2. Mark observed coverage and classify absent, thin, disconnected, and weak-link regions.
3. Characterize the consequence and evidence for each gap.
4. Prioritize gaps using the caller-supplied rule and return an actionable gap list.

Output contract

produces: [coverage_gap_list, coverage_map, priority_rationale, evidence_register]
delta_fields: [findings, evidence_updates, decisions, open_questions]

Quality gates

• Declare the eligible universe, numerator, denominator, batch increment, stopping reason, source references, direction, and threshold rationale for relative coverage claims.
• Report coverage ratio whenever a relative coverage claim is made.
• When coverage is evaluated over evidence sources or batches, also report independent-source ratio, marginal information gain, and saturation state.
• The complete orphan list is analyzed where graph mode applies; weak links below <0.3 are retained as source-defined evidence and not silently normalized.
• Matrix white-space detection and graph orphan detection remain distinct representations.

Parameterization

The caller must provide the coverage representation type, eligible universe, observed evidence, region/node schema, thinness or connectivity rule, priority rule, and source references. For graph mode provide node/edge statistics; for IP mode provide the feature taxonomy and claim map.

Failure and counterexamples

Reject when the universe is undefined, a gap is inferred from missing data rather than represented absence, or an orphan/weak-link result lacks a repair rationale.

Provenance map

• resolved: creative-ideation/coverage-gap-detection
• resolved: creative-ideation/white-space-detection
• resolved: knowledge-acquisition/white-space-mapping
• resolved: knowledge-structuring/gap-detection
• resolved: knowledge-structuring/model-gap-detection
• intermediate: Pass3/detect-white-space
• intermediate: Pass3/map-ip-white-space
• intermediate: Pass3/detect-structural-gap

Verbatim source criteria excerpts

• gap-detection line 27: Must analyze the full orphan list and report actionable gap descriptions.
• model-gap-detection line 21: Check for edges with weight < 0.3 - these are weak links needing more evidence.
• model-gap-detection line 27: Must check both orphans and weak links and include actionable suggestions.

Preserved source criteria ledger

source	physical line	kind	source criterion
knowledge-structuring/gap-detection	14	gate	Analyze the complete orphan list and provide executable repair suggestions.
knowledge-structuring/model-gap-detection	14	numeric/gate	Query orphan nodes with degree 0 and weak links <0.3; provide executable gaps and suggestions.