Module diagnostics 

Pure graph diagnostics over DescribeSnapshot (D39/R-describe).

These helpers are product-surface catch-up with the TypeScript clean-slate graph diagnostics. They never read live nodes or mutate graph state; describe() remains the single topology source of truth.

Structs

CausalChain

CausalChain data container.

CausalStep

CausalStep data container.

DescribeChangeset

DescribeChangeset data container.

ExplainPathOptions

ExplainPathOptions data container.

IslandReport

IslandReport data container.

ProfileSummary

ProfileSummary data container.

ProfileSummaryNode

ProfileSummaryNode data container.

ProfileSummaryOptions

ProfileSummaryOptions data container.

ProfileSummaryStatus

ProfileSummaryStatus data container.

ReachableOptions

ReachableOptions data container.

ReachableResult

ReachableResult data container.

ValidateNoIslandsResult

ValidateNoIslandsResult data container.

Enums

DescribeEvent

DescribeEvent variants.

ExplainPathReason

ExplainPathReason variants.

ReachableDirection

ReachableDirection variants.

Functions

explain_path

Creates or computes explain_path.

profile_summary

Summarize an opt-in D39/R-profile snapshot using describe() for node cardinality.

profile_summary_from_snapshots

Pure profile rollup over an already-captured describe/profile pair.

reachable

Creates or computes reachable.

topology_diff

Pure topology delta from one D39 describe() snapshot to another.

validate_no_islands

Creates or computes validate_no_islands.