Builders turn a source’s (path, bytes) records into graph nodes and edges.
v0.8 ships the fs node builder plus two text builders (parsers):
markdown (edges) and frontmatter (edges + metadata).
Composition: the projection from the raw set of per-graph fragments into a
single composed graph. This is the only module that knows about more than one
graph, and the only place the reserved @ and _ sigils appear.
Graph wiring: build each configured graph independently into its own
bare-path namespace, producing the raw GraphSet (the substrate).
Composition into a single graph is a separate projection (see
crate::compose).
drft impact: list the nodes transitively affected by a change to the seed
nodes, as a flat, instruction-bearing list sorted by review priority. The
ranking metrics (impact_radius, betweenness) are computed inline over the
composed graph — there is no separate analyses layer.
The lockfile: a snapshot of node content hashes and per-node outbound edge
target hashes, keyed by path. Lock is infrastructure, not a graph — the graph
carries current observations only; drft check joins this snapshot to derive
staleness.
Text parsers: the link/metadata extractors the text builders wrap.
markdown extracts body links; frontmatter extracts YAML frontmatter links
and the metadata block.