Glossary

• Chunk: a stable line range with an id, path, symbol, kind, language, and token count.
• Partition: a directory, module, or service node in the coverage tree.
• Segment: one fresh model session that reads a set of chunks or writes a synthesis.
• Read segment: a segment that returns chunk bodies.
• Synthesis segment: a segment that updates the map and findings without new chunk bodies.
• Ledger: the SQLite database with files, chunks, partitions, coverage, findings, reads, plans, and segments.
• Coverage: the share of first-party chunks that are read or skipped with a reason.
• Scope: the policy that decides which files are first-party.
• Stale: a chunk or finding whose source changed after it was read.
• Full read: a first pass that covers every first-party chunk.
• Delta: the changed part of the index after a refresh.
• Carry budget: the context reserved for the map, findings, and checkpoint across a segment reset.
• Guard: the policy that blocks raw content reads of indexed first-party files.
• Workspace: a virtual repository whose children are repositories.
• Label: a deterministic one-line description used for retrieval.
• FTS: SQLite full-text search over labels, paths, and symbols.