Claude Code stores sessions under `~/.claude/projects/<slug>/<id>.jsonl`
where `<slug>` is the original CWD with `/` replaced by `-`. That
encoding is lossy — can't distinguish `foo-bar` (one segment) from
`foo/bar` (two) — so slug-decoding alone produces wrong names for any
hyphenated project.
Fortunately, every message record carries a `cwd` field with the true
path. This scanner reads one record per session to recover the
accurate project name deterministically, falling back to slug-decoding
only if the JSONL is malformed or empty.
Output shape matches project_scanner.ProjectInfo so the discover
orchestrator can union results across sources. Session count doubles
as a density signal for ranking.
22 unit tests cover: root detection, cwd extraction with malformed
input tolerance, fallback slug decoding, name resolution using the
newest session (so renames win), and dedup when two encoded dirs
resolve to the same project.
Igor Lins e Silva
c7bd2cd8e4