Pre-fix `agnes pull` decided what to download from sync_state hash
equality alone:
if server_hash != local_hash or tid not in local_tables or not server_hash:
to_download.append(tid)
If the recorded local hash matched server but the actual parquet had
been deleted from disk, the download was skipped. The next DuckDB
view rebuild then fails on a missing file. Repro: `rm
server/parquet/X.parquet && agnes pull` → 'Updated 0 tables', X
still missing.
Failure modes that produce hash-equal-but-file-missing:
- manual `rm` of a single parquet
- operator-side cleanup of `server/parquet/`
- two workspaces sharing one user's
`~/.config/agnes/sync_state.json` (TODO(workspace-scoped-sync-state)
in pull.py): one workspace writes its parquets, the other reads
sync_state and concludes 'I already have these'
- disk corruption / partial restore from backup
Fix: existence check runs alongside the hash compare. Missing file
forces a re-download regardless of hash equality. `parquet_dir` is
hoisted above the loop so the existence check is in scope when the
download set is built.
Tests: regression test for the hash-equal-but-missing-file case +
counterpart for the fast-path (hash-equal-and-file-present must
still skip).
Real bug: `agnes push` was reading `<workspace>/user/sessions/`, but
Claude Code writes session jsonls to `~/.claude/projects/<encoded-cwd>/`
and nothing on the analyst side ever copies them across. The SessionEnd
hook ran `agnes push` happily and uploaded zero sessions every time.
`cli/lib/claude_sessions.py` probes both Claude Code encoding variants
(older `/`→`-` keeping spaces+tildes; newer all-non-alphanumeric→`-`
with collapsed runs) and unions whichever exist. Users who upgraded
Claude Code mid-project end up with both encoded dirs side-by-side on
disk; the union ensures no session is left behind. Same-named jsonl in
both dirs → newest mtime wins. `<workspace>/user/sessions/` survives as
a fallback for any setup that explicitly mirrors sessions there.
Verified on real disk: helper returns 2 dirs + 8 unioned session files
for the Agnes-test workspace where the previous code returned 0.
