jobq: say the graph is runtime-only, because it is

The crate described itself as a persistent scheduler and NodeId promised
stability across restarts. Neither is true: hive-c0re constructs an empty
Graph on every boot and re-derives desired state with its reconcile sweep,
and nothing in the workspace writes or loads a graph. hive-c0re's own
job_queue module doc has said "runtime-only (no persistence)" all along —
only the extracted library's prose drifted.

Seven claims corrected across the module doc, NodeId, the id-counter error
and the Graph type, plus the repo map. The module doc now states the fact
positively rather than just dropping the word: serde exists so the graph can
be projected onto a wire and so a store could be added later, ids and
timestamps are stable within a run.

NodeId spells out the consequence, since that is the part that could mislead
someone: an id stored outside the process is a historical record, not a
handle that will resolve after a restart.
This commit is contained in:
atlas 2026-08-03 15:46:09 +02:00 committed by mara
commit 6e18bbc839
2 changed files with 29 additions and 13 deletions

View file

@ -53,9 +53,12 @@ hand-maintained per-file tree drifts out of sync with the code.
streamable-http listener, `hive-mcp-http` systemd unit) + its claude
launch-config layer (tool-group/capability → `--allowedTools`,
`--mcp-config` render).
- **`hive-jobq/`** — persistent job-DAG scheduler, extracted from
hive-c0re's in-tree `job_queue` as a domain-agnostic library. One
persistent graph for the whole system (not a DAG per job); enqueuing
- **`hive-jobq/`** — job-DAG scheduler, extracted from hive-c0re's
in-tree `job_queue` as a domain-agnostic library. **Runtime-only —
nothing writes the graph to disk**; hive-c0re starts empty each boot
and re-derives desired state via the reconcile sweep, so node ids and
timestamps are stable within a run, not across restarts. One
shared graph for the whole system (not a DAG per job); enqueuing
inserts a self-contained sub-DAG and returns the ids of the nodes the job
asked for, in the order it named them. Generic over
the node payload `N` and the resource name `R`; resource deps are named