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@ -242,10 +242,7 @@ read them à la carte.
endpoint authenticate a pushing hive, and what does a snapshot endpoint authenticate a pushing hive, and what does a snapshot
actually contain?"** → actually contain?"** →
[`docs/snapshot-store.md`](docs/snapshot-store.md). [`docs/snapshot-store.md`](docs/snapshot-store.md).
- **"What is the job queue, as a general idea?"** → - **"How does the rebuild queue work? What are queue kinds and sources?"** →
[`docs/jobq.md`](docs/jobq.md) (operator-facing, no hive-c0re specifics).
- **"How does the rebuild queue work? What are the concrete step kinds,
queue sources, scheduler internals?"** →
[`docs/coordinator.md`](docs/coordinator.md). [`docs/coordinator.md`](docs/coordinator.md).
- **"How does the CI runner work? What's the auto-registration flow?"** → - **"How does the CI runner work? What's the auto-registration flow?"** →
[`docs/ci.md`](docs/ci.md). [`docs/ci.md`](docs/ci.md).

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@ -79,10 +79,8 @@ declarations.
## Scheduler, CI, observability ## Scheduler, CI, observability
- **What is the job queue, as a general idea (not hive-c0re specifics)?** → - **How does the rebuild queue work? What are queue kinds and
[`jobq.md`](jobq.md) — operator-facing, no implementation detail. sources?** → [`coordinator.md`](coordinator.md).
- **How does the rebuild queue work? What are the concrete step kinds,
queue sources, scheduler internals?** → [`coordinator.md`](coordinator.md).
- **How does the CI runner work? What's the auto-registration flow?** → - **How does the CI runner work? What's the auto-registration flow?** →
[`ci.md`](ci.md). [`ci.md`](ci.md).
- **How do I export Claude Code metrics (tokens, cost, tool calls) to - **How do I export Claude Code metrics (tokens, cost, tool calls) to

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@ -8,12 +8,6 @@ and `docs/persistence.md`.
## Job queue ## Job queue
**For the job queue as a general idea — graph of steps, shared resource
slots, no hive-c0re specifics — see [`jobq.md`](jobq.md) instead.** This
section covers the concrete node inventory hive-c0re builds on top of that
engine, plus the internals (module layout, scheduler mechanics,
resource/lease semantics).
Every container/meta operation (rebuild, meta-update, first-spawn, power Every container/meta operation (rebuild, meta-update, first-spawn, power
changes) is submitted to the global job-DAG queue (`hive-c0re/src/job_queue/`) changes) is submitted to the global job-DAG queue (`hive-c0re/src/job_queue/`)
as a **DAG of primitive nodes**. One scheduler task drives all DAGs; as a **DAG of primitive nodes**. One scheduler task drives all DAGs;

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@ -1,52 +0,0 @@
# The job queue, for operators
Every container operation — rebuild, first-spawn, a config-PR deploy,
power changes — runs through one shared job queue. This page explains
what the job queue *is*, as a general idea, independent of what any one
subsystem uses it for. For the hive-c0re-specific step catalogue and the
engineering internals (scheduler, leases, resource windows) see
[`coordinator.md`](coordinator.md) instead.
## What the job queue is, in the abstract
"jobq" is a generic engine for running many interdependent jobs under
limited concurrency — it has no idea what a "container" or a "rebuild" is.
Two ideas are all there is to it:
- **A job is a small graph of steps**, not one opaque blob. Steps can
depend on each other (this step only starts once that one finishes), so
a big operation is really a short, ordered sequence — not a single
black box that's either "done" or "not done."
- **A step can need a shared resource**, which only so many steps can hold
at once (a "slot"). If every currently-running step already holds the
slots it needs, a new step that wants the same one waits its turn —
that's the whole reason things queue instead of all firing at once.
The engine's whole job is: whenever a step's ordering and resource needs
are both satisfied, run it. It has no opinion on what the steps *do* —
that's supplied by whoever builds the graph. hive-c0re is the one thing
building graphs on it today, but nothing about the engine is specific to
containers or rebuilds; there's nothing stopping another subsystem from
using the same engine for its own unrelated queue.
## Watching it happen
Each **row** you see in a queue view (the **BU1LDS** page's R3BU1LD QU3U3
— see [`web-ui/dashboard.md`](web-ui/dashboard.md) — and swarm-ui's
`/jobs` page both render the same underlying graph) is one job; the rows
nested under it are that job's steps, in order (occasionally a couple run
side by side). A step shows one of:
| Glyph | Meaning |
| ----- | -------------------------------------------------------- |
| `⏸` | queued, waiting its turn |
| `▶` | running |
| `◐` | its own work is done, waiting on a step nested under it |
| `✔` | finished successfully |
| `✖` | failed |
| `⊘` | cancelled |
| `·` | skipped (not needed for this run) |
A step that isn't needed for a given run shows as `·` rather than being
left out of the tree entirely, so the same kind of operation keeps a
recognizable shape run to run, whichever steps it actually needed.