Order the records the way the system is learned

Jochen asked whether the order made sense. It did not -- it followed when
things happened to be decided, which after consolidation is fictional anyway
since record 5 alone folds decisions taken across a week.

Concretely wrong before: the domain statement sat at 8, after five engineering
rules; the constitution was scattered across 5, 12 and 17; the tiers landed at
15, 16, 21 and 22 with process records in between.

Now it walks: what the mesh is (1-3), its tiers from the bottom up (4-8), what
runs on them and how it gets there (9-10), how it is built (11-16), how it is
checked (17-18), how we work (19-23).

Two things made this safe rather than free. It is a permutation, not a
compaction, so the renames go through temporary names -- otherwise two files
want one slot and one is lost. And the reference rewrite is a single
simultaneous pass, because almost every number moved into a slot another number
was vacating; replacing one at a time would have cascaded and pointed things at
the wrong record while still resolving.

Verified: 284 [ADR NNNN](path) links across the repository, all with matching
text and target.

The ordering principle is now stated in 19 rather than left implicit -- the
repository already said "the numbering is the flow" about its folders, and
there was no reason for the records to be the exception.
This commit is contained in:
2026-08-28 23:30:42 +02:00
parent e1febe8e0f
commit 333356cff3
85 changed files with 471 additions and 465 deletions
@@ -3,8 +3,8 @@ status: graduated
initiated: 2026-08-22
touches: [03-DESIGN/00-as-is/05-runtime-and-installation.md]
became:
- 02-DECISIONS/0016-the-node-host.md
- 02-DECISIONS/0016-the-node-host.md
- 02-DECISIONS/0005-the-node-host.md
- 02-DECISIONS/0005-the-node-host.md
- 03-DESIGN/01-to-be/05-the-node-host.md
---
@@ -43,7 +43,7 @@ This effort answers the cost half. It does not choose.
- **There is a third option neither of us named**, and it is the one that also solves Phase 0:
run HAL's own daemons as containers, making Docker the supervisor for everything. Local and
production then have the same shape rather than a translation layer between them.
- **It cannot be all-or-nothing**, and ADR 0008 already says why: a human agent acts through a
- **It cannot be all-or-nothing**, and ADR 0001 already says why: a human agent acts through a
shell and a desktop. Those parts are on the host by definition.
- One incidental finding: the automatic node rescue that documentation describes **does not
exist**. No unit declares `OnFailure=`, and nothing calls `hal-rescue.sh` on a timer.
@@ -57,14 +57,14 @@ which is why the effort sat `active` for five days after being answered. Recorde
finding that is the point of a sweep.
**The third option is what the mesh adopted.** `Docker is the supervisor for everything` is
[ADR 0016](../../02-DECISIONS/0016-the-node-host.md): the
[ADR 0005](../../02-DECISIONS/0005-the-node-host.md): the
host is a plain process on the machine and everything above tier 0 is a container. The substrate
bootstrap declares no service at all — it is package, container, action, container — so the
44-of-44 restart policies this effort counted are the supervision, exactly as it argued.
**Fate-sharing was the hard part, and it is solved the way this effort predicted.** It said any
mesh-native supervisor inherits the problem *unless it sits outside the mesh's own process
tree*. [ADR 0016](../../02-DECISIONS/0016-the-node-host.md) puts
tree*. [ADR 0005](../../02-DECISIONS/0005-the-node-host.md) puts
the launcher there: it supervises the host as a child and shares no code with it, so a host that
cannot start is still recovered.
@@ -128,10 +128,10 @@ What it costs, honestly:
---
## 5. Why it cannot be all-or-nothing — and ADR 0008 already says so
## 5. Why it cannot be all-or-nothing — and ADR 0001 already says so
Some of what runs under systemd today **cannot** be containerised, and the reason is
already in the domain model. ADR 0008:
already in the domain model. ADR 0001:
> a non-human agent acts through a spawned session — a human agent acts through a shell or
> desktop
@@ -223,7 +223,7 @@ fate-sharing reason in §3.
## References
- [`002-local-mesh`](../002-local-mesh/analysis.md) — the effort this came out of
- [`02-DECISIONS/0001`](../../02-DECISIONS/0008-mesh-brokers-nodes-host-agents-think.md) — agent modality, which
- [`02-DECISIONS/0001`](../../02-DECISIONS/0001-mesh-brokers-nodes-host-agents-think.md) — agent modality, which
decides what cannot leave the host
- `modules/hal/meshware/daemon/src/cerebellum.ts:815-828` — the self-restart workaround
- `modules/hal/meshware/systemd/hal-module@.service` — the per-module Docker lifecycle