Files
hq/03-DESIGN
jochen 1b5f2c2c1a ADR 0113 and to-be 27: address the review of the vault rework
Two decisions taken with the author:
- Genesis delivers and the vault adopts. The vault cannot run first — it is built on the runtime base
  the installation makes after the store, broker and controller, and it learns its work over the bus.
  Genesis generates the foundation's first shared secrets, seals them to the operator key, and
  delivers them to the vault through the path an operator's value takes; from then on the vault holds
  and rotates them. This answers ADR 0085's own reason for rejecting vault-only minting, which 0113
  now names instead of stepping around.
- Rotation re-confirms on every pass. An applier repeats its confirmation until acknowledged, so a lost
  message costs one pass; an applier that stops after applying locks readers out until its supervised
  restart, and that window is stated and shown, not claimed away.

Fixes:
- Scope: a shared secret is made by the vault; a private key (node sealing keys, the operator's key,
  the certificate authority) is made where it is used. The inventory adds the makers the first version
  missed: node and builder broker passwords, and enrolment tokens.
- Broker accounts are created by the broker's provisioner, not the controller, so the controller never
  holds their plaintext; mesh-broker delivers amqp again — one broker per mesh — and only mesh-store
  delivers nothing.
- secret is a reserved provision: only the mesh-vault holder may provide it, and no pin routes around it.
- A secret's contract says whether a recipient applies it or reads it at start; appliers are never
  restarted for it, init-only secrets are applied, and confirmation is to-be 13's standard.
- Operator secrets are one rule everywhere: a secret requirement answered by the vault (0112 no longer
  says otherwise). A data provider's adapter may return fields; the data-return check names a lab consumer.
- 'Holder' now means a seat's holder only; a secret has recipients.
2026-09-25 23:27:58 +02:00
..

03-DESIGN

The authoritative specification. Implementation is built against what is written here.

Two layers

Folder What it is
00-as-is/ The mesh that exists today. Shipped behaviour, described as it is — including behaviour nobody would choose again.
01-to-be/ The mesh being built toward. Every statement traceable to a record in 02-DECISIONS/.

They are never mixed. A statement about the future does not belong in an as-is document, and an as-is document is never edited to describe an intention.

When a to-be design ships, it does not move. Its as-is counterpart is written or updated, the to-be document's status becomes implemented, and both stand — one describing what runs, the other recording what was intended. Deleting the intention loses the reasoning, which is the expensive half.

Frontmatter

Every design document (not the READMEs) carries:

---
layer: as-is | to-be
status: designed | in-progress | implemented | abandoned
code: []                 # owning code repo(s), from 00-META/repos.md
updated: YYYY-MM-DD      # date of the last status change, not of text edits
decisions: []            # 02-DECISIONS/ records this document rests on
---

For an as-is document, status: implemented is the normal state — it describes something that runs — and code: names where that implementation lives.

Status changes when implementation state changes, never because design text was edited. An implemented claim must be defensible from the owning repository's main branch, not from intent. If it cannot be checked, it is in-progress.

Cross-cutting views are generated from this frontmatter by the hq-status skill and never written to disk.

What belongs here

Functional analysis, architectural description, and specification — prose and diagrams only, no code. A manifest field may be named; a manifest may not be pasted. A document enters the to-be layer only after the decision behind it is recorded in 02-DECISIONS/ and the research that produced it is closed.

Subfolders are encouraged where a layer grows enough to need them.