Files
hq/00-GENESIS/how-we-build.md
T
jschoubben cf9357e8e9 HQ — the mesh's own documentation
What the mesh is, what it is becoming, and why. Implementation lives in the
code repositories; the reasoning lives here.

  00-GENESIS   mission, engineering context, effect, and the rules that hold
  01-RESEARCH  investigations, before they harden into design
  02-DESIGN    the authoritative specification
  adr          numbered decisions — what was chosen, and what was rejected
  DECISIONS.md the ledger: every decision, in the order it was taken

Written for a reader who is not its author and has no access to the mesh it
describes. Addresses use the documentation ranges of RFC 5737 and RFC 1918;
nodes are named by role.

Single initial commit by intent. The prior history came from a private
repository and carried operational detail — a routable address identified as a
VPN hub, real domain names, a hosting provider — which sanitising a tip commit
would not have removed from the log.
2026-08-22 22:01:32 +02:00

2.0 KiB

How we build

Working notes on the rules that hold across the mesh. Short, and each one earned.

Name a context after its aggregate, not after a metaphor

hal/agents owns Agent. A brain — memory, thoughts, cognition — is something an agent has, a concept inside the aggregate. It is not a module.

The cost of getting this wrong is visible today: hal/brain names the node runtime, so the most evocative word in the system points at infrastructure, and hal/cortex describes itself as "mesh messaging" in its manifest while the anatomy documentation calls it the interactive runtime — and it runs on no node at all.

Anatomy makes attractive names and poor boundaries. Name the thing the domain calls it.

Ubiquitous language is checked, not assumed

If a document states a rule about the mesh, say how the rule is verified. This repository has a documented requirement that every module exposing tools declares brain as a dependency. Zero modules do. An unenforced rule is indistinguishable from a wrong one, and costs more, because people believe it.

Contexts integrate through the record, never through a shared schema

Publish to the stream; do not join across a boundary. Today five domains share one 45-table schema, which is why work that belongs to one context keeps having to be implemented in another.

A failed step must stop the steps after it

Scripted work runs as a sequence, and a sequence that continues past a failure does the next thing in the wrong place. Gate each step on the last: cd X || exit, not cd X followed by a newline.

Earned the obvious way. A git worktree add failed because the branch name collided with an existing namespace; the cd into that worktree failed too; and the cp, git add and git commit that followed ran in the shared checkout and committed to local main. The error was printed and scrolled past.

This is the same shape as the faults this refactor exists to remove — a step reported failure, nothing stopped, and the damage happened somewhere nobody was looking.