jschoubben
50d61398b6
Supersedes ADR 0030's 'types, not behaviour' line for mesh-sdk. The boundary is change-frequency, not kind: the SDK holds the stable spine (tool-serving harness, messaging/event framework, contracts, core primitives) and refuses per-module clients, per-module tool code, and anything volatile — because those are what turned hal/sdk into constant maintenance and made every edit rebuild every module. States the rule (frequent AND cascading is the disease), why the root cause was intra-module feature-sharing leaking into inter-module coupling, and where per-module shared code lives instead (in the module — a shared file, or a module-local sdk for the few large ones). Updates repos.md's canonical mesh-sdk description to match; leaves 0030 untouched (immutable). Claude-Session: https://claude.ai/code/session_01LrgweAeERJYBg88c5cKDzF
00-META
The northern star. What the mesh is, the environment it runs in, and what changes when it works — plus the engineering practice that holds across everything Novox builds. Every research effort and design decision is checked against this folder.
| File / folder | Purpose |
|---|---|
mission.md |
Vision, mission, and the values that decide arguments |
context.md |
The environment — conditions, not aspirations |
effect.md |
What is different when the work is done |
how-we-build.md |
The rules that hold across the mesh, each one earned. The source of the mesh constitution — the governed page the mesh injects into design sessions is derived from it. |
repos.md |
Where implementation lives, and what each repository owns |
process/ |
The playbooks — how work moves through this repository, for engineers and agents alike |
Rules
- Markdown only.
- Stable by nature. Changes here reflect a genuine shift in intent, not iteration. The one
exception is
how-we-build.md, which changes whenever a rule is earned — and only through its amendment process. - Research and design must be traceable back to what is written here.
- Instance-agnostic. These documents describe the mesh as a concept. No machine names, no counts, no topology.
On the architecture overview in the code repository
The code repository carries an architecture overview predating this folder. It is a useful
description of how the mesh works, and its content now lives — anonymised and checked against
the implementation — in 03-DESIGN/00-as-is/. GENESIS answers why;
that document answered how, which is the design layer's job.
It had also drifted from the implementation in ways worth recording, since both were found by comparing it against the code rather than by anyone noticing:
- It described the pipeline as having a separate builder process and a build stage that packages. Neither was true after 2026-08-04; the documents stayed stale until 2026-08-06 (ADR 0014).
- It listed the mesh as spanning a fixed number of named machines, which is exactly the content this repository cannot carry.
It also lists "symlinks, not copies" as a key design principle, and that is a genuine contradiction rather than a stale detail. The mesh's stated intent is that it creates no symlinks at all — the rule is not merely "only the installer may link", and a founding document elevating linking to a principle points the opposite way from where this is going.
What exists today is that the installer owns and reconciles every link
(ADR 0011) — an as-is fact, recorded in
03-DESIGN/00-as-is/05-runtime-and-installation.md.
Centralising who may link narrowed the incident class; it did not close it. The intent is to
remove the mechanism, recorded as ADR 0018.
A founding document contradicting the direction of travel is precisely the failure this folder exists to prevent.