Records the decision to extend the <app> join key with a second
coordinate <env>, governed by an elision rule (env=prod elides → every
existing app's derived names are byte-identical and its tofu plan is a
no-op; non-prod envs take the <app>-<env> suffix, with the Postgres
owner role staying snake-case <app>_<env>_role).
Motivated by the ERP's incoming write-capable AI-agent skill: it needs
an in-cluster sandbox instance (erp-sandbox) with a prod-like Dolibarr
API + isolated database to rehearse writes before a human promotes them
to prod. The ADR reconciles this against ADR-0001 honestly — ADR-0001
rejected an in-cluster sandbox for INFRA-change rehearsal (shared
fleet-wide control planes); ADR-0002 operates one layer up where the
agent's only reach is the app's HTTP API against an isolated DB, so the
fleet blast radius is not in scope. The two are complementary; ADR-0002
does not supersede ADR-0001.
Also:
- vibe/ADR/README.md: index row for 0002 + Last Updated 2026-06-25
- PRD safe-prod-like-environment README: bidirectional back-link to
ADR-0002 on the Adjacent line + Last Updated 2026-06-25
Authored via the ADR Scribe persona, validated via the Continuity Warden
checklist (no-tombstone, breadcrumb, MADR-lite sections, dead-link scan,
bidirectional links).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Add a root AGENTS.md (ecosystem map of factory/tools/cms + agent operating
rules + the persona cohort & workflow) and a new vibe/ knowledge base for LLM
agents, modeled on tree-docs conventions and the factory house style.
vibe/ folders (each with a README hub + contribution rules):
- ADR/ optimized MADR-lite; canonical home going forward (doc/adr stays historical)
- PRD/ one subfolder per PRD, mandatory STATUS.md, QA strategy for big ones
- investigations/ single INV-NNN-slug.md, or stub + folder w/ notebooks
- guidebooks/ tree-docs maps; lab-ecosystem guidebook of factory+tools+cms
- runbooks/ [AGENT]/[HUMAN] step procedures (EN; doc/runbooks stays FR)
- shareouts/ dated FR handouts (decks/mp4)
Seed content (first ADR + PRD): a safe, production-like environment to rehearse
risky changes and recovery without touching real prod — local-only sandbox
(k3d + arm64 VMs) with a hard prod/sandbox isolation boundary. Includes
INV-001 (prod blast-radius couplings), the ecosystem guidebook, and a FR shareout.
Conventions enforced: no-tombstone rule, breadcrumb spine, bidirectional
cross-links, theme:base mermaid (MCP-validated) + ordered-list-after-diagram.
Built with a Workflow + persona cohort; 24 files, zero dead links.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
