---
title: "Decisions"
description: "Canonical architectural decisions and their supersession history."
navLabel: "Decisions"
order: 65
nav: false
navGroup: "Reference"
eyebrow: "Decision log"
status: "canonical"
theme: "main"
visibility: "public"
---

## Active decisions

1. [Main is the canonical map](/decisions/0001-main-is-canonical-map)
2. [Content compiles into page projections](/decisions/0002-content-page-projections)
3. [External services are adapters, not owners](/decisions/0003-adapters-not-owners)
4. [Har is a contract before a fork](/decisions/0004-har-before-fork)
5. [Interface boundaries are projections](/decisions/0005-interface-projections)
6. [Addresses and action envelopes](/decisions/0006-addresses-action-envelopes)
7. [Authority is resolved from immutable attenuating records](/decisions/0007-authority-and-capabilities)
8. [Events are ordered and idempotency is durable state](/decisions/0008-events-receipts-idempotency)
9. [Evidence is not a verdict](/decisions/0009-evidence-objective-verdicts)
10. [External bindings and succession preserve distinction](/decisions/0010-bindings-succession)
11. [The reference kernel is storage-neutral](/decisions/0011-reference-protocol-kernel)
12. [Pre Accounts are durable holons and `*.pre.bi` hostnames are network bindings](/decisions/0012-pre-accounts-network-bindings)

## Decision discipline

A decision record states context, decision, consequences, and status. Material reversals create a new record that supersedes the old one rather than silently rewriting history.

Implementation discoveries that do not yet rise to a settled boundary are retained in [Learnings](/learnings).