SCOPE.md: reflect state after MAS-WP-0004/0006/0008

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 5787@bnt-lap001
Assistant-Session: 5db26b82-138b-40cc-9856-4d5eb0f752fd

SCOPE.md

@@ -1,32 +1,83 @@
 # SCOPE
 
-> This file was generated by `statehub register`. Refine it as the repository
-> boundaries become clearer.
-
 ## One-liner
 
-Mail Address Semantics (MAS) v0.1 reference implementation: parser, statute discovery, pure policy, CLI, mail gateway and reference ticket service.
+Reference implementation and spec workbench for Mail Address Semantics
+(MAS): parser, statute discovery, pure policy, generator, CLI, mail
+gateway, reference ticket service, and a tested Postfix integration
+profile. It implements v0.1.1 and the v0.2 draft.
 
 ## Core Idea
 
-mail-address-semantics exists to provide the capability described in INTENT.md.
+Test whether ordinary email addresses can carry limited, parseable
+semantics (opaque targets, `type=id` resources, `+` facets, `!`
+interaction preferences) through real mail infrastructure, without
+changing SMTP and without making addresses credentials or commands
+(INTENT.md). The architectural boundary is fixed: the parser does no I/O,
+policy is pure, only `mas_core/discovery.py` touches the network, and
+delivery stays external.
 
 ## In Scope
 
-- Maintain the repository's primary implementation.
-- Keep docs, tests, and operational metadata current.
+- **Normative bundles.** `mas-v0.1-spec/` (v0.1.1 errata) and
+  `mas-v0.2-spec/` (draft: stand-ins, destination transforms,
+  `resource_id_case`). Spec changes go through
+  `docs/spec-change-proposals.md`.
+- **`mas_core`.** Parser, model, statute validation and lint, exact-host
+  discovery with explicit `inherits`, policy, and the generator with v0.2
+  destination transforms.
+- **`mas_conformance`.** Address, property, statute and v0.2
+  statute-aware corpora, vendored unchanged from the bundles and checked
+  for drift.
+- **`mas` CLI.** `parse`, `explain`, `discover`, `compose`,
+  `lint-statute`, `test`.
+- **`mas_gateway`.** MTA `pipe` and provider-style `webhook` to a
+  normalized HTTP event. It reads sender authentication only from trusted
+  `Authentication-Results`.
+- **Examples.** A static statute and the reference ticket service: create,
+  correlate by address, closed lifecycle, quarantine, a DMARC-gated reply,
+  and a lifetime send cap.
+- **MTA integration.** `integrations/postfix/` (profile plus README),
+  tested against a real Postfix by `experiments/postfix-probe/` and
+  `tests/test_postfix_profile.py` (needs Docker). Exim: notes only
+  (`integrations/exim/NOTES.md`).
+- **Live test environment.** `deploy/railiance/`: the MX for
+  `mas.coulomb.social`, with replies through Scaleway TEM capped at 300.
+  It is temporary; MAS-WP-0007 retires it.
 
 ## Out of Scope
 
-- Own unrelated adjacent systems.
-- Make irreversible operational decisions without human approval.
+- Implementations in other languages (TypeScript, Go), until a second
+  consumer exists. That is also the gate for declaring v0.2 final
+  (MAS-WP-0009).
+- Postfix policy daemon, Exim profile (until there is demand), mail-client
+  plugins and inspectors, browser extensions, a web composer.
+- Central MAS registry, signed statutes, implicit parent-domain
+  inheritance, production identity federation.
+- P3 economic semantics: `$` and `^` stay reserved. Also payments,
+  signatures and marketplaces.
+- Application business logic in the gateway. Production ticketing. Sender
+  policy beyond what the reference service needs to avoid backscatter.
+- Irreversible operational actions (cluster teardown, key revocation,
+  redeploys) without founder approval.
 
 ## Current State
 
-- Status: active; implementation and stability should be verified by the repo agent.
+- Status: active. The reference experiment (MAS-WP-0002) passed its
+  decision gate on 2026-10-18; the findings are in
+  `docs/experiment-review.md`.
+- Finished: MAS-WP-0001 to 0006 and 0008. Postfix profile, v0.1.1 errata,
+  v0.2 draft, address composer, and v0.2 conformance cases.
+- Open: MAS-WP-0007 (retire the live MX; backlog, unblocked) and
+  MAS-WP-0009 (declare v0.2 final; waits for a second implementation or
+  deployment).
+- v0.2 stays a draft (founder, 2026-10-19).
+- The live `mas-mx` pod runs an image built before the profile refactor.
+- Tests: `.venv/bin/pytest` runs 199 tests, offline apart from loopback
+  fixtures and the Docker probe.
 
 ## Getting Oriented
 
-- Start with: INTENT.md
+- Start with: INTENT.md, then `docs/experiment-review.md`
 - Agent instructions: AGENTS.md
 - Workplans: workplans/