fred withdrew decision F after re-measuring channel-protocol.md with a control: zero uppercase RFC2119 terms, seven lowercase 'must' all disclaiming authority, under a banner refusing requirements status. F rested on 'the doc graph outranks the page's own banner', which contradicts decision D, 'kind follows content'. D is the rule; F was its counterexample. Neither rescue (vision's adjective edit on the citing docs, or a banner edit) was taken: a kind that survives only by editing the evidence around it is not a classification. Q1 answered: docs/README.md prescribes the contract, so by D its content is a spec, and by B it is the source of truth for that contract. A plan never outranks the artifact it planned, so the flatten plan's stale 7-value enum is corrected there rather than competing here. 128 live docs = 108 stamped + 16 operator-held + 3 supersede deferrals + 1 generated.
kind, status
| kind | status |
|---|---|
| guide | active |
Architecture
Status: Partially migrated. The lease-broker security-contract pages below are current references; the remaining architecture pages are still being classified.
This chapter is the canonical home for Mosaic Stack's system model, component boundaries, data and control flow, security model, architecture decisions, and RFCs. It explains why the system has its shape; it does not replace PRD.md, TASKS.md, or the API contract.
Promoted pages
lease-broker-protocol.md— authenticated Unix-socket protocol, identity binding, framing, persistence, and lease transitions.lease-broker-security.md— identity, ancestry, filesystem, whole-class, observer, and named residual security boundaries.mutator-class-gate.md— default-deny tool authorization, runtime adapters, launch choke point, and parser assurance boundary.compaction-revocation.md— Claude/Pi observer lifecycle, runtime generations, revocation, and the bounded residual stale window.channel-protocol.md— current shared channel DTOs and Discord compatibility baseline, with unimplemented adapter work explicitly marked draft.decisions/mos-runtime-portability-m1.md— current logical identity, connector lease, grant, audit, and fencing decision; connector activation remains held.
These pages are current security-contract references and are consumed by the lease-broker acceptance suites. Their live deployment gaps remain explicitly labeled in the pages; this migration does not change runtime behavior.
Planned pages
| Path | Purpose | Status |
|---|---|---|
system-overview.md |
Platform boundary and major request, event, and agent-runtime flows. | Planned. |
component-map.md |
Apps, packages, plugins, and dependency ownership. | Planned. |
data-flow.md |
Data, event, and control-plane movement. | Planned. |
security-model.md |
Trust boundaries, authority, authentication, and authorization model. | Planned. |
decisions/ |
Approved architecture decision records. | Partially migrated. |
rfcs/ |
Proposals and protocol RFCs. | Draft egress RFC indexed. |
Draft RFCs
rfcs/optional-ai-egress-gateways.md— proposed model-egress boundary; not approved or integrated.
Promoted pages must be linked here, from DEVELOPER-GUIDE/README.md, and from SITEMAP.md. Do not create duplicate architecture pages in docs/mosaic-stack/ or the docs root.
Migration backlog — not current architecture
docs/README.md— current documentation contract and placement rules.Documentation information architecture design— approved documentation structure decision, not product architecture.Documentation catalog audit— evidence and migration recommendations, not normative architecture.
Source-of-truth boundary
Architecture pages explain approved design and current system boundaries. Requirements remain in PRD.md; active work remains in TASKS.md; executable behavior remains authoritative in source and tests. Draft proposals belong in rfcs/ or docs/plans/, with status clearly labeled.