docs(cluster): RFC-005 — server boots from cluster state (Phase 5 design)

The axiom-15 mode switch: omnigraph-server --cluster <dir> (mutually
exclusive with uri/--target/--config, zero omnigraph.yaml reads) serves the
APPLIED revision — graph set from state, query/policy content from the
content-addressed catalog at applied digests, cluster-scoped policy bundles
as the server-level Cedar engine. The load-bearing finding: state is not yet
serving-sufficient (policy applies_to bindings live only in cluster.yaml), so
slice 5A records binding metadata into the applied revision at apply time —
without it, boot-from-state silently becomes the merged read axiom 15
forbids. Fail-fast readiness table (missing state, pending sidecars, missing
blobs, unbound policies all refuse boot with remedies), the expose-all
mcp.expose bridge with its Phase 6 sunset, the operator migration path (exit
criterion 7), and 5A/5B/5C sequencing. The existing boot pipeline
(GraphStartupConfig -> registry -> routing/auth) is reused as-is — a new
source, not a new pipeline.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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aaltshuler 2026-06-10 15:01:04 +03:00
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@ -75,6 +75,7 @@ Working documents for in-flight feature work. Removed when the work lands.
| MCP server surface — full tool parity, stored queries, modular auth (MR-969 / MR-956 / MR-974) | [rfc-003-mcp-server-surface.md](rfc-003-mcp-server-surface.md) |
| Future cluster control plane — declarative as-code config, JSON state ledger, reconciler | [cluster-config-specs.md](cluster-config-specs.md), [cluster-axioms.md](cluster-axioms.md), [cluster-config-implementation-spec.md](cluster-config-implementation-spec.md) |
| Cluster graph & schema apply — Phase 4 sidecars, roll-forward recovery, approval artifacts | [rfc-004-cluster-graph-schema-apply.md](rfc-004-cluster-graph-schema-apply.md) |
| Server boots from cluster state — Phase 5 mode switch, applied-revision serving | [rfc-005-server-cluster-boot.md](rfc-005-server-cluster-boot.md) |
## Boundary