diff --git a/docs/CapabilityCatalog.md b/docs/CapabilityCatalog.md
index af73e7d..c23713f 100644
--- a/docs/CapabilityCatalog.md
+++ b/docs/CapabilityCatalog.md
@@ -2,7 +2,7 @@
 
 **Domain:** helix_forge  
 **Updated:** 2026-06-15  
-**Entries:** 12
+**Entries:** 20
 
 Generated by `reuse-surface catalog`. Do not edit manually.
 
@@ -101,7 +101,7 @@ Generated by `reuse-surface catalog`. Do not edit manually.
 ### Capability Registration
 
 - **ID:** `capability.registry.register`
-- **Vector:** D3 / A3 / C2 / R2
+- **Vector:** D3 / A4 / C2 / R2
 - **Owner:** reuse-surface
 - **Path:** `registry/capabilities/capability.registry.register.md`
 - **Summary:** Register a new capability so it becomes visible for planning and implementation reuse.
@@ -142,3 +142,91 @@ Generated by `reuse-surface catalog`. Do not edit manually.
 
 **Known limitations:**
 - requires running State Hub locally or via tunnel
+
+### Capability-Aware Shard Adapter Contract
+
+- **ID:** `capability.wiki.adapter-contract`
+- **Vector:** D5 / A2 / C2 / R1
+- **Owner:** shard-wiki
+- **Path:** `registry/capabilities/capability.wiki.adapter-contract.md`
+- **Summary:** A versioned backend interface where each binding declares a verified capability profile, so federation ops degrade by capability.
+
+**Known limitations:**
+- reference implementation covers the file-store substrate only so far
+
+### Event-Sourced Coordination Journal
+
+- **ID:** `capability.wiki.coordination-journal`
+- **Vector:** D5 / A2 / C2 / R1
+- **Owner:** shard-wiki
+- **Path:** `registry/capabilities/capability.wiki.coordination-journal.md`
+- **Summary:** An append-only, totally-ordered-per-space decision log whose current state is a derived fold; git-addressable history.
+
+**Known limitations:**
+- production git backing + lease are still on the roadmap (SHARD-WP-0009)
+
+### Wiki Derived Views
+
+- **ID:** `capability.wiki.derived-views`
+- **Vector:** D3 / A0 / C0 / R0
+- **Owner:** shard-wiki
+- **Path:** `registry/capabilities/capability.wiki.derived-views.md`
+- **Summary:** Recomputable views over a wiki union — BackLinks, RecentChanges, AllPages, SiteMap, and (delegate-or-derive) Search — carrying provenance.
+
+**Known limitations:**
+- not implemented; Search ranking policy undecided
+
+### Wiki Engine with Typed Extensions
+
+- **ID:** `capability.wiki.engine-typed-extensions`
+- **Vector:** D3 / A0 / C0 / R0
+- **Owner:** shard-wiki
+- **Path:** `registry/capabilities/capability.wiki.engine-typed-extensions.md`
+- **Summary:** A small-core wiki engine realizing a typed-extension framework that addresses all wiki use cases and lets each shard activate only the features it needs.
+
+**Known limitations:**
+- architecture authored; extension SDK/ABI + API protocol still to design; not yet built
+
+### Selectable Federation-Model Taxonomy
+
+- **ID:** `capability.wiki.federation-models`
+- **Vector:** D4 / A0 / C1 / R0
+- **Owner:** shard-wiki
+- **Path:** `registry/capabilities/capability.wiki.federation-models.md`
+- **Summary:** Federation as a plural, composable coordination axis (fork+journal, VCS-replication, query-join, feed, activity-streams, engine-mirror) selected per space.
+
+**Known limitations:**
+- no transport implemented; informational planning reuse only
+
+### Overlay-Before-Mutation Write Path
+
+- **ID:** `capability.wiki.overlay`
+- **Vector:** D5 / A2 / C2 / R1
+- **Owner:** shard-wiki
+- **Path:** `registry/capabilities/capability.wiki.overlay.md`
+- **Summary:** Non-destructive edits (draft -> patch -> apply-under-drift) that let read-only or limited backends be edited safely without silent remote mutation.
+
+**Known limitations:**
+- merge is detect-and-refuse; three-way merge is future work
+
+### Backend-Neutral Wiki Page Model
+
+- **ID:** `capability.wiki.page-model`
+- **Vector:** D5 / A2 / C2 / R1
+- **Owner:** shard-wiki
+- **Path:** `registry/capabilities/capability.wiki.page-model.md`
+- **Summary:** A Markdown-first but stretchable page model with stable identity separate from placement and layered provenance.
+
+**Known limitations:**
+- non-prose shapes specified ahead of implementation
+
+### Wiki Shard Orchestration
+
+- **ID:** `capability.wiki.shard-orchestration`
+- **Vector:** D5 / A2 / C2 / R1
+- **Owner:** shard-wiki
+- **Path:** `registry/capabilities/capability.wiki.shard-orchestration.md`
+- **Summary:** Present a union of pages across heterogeneous wiki-shaped shards while preserving each shard's provenance, capabilities, and history.
+
+**Known limitations:**
+- resolution is recompute-on-read until the incremental tier lands
diff --git a/docs/catalog/index.html b/docs/catalog/index.html
index 14f5268..3a470fc 100644
--- a/docs/catalog/index.html
+++ b/docs/catalog/index.html
@@ -15,7 +15,7 @@
 </head>
 <body>
   <h1>Capability Catalog</h1>
-  <p class="subtitle">Updated 2026-06-15 · 12 entries</p>
+  <p class="subtitle">Updated 2026-06-15 · 20 entries</p>
   <section><h2>helix_forge</h2>
 <article class="card">
   <h3>Organizational Event Coordination</h3>
@@ -67,7 +67,7 @@
 </article>
 <article class="card">
   <h3>Capability Registration</h3>
-  <p class="meta"><code>capability.registry.register</code> · D3 / A3 / C2 / R2</p>
+  <p class="meta"><code>capability.registry.register</code> · D3 / A4 / C2 / R2</p>
   <p>Register a new capability so it becomes visible for planning and implementation reuse.</p>
   <p class="path">registry/capabilities/capability.registry.register.md</p>
 </article>
@@ -88,6 +88,54 @@
   <p class="meta"><code>capability.statehub.workstream-coordinate</code> · D4 / A4 / C3 / R2</p>
   <p>Track active workstreams, tasks, progress, and consistency across domain repositories.</p>
   <p class="path">registry/capabilities/capability.statehub.workstream-coordinate.md</p>
+</article>
+<article class="card">
+  <h3>Capability-Aware Shard Adapter Contract</h3>
+  <p class="meta"><code>capability.wiki.adapter-contract</code> · D5 / A2 / C2 / R1</p>
+  <p>A versioned backend interface where each binding declares a verified capability profile, so federation ops degrade by capability.</p>
+  <p class="path">registry/capabilities/capability.wiki.adapter-contract.md</p>
+</article>
+<article class="card">
+  <h3>Event-Sourced Coordination Journal</h3>
+  <p class="meta"><code>capability.wiki.coordination-journal</code> · D5 / A2 / C2 / R1</p>
+  <p>An append-only, totally-ordered-per-space decision log whose current state is a derived fold; git-addressable history.</p>
+  <p class="path">registry/capabilities/capability.wiki.coordination-journal.md</p>
+</article>
+<article class="card">
+  <h3>Wiki Derived Views</h3>
+  <p class="meta"><code>capability.wiki.derived-views</code> · D3 / A0 / C0 / R0</p>
+  <p>Recomputable views over a wiki union — BackLinks, RecentChanges, AllPages, SiteMap, and (delegate-or-derive) Search — carrying provenance.</p>
+  <p class="path">registry/capabilities/capability.wiki.derived-views.md</p>
+</article>
+<article class="card">
+  <h3>Wiki Engine with Typed Extensions</h3>
+  <p class="meta"><code>capability.wiki.engine-typed-extensions</code> · D3 / A0 / C0 / R0</p>
+  <p>A small-core wiki engine realizing a typed-extension framework that addresses all wiki use cases and lets each shard activate only the features it needs.</p>
+  <p class="path">registry/capabilities/capability.wiki.engine-typed-extensions.md</p>
+</article>
+<article class="card">
+  <h3>Selectable Federation-Model Taxonomy</h3>
+  <p class="meta"><code>capability.wiki.federation-models</code> · D4 / A0 / C1 / R0</p>
+  <p>Federation as a plural, composable coordination axis (fork+journal, VCS-replication, query-join, feed, activity-streams, engine-mirror) selected per space.</p>
+  <p class="path">registry/capabilities/capability.wiki.federation-models.md</p>
+</article>
+<article class="card">
+  <h3>Overlay-Before-Mutation Write Path</h3>
+  <p class="meta"><code>capability.wiki.overlay</code> · D5 / A2 / C2 / R1</p>
+  <p>Non-destructive edits (draft -&gt; patch -&gt; apply-under-drift) that let read-only or limited backends be edited safely without silent remote mutation.</p>
+  <p class="path">registry/capabilities/capability.wiki.overlay.md</p>
+</article>
+<article class="card">
+  <h3>Backend-Neutral Wiki Page Model</h3>
+  <p class="meta"><code>capability.wiki.page-model</code> · D5 / A2 / C2 / R1</p>
+  <p>A Markdown-first but stretchable page model with stable identity separate from placement and layered provenance.</p>
+  <p class="path">registry/capabilities/capability.wiki.page-model.md</p>
+</article>
+<article class="card">
+  <h3>Wiki Shard Orchestration</h3>
+  <p class="meta"><code>capability.wiki.shard-orchestration</code> · D5 / A2 / C2 / R1</p>
+  <p>Present a union of pages across heterogeneous wiki-shaped shards while preserving each shard&#x27;s provenance, capabilities, and history.</p>
+  <p class="path">registry/capabilities/capability.wiki.shard-orchestration.md</p>
 </article></section>
 </body>
 </html>
diff --git a/docs/catalog/registry.json b/docs/catalog/registry.json
index ee9e4cd..1950475 100644
--- a/docs/catalog/registry.json
+++ b/docs/catalog/registry.json
@@ -151,7 +151,7 @@
       "id": "capability.registry.register",
       "name": "Capability Registration",
       "summary": "Register a new capability so it becomes visible for planning and implementation reuse.",
-      "vector": "D3 / A3 / C2 / R2",
+      "vector": "D3 / A4 / C2 / R2",
       "domain": "helix_forge",
       "status": "draft",
       "owner": "reuse-surface",
@@ -164,7 +164,8 @@
       "consumption_modes": [
         "informational",
         "markdown authoring",
-        "cli"
+        "cli",
+        "service API"
       ]
     },
     {
@@ -221,6 +222,171 @@
         "service API",
         "HTTP REST"
       ]
+    },
+    {
+      "id": "capability.wiki.shard-orchestration",
+      "name": "Wiki Shard Orchestration",
+      "summary": "Present a union of pages across heterogeneous wiki-shaped shards while preserving each shard's provenance, capabilities, and history.",
+      "vector": "D5 / A2 / C2 / R1",
+      "domain": "helix_forge",
+      "status": "draft",
+      "owner": "shard-wiki",
+      "path": "registry/capabilities/capability.wiki.shard-orchestration.md",
+      "tags": [
+        "wiki",
+        "federation",
+        "orchestration",
+        "union",
+        "shard-wiki"
+      ],
+      "consumption_modes": [
+        "source module"
+      ]
+    },
+    {
+      "id": "capability.wiki.adapter-contract",
+      "name": "Capability-Aware Shard Adapter Contract",
+      "summary": "A versioned backend interface where each binding declares a verified capability profile, so federation ops degrade by capability.",
+      "vector": "D5 / A2 / C2 / R1",
+      "domain": "helix_forge",
+      "status": "draft",
+      "owner": "shard-wiki",
+      "path": "registry/capabilities/capability.wiki.adapter-contract.md",
+      "tags": [
+        "wiki",
+        "adapter",
+        "capability",
+        "contract",
+        "conformance",
+        "shard-wiki"
+      ],
+      "consumption_modes": [
+        "source module"
+      ]
+    },
+    {
+      "id": "capability.wiki.page-model",
+      "name": "Backend-Neutral Wiki Page Model",
+      "summary": "A Markdown-first but stretchable page model with stable identity separate from placement and layered provenance.",
+      "vector": "D5 / A2 / C2 / R1",
+      "domain": "helix_forge",
+      "status": "draft",
+      "owner": "shard-wiki",
+      "path": "registry/capabilities/capability.wiki.page-model.md",
+      "tags": [
+        "wiki",
+        "page-model",
+        "identity",
+        "provenance",
+        "markdown",
+        "shard-wiki"
+      ],
+      "consumption_modes": [
+        "source module"
+      ]
+    },
+    {
+      "id": "capability.wiki.coordination-journal",
+      "name": "Event-Sourced Coordination Journal",
+      "summary": "An append-only, totally-ordered-per-space decision log whose current state is a derived fold; git-addressable history.",
+      "vector": "D5 / A2 / C2 / R1",
+      "domain": "helix_forge",
+      "status": "draft",
+      "owner": "shard-wiki",
+      "path": "registry/capabilities/capability.wiki.coordination-journal.md",
+      "tags": [
+        "wiki",
+        "event-sourcing",
+        "coordination",
+        "git",
+        "journal",
+        "shard-wiki"
+      ],
+      "consumption_modes": [
+        "source module"
+      ]
+    },
+    {
+      "id": "capability.wiki.overlay",
+      "name": "Overlay-Before-Mutation Write Path",
+      "summary": "Non-destructive edits (draft -> patch -> apply-under-drift) that let read-only or limited backends be edited safely without silent remote mutation.",
+      "vector": "D5 / A2 / C2 / R1",
+      "domain": "helix_forge",
+      "status": "draft",
+      "owner": "shard-wiki",
+      "path": "registry/capabilities/capability.wiki.overlay.md",
+      "tags": [
+        "wiki",
+        "overlay",
+        "patch",
+        "write-path",
+        "conflict",
+        "shard-wiki"
+      ],
+      "consumption_modes": [
+        "source module"
+      ]
+    },
+    {
+      "id": "capability.wiki.federation-models",
+      "name": "Selectable Federation-Model Taxonomy",
+      "summary": "Federation as a plural, composable coordination axis (fork+journal, VCS-replication, query-join, feed, activity-streams, engine-mirror) selected per space.",
+      "vector": "D4 / A0 / C1 / R0",
+      "domain": "helix_forge",
+      "status": "draft",
+      "owner": "shard-wiki",
+      "path": "registry/capabilities/capability.wiki.federation-models.md",
+      "tags": [
+        "wiki",
+        "federation",
+        "taxonomy",
+        "composable",
+        "shard-wiki"
+      ],
+      "consumption_modes": [
+        "informational"
+      ]
+    },
+    {
+      "id": "capability.wiki.engine-typed-extensions",
+      "name": "Wiki Engine with Typed Extensions",
+      "summary": "A small-core wiki engine realizing a typed-extension framework that addresses all wiki use cases and lets each shard activate only the features it needs.",
+      "vector": "D3 / A0 / C0 / R0",
+      "domain": "helix_forge",
+      "status": "draft",
+      "owner": "shard-wiki",
+      "path": "registry/capabilities/capability.wiki.engine-typed-extensions.md",
+      "tags": [
+        "wiki",
+        "engine",
+        "typed-extensions",
+        "feature-activation",
+        "shard-wiki"
+      ],
+      "consumption_modes": [
+        "informational"
+      ]
+    },
+    {
+      "id": "capability.wiki.derived-views",
+      "name": "Wiki Derived Views",
+      "summary": "Recomputable views over a wiki union \u2014 BackLinks, RecentChanges, AllPages, SiteMap, and (delegate-or-derive) Search \u2014 carrying provenance.",
+      "vector": "D3 / A0 / C0 / R0",
+      "domain": "helix_forge",
+      "status": "draft",
+      "owner": "shard-wiki",
+      "path": "registry/capabilities/capability.wiki.derived-views.md",
+      "tags": [
+        "wiki",
+        "derived-views",
+        "backlinks",
+        "recentchanges",
+        "search",
+        "shard-wiki"
+      ],
+      "consumption_modes": [
+        "informational"
+      ]
     }
   ]
 }
\ No newline at end of file
diff --git a/docs/graph/capability-graph.mmd b/docs/graph/capability-graph.mmd
index 7ae3738..6ea8164 100644
--- a/docs/graph/capability-graph.mmd
+++ b/docs/graph/capability-graph.mmd
@@ -7,10 +7,18 @@ graph LR
   capability_feature_control_visibility["capability.feature-control.visibility<br/>D4 / A2 / C2 / R1"]
   capability_identity_subject_resolution["capability.identity.subject-resolution<br/>D3 / A0 / C1 / R0"]
   capability_identity_vocabulary_canonicalize["capability.identity.vocabulary-canonicalize<br/>D4 / A0 / C2 / R0"]
-  capability_registry_register["capability.registry.register<br/>D3 / A3 / C2 / R2"]
+  capability_registry_register["capability.registry.register<br/>D3 / A4 / C2 / R2"]
   capability_registry_validate["capability.registry.validate<br/>D4 / A3 / C3 / R2"]
   capability_statehub_progress_log["capability.statehub.progress-log<br/>D4 / A4 / C3 / R2"]
   capability_statehub_workstream_coordinate["capability.statehub.workstream-coordinate<br/>D4 / A4 / C3 / R2"]
+  capability_wiki_adapter_contract["capability.wiki.adapter-contract<br/>D5 / A2 / C2 / R1"]
+  capability_wiki_coordination_journal["capability.wiki.coordination-journal<br/>D5 / A2 / C2 / R1"]
+  capability_wiki_derived_views["capability.wiki.derived-views<br/>D3 / A0 / C0 / R0"]
+  capability_wiki_engine_typed_extensions["capability.wiki.engine-typed-extensions<br/>D3 / A0 / C0 / R0"]
+  capability_wiki_federation_models["capability.wiki.federation-models<br/>D4 / A0 / C1 / R0"]
+  capability_wiki_overlay["capability.wiki.overlay<br/>D5 / A2 / C2 / R1"]
+  capability_wiki_page_model["capability.wiki.page-model<br/>D5 / A2 / C2 / R1"]
+  capability_wiki_shard_orchestration["capability.wiki.shard-orchestration<br/>D5 / A2 / C2 / R1"]
   capability_activity_event_coordinate -->|related_to| capability_statehub_workstream_coordinate
   capability_activity_event_coordinate -->|related_to| capability_audit_event_retain
   capability_audit_event_retain -->|related_to| capability_activity_event_coordinate
@@ -40,3 +48,24 @@ graph LR
   capability_statehub_progress_log -->|related_to| capability_statehub_workstream_coordinate
   capability_statehub_workstream_coordinate -->|supports| capability_registry_register
   capability_statehub_workstream_coordinate -->|related_to| capability_statehub_progress_log
+  capability_wiki_shard_orchestration -->|depends_on| capability_wiki_adapter_contract
+  capability_wiki_shard_orchestration -->|depends_on| capability_wiki_page_model
+  capability_wiki_shard_orchestration -->|depends_on| capability_wiki_coordination_journal
+  capability_wiki_shard_orchestration -->|supports| capability_wiki_federation_models
+  capability_wiki_adapter_contract -->|depends_on| capability_wiki_page_model
+  capability_wiki_adapter_contract -->|supports| capability_wiki_shard_orchestration
+  capability_wiki_page_model -->|supports| capability_wiki_adapter_contract
+  capability_wiki_page_model -->|supports| capability_wiki_shard_orchestration
+  capability_wiki_coordination_journal -->|supports| capability_wiki_shard_orchestration
+  capability_wiki_coordination_journal -->|supports| capability_wiki_overlay
+  capability_wiki_overlay -->|depends_on| capability_wiki_coordination_journal
+  capability_wiki_overlay -->|depends_on| capability_wiki_adapter_contract
+  capability_wiki_federation_models -->|depends_on| capability_wiki_shard_orchestration
+  capability_wiki_federation_models -->|depends_on| capability_wiki_coordination_journal
+  capability_wiki_engine_typed_extensions -->|depends_on| capability_wiki_adapter_contract
+  capability_wiki_engine_typed_extensions -->|depends_on| capability_wiki_page_model
+  capability_wiki_engine_typed_extensions -->|related_to| capability_feature_control_evaluate
+  capability_wiki_engine_typed_extensions -->|related_to| capability_authorization_policy_evaluate
+  capability_wiki_derived_views -->|depends_on| capability_wiki_shard_orchestration
+  capability_wiki_derived_views -->|depends_on| capability_wiki_page_model
+  capability_wiki_derived_views -->|related_to| capability_wiki_engine_typed_extensions
diff --git a/docs/graph/index.html b/docs/graph/index.html
index 0eb7ef2..5144068 100644
--- a/docs/graph/index.html
+++ b/docs/graph/index.html
@@ -17,7 +17,7 @@
   <p class="legend">Generated from entry <code>relations</code> fields. Regenerate with <code>reuse-surface graph</code>.</p>
   <pre class="mermaid" id="graph"></pre>
   <script>
-    document.getElementById('graph').textContent = "graph LR\n  capability_activity_event_coordinate[\"capability.activity.event-coordinate<br/>D3 / A1 / C1 / R0\"]\n  capability_audit_event_retain[\"capability.audit.event-retain<br/>D4 / A2 / C2 / R1\"]\n  capability_authorization_policy_evaluate[\"capability.authorization.policy-evaluate<br/>D4 / A2 / C2 / R1\"]\n  capability_feature_control_evaluate[\"capability.feature-control.evaluate<br/>D5 / A4 / C3 / R3\"]\n  capability_feature_control_rollout[\"capability.feature-control.rollout<br/>D4 / A2 / C2 / R1\"]\n  capability_feature_control_visibility[\"capability.feature-control.visibility<br/>D4 / A2 / C2 / R1\"]\n  capability_identity_subject_resolution[\"capability.identity.subject-resolution<br/>D3 / A0 / C1 / R0\"]\n  capability_identity_vocabulary_canonicalize[\"capability.identity.vocabulary-canonicalize<br/>D4 / A0 / C2 / R0\"]\n  capability_registry_register[\"capability.registry.register<br/>D3 / A3 / C2 / R2\"]\n  capability_registry_validate[\"capability.registry.validate<br/>D4 / A3 / C3 / R2\"]\n  capability_statehub_progress_log[\"capability.statehub.progress-log<br/>D4 / A4 / C3 / R2\"]\n  capability_statehub_workstream_coordinate[\"capability.statehub.workstream-coordinate<br/>D4 / A4 / C3 / R2\"]\n  capability_activity_event_coordinate -->|related_to| capability_statehub_workstream_coordinate\n  capability_activity_event_coordinate -->|related_to| capability_audit_event_retain\n  capability_audit_event_retain -->|related_to| capability_activity_event_coordinate\n  capability_audit_event_retain -->|related_to| capability_statehub_progress_log\n  capability_authorization_policy_evaluate -->|depends_on| capability_identity_subject_resolution\n  capability_authorization_policy_evaluate -->|related_to| capability_feature_control_evaluate\n  capability_feature_control_evaluate -->|depends_on| capability_identity_vocabulary_canonicalize\n  capability_feature_control_evaluate -->|supports| capability_registry_register\n  capability_feature_control_evaluate -->|related_to| capability_feature_control_rollout\n  capability_feature_control_evaluate -->|related_to| capability_feature_control_visibility\n  capability_feature_control_rollout -->|depends_on| capability_feature_control_evaluate\n  capability_feature_control_rollout -->|related_to| capability_feature_control_visibility\n  capability_feature_control_visibility -->|depends_on| capability_feature_control_evaluate\n  capability_feature_control_visibility -->|related_to| capability_feature_control_rollout\n  capability_identity_subject_resolution -->|depends_on| capability_identity_vocabulary_canonicalize\n  capability_identity_subject_resolution -->|supports| capability_feature_control_evaluate\n  capability_identity_subject_resolution -->|supports| capability_statehub_workstream_coordinate\n  capability_identity_vocabulary_canonicalize -->|supports| capability_feature_control_evaluate\n  capability_identity_vocabulary_canonicalize -->|supports| capability_registry_register\n  capability_identity_vocabulary_canonicalize -->|related_to| capability_identity_subject_resolution\n  capability_registry_register -->|supports| capability_feature_control_evaluate\n  capability_registry_register -->|supports| capability_identity_vocabulary_canonicalize\n  capability_registry_register -->|related_to| capability_registry_validate\n  capability_registry_validate -->|depends_on| capability_registry_register\n  capability_registry_validate -->|related_to| capability_registry_register\n  capability_statehub_progress_log -->|depends_on| capability_statehub_workstream_coordinate\n  capability_statehub_progress_log -->|related_to| capability_statehub_workstream_coordinate\n  capability_statehub_workstream_coordinate -->|supports| capability_registry_register\n  capability_statehub_workstream_coordinate -->|related_to| capability_statehub_progress_log\n";
+    document.getElementById('graph').textContent = "graph LR\n  capability_activity_event_coordinate[\"capability.activity.event-coordinate<br/>D3 / A1 / C1 / R0\"]\n  capability_audit_event_retain[\"capability.audit.event-retain<br/>D4 / A2 / C2 / R1\"]\n  capability_authorization_policy_evaluate[\"capability.authorization.policy-evaluate<br/>D4 / A2 / C2 / R1\"]\n  capability_feature_control_evaluate[\"capability.feature-control.evaluate<br/>D5 / A4 / C3 / R3\"]\n  capability_feature_control_rollout[\"capability.feature-control.rollout<br/>D4 / A2 / C2 / R1\"]\n  capability_feature_control_visibility[\"capability.feature-control.visibility<br/>D4 / A2 / C2 / R1\"]\n  capability_identity_subject_resolution[\"capability.identity.subject-resolution<br/>D3 / A0 / C1 / R0\"]\n  capability_identity_vocabulary_canonicalize[\"capability.identity.vocabulary-canonicalize<br/>D4 / A0 / C2 / R0\"]\n  capability_registry_register[\"capability.registry.register<br/>D3 / A4 / C2 / R2\"]\n  capability_registry_validate[\"capability.registry.validate<br/>D4 / A3 / C3 / R2\"]\n  capability_statehub_progress_log[\"capability.statehub.progress-log<br/>D4 / A4 / C3 / R2\"]\n  capability_statehub_workstream_coordinate[\"capability.statehub.workstream-coordinate<br/>D4 / A4 / C3 / R2\"]\n  capability_wiki_adapter_contract[\"capability.wiki.adapter-contract<br/>D5 / A2 / C2 / R1\"]\n  capability_wiki_coordination_journal[\"capability.wiki.coordination-journal<br/>D5 / A2 / C2 / R1\"]\n  capability_wiki_derived_views[\"capability.wiki.derived-views<br/>D3 / A0 / C0 / R0\"]\n  capability_wiki_engine_typed_extensions[\"capability.wiki.engine-typed-extensions<br/>D3 / A0 / C0 / R0\"]\n  capability_wiki_federation_models[\"capability.wiki.federation-models<br/>D4 / A0 / C1 / R0\"]\n  capability_wiki_overlay[\"capability.wiki.overlay<br/>D5 / A2 / C2 / R1\"]\n  capability_wiki_page_model[\"capability.wiki.page-model<br/>D5 / A2 / C2 / R1\"]\n  capability_wiki_shard_orchestration[\"capability.wiki.shard-orchestration<br/>D5 / A2 / C2 / R1\"]\n  capability_activity_event_coordinate -->|related_to| capability_statehub_workstream_coordinate\n  capability_activity_event_coordinate -->|related_to| capability_audit_event_retain\n  capability_audit_event_retain -->|related_to| capability_activity_event_coordinate\n  capability_audit_event_retain -->|related_to| capability_statehub_progress_log\n  capability_authorization_policy_evaluate -->|depends_on| capability_identity_subject_resolution\n  capability_authorization_policy_evaluate -->|related_to| capability_feature_control_evaluate\n  capability_feature_control_evaluate -->|depends_on| capability_identity_vocabulary_canonicalize\n  capability_feature_control_evaluate -->|supports| capability_registry_register\n  capability_feature_control_evaluate -->|related_to| capability_feature_control_rollout\n  capability_feature_control_evaluate -->|related_to| capability_feature_control_visibility\n  capability_feature_control_rollout -->|depends_on| capability_feature_control_evaluate\n  capability_feature_control_rollout -->|related_to| capability_feature_control_visibility\n  capability_feature_control_visibility -->|depends_on| capability_feature_control_evaluate\n  capability_feature_control_visibility -->|related_to| capability_feature_control_rollout\n  capability_identity_subject_resolution -->|depends_on| capability_identity_vocabulary_canonicalize\n  capability_identity_subject_resolution -->|supports| capability_feature_control_evaluate\n  capability_identity_subject_resolution -->|supports| capability_statehub_workstream_coordinate\n  capability_identity_vocabulary_canonicalize -->|supports| capability_feature_control_evaluate\n  capability_identity_vocabulary_canonicalize -->|supports| capability_registry_register\n  capability_identity_vocabulary_canonicalize -->|related_to| capability_identity_subject_resolution\n  capability_registry_register -->|supports| capability_feature_control_evaluate\n  capability_registry_register -->|supports| capability_identity_vocabulary_canonicalize\n  capability_registry_register -->|related_to| capability_registry_validate\n  capability_registry_validate -->|depends_on| capability_registry_register\n  capability_registry_validate -->|related_to| capability_registry_register\n  capability_statehub_progress_log -->|depends_on| capability_statehub_workstream_coordinate\n  capability_statehub_progress_log -->|related_to| capability_statehub_workstream_coordinate\n  capability_statehub_workstream_coordinate -->|supports| capability_registry_register\n  capability_statehub_workstream_coordinate -->|related_to| capability_statehub_progress_log\n  capability_wiki_shard_orchestration -->|depends_on| capability_wiki_adapter_contract\n  capability_wiki_shard_orchestration -->|depends_on| capability_wiki_page_model\n  capability_wiki_shard_orchestration -->|depends_on| capability_wiki_coordination_journal\n  capability_wiki_shard_orchestration -->|supports| capability_wiki_federation_models\n  capability_wiki_adapter_contract -->|depends_on| capability_wiki_page_model\n  capability_wiki_adapter_contract -->|supports| capability_wiki_shard_orchestration\n  capability_wiki_page_model -->|supports| capability_wiki_adapter_contract\n  capability_wiki_page_model -->|supports| capability_wiki_shard_orchestration\n  capability_wiki_coordination_journal -->|supports| capability_wiki_shard_orchestration\n  capability_wiki_coordination_journal -->|supports| capability_wiki_overlay\n  capability_wiki_overlay -->|depends_on| capability_wiki_coordination_journal\n  capability_wiki_overlay -->|depends_on| capability_wiki_adapter_contract\n  capability_wiki_federation_models -->|depends_on| capability_wiki_shard_orchestration\n  capability_wiki_federation_models -->|depends_on| capability_wiki_coordination_journal\n  capability_wiki_engine_typed_extensions -->|depends_on| capability_wiki_adapter_contract\n  capability_wiki_engine_typed_extensions -->|depends_on| capability_wiki_page_model\n  capability_wiki_engine_typed_extensions -->|related_to| capability_feature_control_evaluate\n  capability_wiki_engine_typed_extensions -->|related_to| capability_authorization_policy_evaluate\n  capability_wiki_derived_views -->|depends_on| capability_wiki_shard_orchestration\n  capability_wiki_derived_views -->|depends_on| capability_wiki_page_model\n  capability_wiki_derived_views -->|related_to| capability_wiki_engine_typed_extensions\n";
   </script>
 </body>
 </html>
diff --git a/registry/indexes/federated.yaml b/registry/indexes/federated.yaml
index 6416232..115457d 100644
--- a/registry/indexes/federated.yaml
+++ b/registry/indexes/federated.yaml
@@ -6,7 +6,7 @@ domain: helix_forge
 collision_policy: warn
 sources:
 - repo: reuse-surface
-  count: 12
+  count: 20
   index: registry/indexes/capabilities.yaml
 capabilities:
 - id: capability.activity.event-coordinate
@@ -150,7 +150,7 @@ capabilities:
   name: Capability Registration
   summary: Register a new capability so it becomes visible for planning and implementation
     reuse.
-  vector: D3 / A3 / C2 / R2
+  vector: D3 / A4 / C2 / R2
   domain: helix_forge
   status: draft
   owner: reuse-surface
@@ -163,6 +163,7 @@ capabilities:
   - informational
   - markdown authoring
   - cli
+  - service API
   source_repo: reuse-surface
   source_index: registry/indexes/capabilities.yaml
 - id: capability.registry.validate
@@ -217,3 +218,160 @@ capabilities:
   - HTTP REST
   source_repo: reuse-surface
   source_index: registry/indexes/capabilities.yaml
+- id: capability.wiki.adapter-contract
+  name: Capability-Aware Shard Adapter Contract
+  summary: A versioned backend interface where each binding declares a verified capability
+    profile, so federation ops degrade by capability.
+  vector: D5 / A2 / C2 / R1
+  domain: helix_forge
+  status: draft
+  owner: shard-wiki
+  path: registry/capabilities/capability.wiki.adapter-contract.md
+  tags:
+  - wiki
+  - adapter
+  - capability
+  - contract
+  - conformance
+  - shard-wiki
+  consumption_modes:
+  - source module
+  source_repo: reuse-surface
+  source_index: registry/indexes/capabilities.yaml
+- id: capability.wiki.coordination-journal
+  name: Event-Sourced Coordination Journal
+  summary: An append-only, totally-ordered-per-space decision log whose current state
+    is a derived fold; git-addressable history.
+  vector: D5 / A2 / C2 / R1
+  domain: helix_forge
+  status: draft
+  owner: shard-wiki
+  path: registry/capabilities/capability.wiki.coordination-journal.md
+  tags:
+  - wiki
+  - event-sourcing
+  - coordination
+  - git
+  - journal
+  - shard-wiki
+  consumption_modes:
+  - source module
+  source_repo: reuse-surface
+  source_index: registry/indexes/capabilities.yaml
+- id: capability.wiki.derived-views
+  name: Wiki Derived Views
+  summary: "Recomputable views over a wiki union \u2014 BackLinks, RecentChanges,\
+    \ AllPages, SiteMap, and (delegate-or-derive) Search \u2014 carrying provenance."
+  vector: D3 / A0 / C0 / R0
+  domain: helix_forge
+  status: draft
+  owner: shard-wiki
+  path: registry/capabilities/capability.wiki.derived-views.md
+  tags:
+  - wiki
+  - derived-views
+  - backlinks
+  - recentchanges
+  - search
+  - shard-wiki
+  consumption_modes:
+  - informational
+  source_repo: reuse-surface
+  source_index: registry/indexes/capabilities.yaml
+- id: capability.wiki.engine-typed-extensions
+  name: Wiki Engine with Typed Extensions
+  summary: A small-core wiki engine realizing a typed-extension framework that addresses
+    all wiki use cases and lets each shard activate only the features it needs.
+  vector: D3 / A0 / C0 / R0
+  domain: helix_forge
+  status: draft
+  owner: shard-wiki
+  path: registry/capabilities/capability.wiki.engine-typed-extensions.md
+  tags:
+  - wiki
+  - engine
+  - typed-extensions
+  - feature-activation
+  - shard-wiki
+  consumption_modes:
+  - informational
+  source_repo: reuse-surface
+  source_index: registry/indexes/capabilities.yaml
+- id: capability.wiki.federation-models
+  name: Selectable Federation-Model Taxonomy
+  summary: Federation as a plural, composable coordination axis (fork+journal, VCS-replication,
+    query-join, feed, activity-streams, engine-mirror) selected per space.
+  vector: D4 / A0 / C1 / R0
+  domain: helix_forge
+  status: draft
+  owner: shard-wiki
+  path: registry/capabilities/capability.wiki.federation-models.md
+  tags:
+  - wiki
+  - federation
+  - taxonomy
+  - composable
+  - shard-wiki
+  consumption_modes:
+  - informational
+  source_repo: reuse-surface
+  source_index: registry/indexes/capabilities.yaml
+- id: capability.wiki.overlay
+  name: Overlay-Before-Mutation Write Path
+  summary: Non-destructive edits (draft -> patch -> apply-under-drift) that let read-only
+    or limited backends be edited safely without silent remote mutation.
+  vector: D5 / A2 / C2 / R1
+  domain: helix_forge
+  status: draft
+  owner: shard-wiki
+  path: registry/capabilities/capability.wiki.overlay.md
+  tags:
+  - wiki
+  - overlay
+  - patch
+  - write-path
+  - conflict
+  - shard-wiki
+  consumption_modes:
+  - source module
+  source_repo: reuse-surface
+  source_index: registry/indexes/capabilities.yaml
+- id: capability.wiki.page-model
+  name: Backend-Neutral Wiki Page Model
+  summary: A Markdown-first but stretchable page model with stable identity separate
+    from placement and layered provenance.
+  vector: D5 / A2 / C2 / R1
+  domain: helix_forge
+  status: draft
+  owner: shard-wiki
+  path: registry/capabilities/capability.wiki.page-model.md
+  tags:
+  - wiki
+  - page-model
+  - identity
+  - provenance
+  - markdown
+  - shard-wiki
+  consumption_modes:
+  - source module
+  source_repo: reuse-surface
+  source_index: registry/indexes/capabilities.yaml
+- id: capability.wiki.shard-orchestration
+  name: Wiki Shard Orchestration
+  summary: Present a union of pages across heterogeneous wiki-shaped shards while
+    preserving each shard's provenance, capabilities, and history.
+  vector: D5 / A2 / C2 / R1
+  domain: helix_forge
+  status: draft
+  owner: shard-wiki
+  path: registry/capabilities/capability.wiki.shard-orchestration.md
+  tags:
+  - wiki
+  - federation
+  - orchestration
+  - union
+  - shard-wiki
+  consumption_modes:
+  - source module
+  source_repo: reuse-surface
+  source_index: registry/indexes/capabilities.yaml