diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 7dd3ed20..7aaac7a8 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -1,16 +1,18 @@
-name: Publish json-document prerelease
+name: Publish v2 prerelease package
 
 on:
   push:
     tags:
       - "json-document-v*-rc.*"
+      - "json-document-collaboration-v*-rc.*"
+      - "json-document-contenteditable-collaboration-v*-rc.*"
 
 permissions:
   contents: read
   id-token: write
 
 concurrency:
-  group: npm-json-document-${{ github.ref }}
+  group: npm-v2-package-${{ github.ref }}
   cancel-in-progress: false
 
 jobs:
@@ -30,15 +32,39 @@ jobs:
           node-version: "24"
           registry-url: "https://registry.npmjs.org"
           package-manager-cache: false
-      - name: Verify core prerelease identity
-        if: startsWith(github.ref_name, 'json-document-v')
+      - name: Resolve prerelease package
+        id: release
         env:
           RELEASE_TAG: ${{ github.ref_name }}
         run: |
           node --input-type=module --eval '
-            import { readFileSync } from "node:fs";
-            const pkg = JSON.parse(readFileSync("packages/json-document/package.json", "utf8"));
-            const expectedTag = `json-document-v${pkg.version}`;
+            import { appendFileSync, readFileSync } from "node:fs";
+
+            const releases = [
+              {
+                prefix: "json-document-contenteditable-collaboration-v",
+                packageFile: "packages/contenteditable-collaboration/package.json",
+                workspace: "@interactive-os/json-document-contenteditable-collaboration",
+              },
+              {
+                prefix: "json-document-collaboration-v",
+                packageFile: "packages/json-document-collaboration/package.json",
+                workspace: "@interactive-os/json-document-collaboration",
+              },
+              {
+                prefix: "json-document-v",
+                packageFile: "packages/json-document/package.json",
+                workspace: "@interactive-os/json-document",
+              },
+            ];
+
+            const release = releases.find(({ prefix }) => process.env.RELEASE_TAG.startsWith(prefix));
+            if (release === undefined) {
+              throw new Error(`unsupported release tag ${process.env.RELEASE_TAG}`);
+            }
+
+            const pkg = JSON.parse(readFileSync(release.packageFile, "utf8"));
+            const expectedTag = `${release.prefix}${pkg.version}`;
             if (process.env.RELEASE_TAG !== expectedTag) {
               throw new Error(`release tag ${process.env.RELEASE_TAG} does not match ${expectedTag}`);
             }
@@ -48,10 +74,13 @@ jobs:
             if (pkg.publishConfig?.tag !== "next") {
               throw new Error("publishConfig.tag must remain next for prereleases");
             }
+            appendFileSync(process.env.GITHUB_OUTPUT, `workspace=${release.workspace}\n`);
           '
       - name: Install dependencies
         run: npm ci --no-audit --no-fund
-      - name: Verify core prerelease
+      - name: Verify v2 prerelease graph
         run: npm run release:check
-      - name: Publish core prerelease
-        run: npm publish -w @interactive-os/json-document --tag next --provenance
+      - name: Publish prerelease package
+        env:
+          RELEASE_WORKSPACE: ${{ steps.release.outputs.workspace }}
+        run: npm publish -w "$RELEASE_WORKSPACE" --tag next --access public --provenance
diff --git a/docs/changelog.md b/docs/changelog.md
index e3a0e116..6f3348cb 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -5,6 +5,12 @@ All notable changes to the active v2 packages are documented here. The complete
 
 ## Unreleased
 
+- Added independent prerelease tag publishing for the Core and both optional
+  collaboration packages, and kept the live-site archive gate aware of the two
+  supported v2 companions.
+- Enabled the two root-value cases that the active RFC 6902 implementation
+  already conforms to and documented the two vendored duplicate-member cases
+  that JSON module parsing cannot represent.
 - Added the independently versioned, transport-free
   `@interactive-os/json-document-collaboration` provider. Local and
   collaborative runtimes expose the same six-member `JSONDocument` Projection;
diff --git a/docs/generated/repo-catalog.json b/docs/generated/repo-catalog.json
index e56eebb8..5b420a8a 100644
--- a/docs/generated/repo-catalog.json
+++ b/docs/generated/repo-catalog.json
@@ -59,7 +59,7 @@
       "status": "companion",
       "private": false,
       "publishable": true,
-      "version": "0.1.0",
+      "version": "0.1.0-rc.0",
       "description": "Transport-free causal collaboration provider for @interactive-os/json-document.",
       "license": "MIT",
       "summary": "Transport-free causal collaboration provider for the six-member\n`@interactive-os/json-document` Projection contract.",
@@ -119,7 +119,7 @@
       "status": "companion",
       "private": false,
       "publishable": true,
-      "version": "0.1.0",
+      "version": "0.1.0-rc.0",
       "description": "IME-safe contenteditable publication lease for json-document collaboration text.",
       "license": "MIT",
       "summary": "IME-safe DOM publication lease for\n`@interactive-os/json-document-collaboration/text`.",
diff --git a/docs/standard/v2-projection-profile.md b/docs/standard/v2-projection-profile.md
index aaa3262e..de0fdd55 100644
--- a/docs/standard/v2-projection-profile.md
+++ b/docs/standard/v2-projection-profile.md
@@ -161,7 +161,10 @@ conformance corpus의 public-root binding을 서로 분리한다.
 | `packages/json-document/tests/public/v2-jsonpath-standard-conformance.test.ts` | public root Projection의 전체 RFC 9535 CTS binding |
 
 suite가 export하는 structural type은 test harness 내부 계약이며 package public
-export가 아니다.
+export가 아니다. Vendored RFC 6902 corpus 112건 중 110건을 실행한다. 남은 2건은
+원본 JSON에 중복 `op` member가 있지만 JSON module parsing 단계에서 마지막
+member만 남아 public operation object로는 그 입력을 표현할 수 없어, 각 fixture에
+명시적인 `disabledReason`을 기록한다.
 
 21개 요구사항의 현재 증거 상태는 runtime 13개, static 6개, deferred 2개다.
 schema-free `applyPatch`는 구현됐다. transform identity의 two-provider 검증,
diff --git a/package-lock.json b/package-lock.json
index 66c980c4..f328f0d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5028,7 +5028,7 @@
     },
     "packages/contenteditable-collaboration": {
       "name": "@interactive-os/json-document-contenteditable-collaboration",
-      "version": "0.1.0",
+      "version": "0.1.0-rc.0",
       "license": "MIT",
       "devDependencies": {
         "@interactive-os/json-document": "*",
@@ -5040,7 +5040,7 @@
       },
       "peerDependencies": {
         "@interactive-os/json-document": "^2.0.0-rc.0",
-        "@interactive-os/json-document-collaboration": "^0.1.0"
+        "@interactive-os/json-document-collaboration": "^0.1.0-rc.0"
       }
     },
     "packages/json-document": {
@@ -5055,7 +5055,7 @@
     },
     "packages/json-document-collaboration": {
       "name": "@interactive-os/json-document-collaboration",
-      "version": "0.1.0",
+      "version": "0.1.0-rc.0",
       "license": "MIT",
       "devDependencies": {
         "@interactive-os/json-document": "*",
diff --git a/packages/contenteditable-collaboration/package.json b/packages/contenteditable-collaboration/package.json
index d5147b45..88758189 100644
--- a/packages/contenteditable-collaboration/package.json
+++ b/packages/contenteditable-collaboration/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@interactive-os/json-document-contenteditable-collaboration",
-  "version": "0.1.0",
+  "version": "0.1.0-rc.0",
   "description": "IME-safe contenteditable publication lease for json-document collaboration text.",
   "type": "module",
   "license": "MIT",
@@ -47,7 +47,7 @@
   },
   "peerDependencies": {
     "@interactive-os/json-document": "^2.0.0-rc.0",
-    "@interactive-os/json-document-collaboration": "^0.1.0"
+    "@interactive-os/json-document-collaboration": "^0.1.0-rc.0"
   },
   "devDependencies": {
     "@interactive-os/json-document": "*",
diff --git a/packages/json-document-collaboration/package.json b/packages/json-document-collaboration/package.json
index 1a58f57b..79dfa737 100644
--- a/packages/json-document-collaboration/package.json
+++ b/packages/json-document-collaboration/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@interactive-os/json-document-collaboration",
-  "version": "0.1.0",
+  "version": "0.1.0-rc.0",
   "description": "Transport-free causal collaboration provider for @interactive-os/json-document.",
   "type": "module",
   "license": "MIT",
diff --git a/packages/json-document/tests/conformance/v2/rfc6902-suite.ts b/packages/json-document/tests/conformance/v2/rfc6902-suite.ts
index 24dc06af..9875456e 100644
--- a/packages/json-document/tests/conformance/v2/rfc6902-suite.ts
+++ b/packages/json-document/tests/conformance/v2/rfc6902-suite.ts
@@ -14,6 +14,7 @@ interface RFC6902Case {
   readonly expected?: unknown;
   readonly error?: string;
   readonly disabled?: boolean;
+  readonly disabledReason?: string;
 }
 
 export interface RFC6902Harness {
@@ -35,7 +36,7 @@ export function runRFC6902Conformance(harness: RFC6902Harness): void {
     for (const [index, testCase] of allCases.entries()) {
       const label = `[${index}] ${testCase.comment ?? "(no comment)"}`;
       if (testCase.disabled) {
-        test.skip(label, () => undefined);
+        test.skip(`${label} — ${testCase.disabledReason ?? "no reason recorded"}`, () => undefined);
         continue;
       }
 
@@ -58,8 +59,13 @@ export function runRFC6902Conformance(harness: RFC6902Harness): void {
 
     test("vendored suite size is intentional", () => {
       expect(allCases).toHaveLength(112);
-      expect(allCases.length - disabled).toBe(108);
-      expect(disabled).toBe(4);
+      expect(allCases.length - disabled).toBe(110);
+      expect(disabled).toBe(2);
+      expect(
+        allCases
+          .filter((testCase) => testCase.disabled)
+          .every((testCase) => testCase.disabledReason !== undefined),
+      ).toBe(true);
     });
   });
 }
diff --git a/packages/json-document/tests/public/json-patch/conformance/spec_tests.json b/packages/json-document/tests/public/json-patch/conformance/spec_tests.json
index c160535b..696c2ec4 100644
--- a/packages/json-document/tests/public/json-patch/conformance/spec_tests.json
+++ b/packages/json-document/tests/public/json-patch/conformance/spec_tests.json
@@ -193,7 +193,8 @@
   { "op": "add", "path": "/baz", "value": "qux", "op": "remove" }
 ],
     "error": "operation has two 'op' members",
-    "disabled": true
+    "disabled": true,
+    "disabledReason": "JSON parsing collapses the duplicate op member before the operation reaches the public API"
   },
 
   {
diff --git a/packages/json-document/tests/public/json-patch/conformance/tests.json b/packages/json-document/tests/public/json-patch/conformance/tests.json
index ae1f7f02..c24bf478 100644
--- a/packages/json-document/tests/public/json-patch/conformance/tests.json
+++ b/packages/json-document/tests/public/json-patch/conformance/tests.json
@@ -52,8 +52,7 @@
     { "comment": "Toplevel scalar values OK?",
       "doc": "foo",
       "patch": [{"op": "replace", "path": "", "value": "bar"}],
-      "expected": "bar",
-      "disabled": true },
+      "expected": "bar" },
 
     { "comment": "replace object document with array document?",
       "doc": {},
@@ -264,7 +263,7 @@
     { "comment": "Whole document",
       "doc": { "foo": 1 },
       "patch": [{"op": "test", "path": "", "value": {"foo": 1}}],
-      "disabled": true },
+      "expected": { "foo": 1 } },
 
     { "comment": "Empty-string element",
       "doc": { "": 1 },
@@ -443,7 +442,8 @@
       "patch": [ { "op": "add", "path": "/baz", "value": "qux",
                    "op": "move", "from":"/foo" } ],
       "error": "patch has two 'op' members",
-      "disabled": true },
+      "disabled": true,
+      "disabledReason": "JSON parsing collapses the duplicate op member before the operation reaches the public API" },
 
     { "comment": "unrecognized op should fail",
       "doc": {"foo": 1},
diff --git a/scripts/evaluate-archive-isolation.mjs b/scripts/evaluate-archive-isolation.mjs
index 2728ec12..6514df06 100644
--- a/scripts/evaluate-archive-isolation.mjs
+++ b/scripts/evaluate-archive-isolation.mjs
@@ -48,7 +48,7 @@ if (
   ] !== "^2.0.0-rc.0"
   || contenteditableCollaborationPackage.peerDependencies?.[
     "@interactive-os/json-document-collaboration"
-  ] !== "^0.1.0"
+  ] !== "^0.1.0-rc.0"
 ) {
   failures.push("the contenteditable collaboration companion surface is invalid");
 }
diff --git a/scripts/evaluate-live-site.mjs b/scripts/evaluate-live-site.mjs
index 8c18eeac..92a064ce 100644
--- a/scripts/evaluate-live-site.mjs
+++ b/scripts/evaluate-live-site.mjs
@@ -5,6 +5,10 @@ const siteUrl = (process.env.SITE_URL ?? "https://developer-1px.github.io/json-d
 const attempts = Number(process.env.SITE_LIVE_ATTEMPTS ?? "18");
 const delayMs = Number(process.env.SITE_LIVE_DELAY_MS ?? "10000");
 const routes = JSON.parse(readFileSync(new URL("../apps/site/src/site-routes.json", import.meta.url), "utf8"));
+const v2CompanionPackages = new Set([
+  "@interactive-os/json-document-collaboration",
+  "@interactive-os/json-document-contenteditable-collaboration",
+]);
 validateSiteRoutes(routes, fail);
 
 function fail(message) {
@@ -74,8 +78,9 @@ async function checkOnce() {
   ) {
     fail("live llms.txt is missing the v2 Core contract.");
   }
+  const packageReferences = llms.match(/@interactive-os\/json-document-[a-z0-9-]+/g) ?? [];
   if (
-    /@interactive-os\/json-document-(?:[a-z0-9-]+)/.test(llms)
+    packageReferences.some((packageName) => !v2CompanionPackages.has(packageName))
     || /@interactive-os\/json-document\/(?:session|react)\b/.test(llms)
     || /\blabs\/extensions\b/.test(llms)
   ) {