diff --git a/config/scripts/generate-skill-bundle-manifest.mjs b/config/scripts/generate-skill-bundle-manifest.mjs
index d4ba49c9b..9dd15e2bc 100644
--- a/config/scripts/generate-skill-bundle-manifest.mjs
+++ b/config/scripts/generate-skill-bundle-manifest.mjs
@@ -423,20 +423,38 @@ async function buildArtifacts() {
 // Why: released snapshots are the detection ground truth for existing installs,
 // so a generation-logic change must not rewrite them silently. Only the one
 // unreleased working-tree append per skill may change between runs.
-function assertReleasedHistoryPreserved(committedRegistry, artifacts) {
+function releasedSnapshotCountsFromMapping(releaseMapping) {
+  if (!releaseMapping || releaseMapping.schemaVersion !== RELEASE_MAPPING_SCHEMA_VERSION) {
+    return null
+  }
+  const counts = {}
+  for (const release of releaseMapping.releases ?? []) {
+    for (const [name, revision] of Object.entries(release.skills ?? {})) {
+      counts[name] = Math.max(counts[name] ?? 0, revision)
+    }
+  }
+  return counts
+}
+
+function assertReleasedHistoryPreserved(committedRegistry, artifacts, committedReleaseMapping) {
   if (!committedRegistry || committedRegistry.schemaVersion !== SNAPSHOT_REGISTRY_SCHEMA_VERSION) {
     return
   }
+  const committedReleasedCounts = releasedSnapshotCountsFromMapping(committedReleaseMapping)
   for (const [name, committedSnapshots] of Object.entries(committedRegistry.skills ?? {})) {
     const releasedCount = artifacts.releasedSnapshotCounts[name] ?? 0
     const regenerated = artifacts.snapshotRegistry.skills[name] ?? []
-    if (releasedCount < Math.max(0, committedSnapshots.length - 1)) {
+    const minimumReleasedCount =
+      committedReleasedCounts?.[name] ?? Math.max(0, committedSnapshots.length - 1)
+    if (releasedCount < minimumReleasedCount) {
       throw new Error(
         `Released snapshot history is incomplete for ${name}. ` +
           'Fetch all release tags before regenerating skill artifacts.'
       )
     }
-    const protectedCount = Math.min(committedSnapshots.length, releasedCount)
+    const protectedCount = committedReleasedCounts
+      ? (committedReleasedCounts[name] ?? 0)
+      : Math.min(committedSnapshots.length, releasedCount)
     for (let index = 0; index < protectedCount; index += 1) {
       const committed = committedSnapshots[index]
       const rebuilt = regenerated[index]
@@ -458,6 +476,14 @@ async function readCommittedRegistry() {
   }
 }
 
+async function readCommittedReleaseMapping() {
+  try {
+    return JSON.parse(await readFile(RELEASE_MAPPING_PATH, 'utf8'))
+  } catch {
+    return null
+  }
+}
+
 function serialized(value) {
   return `${JSON.stringify(value, null, 2)}\n`
 }
@@ -532,7 +558,11 @@ async function verifyArtifacts(artifacts) {
 
 async function main() {
   const artifacts = await buildArtifacts()
-  assertReleasedHistoryPreserved(await readCommittedRegistry(), artifacts)
+  assertReleasedHistoryPreserved(
+    await readCommittedRegistry(),
+    artifacts,
+    await readCommittedReleaseMapping()
+  )
   await (process.argv.includes('--write') ? writeArtifacts : verifyArtifacts)(artifacts)
 }
 
diff --git a/config/scripts/generate-skill-bundle-manifest.test.mjs b/config/scripts/generate-skill-bundle-manifest.test.mjs
index a6539f800..1552cb047 100644
--- a/config/scripts/generate-skill-bundle-manifest.test.mjs
+++ b/config/scripts/generate-skill-bundle-manifest.test.mjs
@@ -137,6 +137,36 @@ describe('skill bundle manifest generator', () => {
     expect(() => assertReleasedHistoryPreserved(null, artifacts)).not.toThrow()
   })
 
+  it('protects only revisions named by the committed release mapping', () => {
+    const snapshot = (releaseRevision, packageDigest) => ({ releaseRevision, packageDigest })
+    const committedRegistry = {
+      schemaVersion: 1,
+      skills: {
+        'linear-tickets': [snapshot(1, 'released'), snapshot(2, 'unreleased-tail')]
+      }
+    }
+    const artifacts = {
+      releasedSnapshotCounts: { 'linear-tickets': 2 },
+      snapshotRegistry: {
+        schemaVersion: 1,
+        skills: { 'linear-tickets': [snapshot(1, 'released'), snapshot(2, 'new-release')] }
+      }
+    }
+
+    expect(() =>
+      assertReleasedHistoryPreserved(committedRegistry, artifacts, {
+        schemaVersion: 1,
+        releases: [{ appVersion: '1.0.0', skills: { 'linear-tickets': 1 } }]
+      })
+    ).not.toThrow()
+    expect(() =>
+      assertReleasedHistoryPreserved(committedRegistry, artifacts, {
+        schemaVersion: 1,
+        releases: [{ appVersion: '1.0.0', skills: { 'linear-tickets': 2 } }]
+      })
+    ).toThrow('Released snapshot history changed for linear-tickets at revision 2')
+  })
+
   it('tolerates only redundant trailing release-mapping rows', () => {
     const serialized = (value) => `${JSON.stringify(value, null, 2)}\n`
     const rows = [
diff --git a/resources/skills/current-manifest.json b/resources/skills/current-manifest.json
index 2662ae48a..362fc24cf 100644
--- a/resources/skills/current-manifest.json
+++ b/resources/skills/current-manifest.json
@@ -22,7 +22,7 @@
     {
       "name": "linear-tickets",
       "sourcePath": "skills/linear-tickets",
-      "releaseRevision": 6,
+      "releaseRevision": 7,
       "packageDigest": "ff9f085631f753f059c631d874177ddd4fa847c5eca85a420dc85fb2bece6ff6",
       "gitTreeSha": "e35ac3c0c583661983d3fc1352ff3aec74e67e8c",
       "files": [
@@ -94,7 +94,7 @@
     {
       "name": "orca-linear",
       "sourcePath": "skills/orca-linear",
-      "releaseRevision": 4,
+      "releaseRevision": 5,
       "packageDigest": "5e9622bd3883c0f53e6bd349758096deafceebd2fa260d3e90d677e64d06416d",
       "gitTreeSha": "f3727995a4719fd522119eca6d1b57542cb5fe23",
       "files": [
diff --git a/resources/skills/release-mapping.json b/resources/skills/release-mapping.json
index b83af3545..a98533ed0 100644
--- a/resources/skills/release-mapping.json
+++ b/resources/skills/release-mapping.json
@@ -561,6 +561,19 @@
         "orca-per-workspace-env": 2,
         "orchestration": 25
       }
+    },
+    {
+      "appVersion": "1.4.149-rc.2",
+      "skills": {
+        "computer-use": 5,
+        "linear-tickets": 6,
+        "orca-cli": 35,
+        "orca-emulator": 4,
+        "orca-emulator-android": 2,
+        "orca-linear": 4,
+        "orca-per-workspace-env": 2,
+        "orchestration": 25
+      }
     }
   ]
 }
diff --git a/resources/skills/snapshot-registry.json b/resources/skills/snapshot-registry.json
index eb0d14051..c8d7fab3c 100644
--- a/resources/skills/snapshot-registry.json
+++ b/resources/skills/snapshot-registry.json
@@ -1214,6 +1214,22 @@
       },
       {
         "releaseRevision": 6,
+        "packageDigest": "f198d7b22e5ee1673dac403f9cca0553b124e0a90e4fdd05d2c23b7344e32d2b",
+        "gitTreeSha": "de9fc106bbb4e313a90ff9a9513a720909bbd176",
+        "files": [
+          {
+            "path": "SKILL.md",
+            "size": 10596,
+            "executable": false,
+            "classification": "text",
+            "exactSha256": "0c3077c93328b9965430cd6951f1a35889b8c0775037870ea3a8bcf303d9d2c5",
+            "textNormalizedSha256": "0c3077c93328b9965430cd6951f1a35889b8c0775037870ea3a8bcf303d9d2c5",
+            "identitySha256": "0c3077c93328b9965430cd6951f1a35889b8c0775037870ea3a8bcf303d9d2c5"
+          }
+        ]
+      },
+      {
+        "releaseRevision": 7,
         "packageDigest": "ff9f085631f753f059c631d874177ddd4fa847c5eca85a420dc85fb2bece6ff6",
         "gitTreeSha": "e35ac3c0c583661983d3fc1352ff3aec74e67e8c",
         "files": [
@@ -1280,6 +1296,22 @@
       },
       {
         "releaseRevision": 4,
+        "packageDigest": "d44d09e6ecb6a64da177083aad26a95f031cd1cf26ba059fdc888c2628aef64f",
+        "gitTreeSha": "c34f42030f43e5a85737996fa375bbd79cb5bea8",
+        "files": [
+          {
+            "path": "SKILL.md",
+            "size": 10320,
+            "executable": false,
+            "classification": "text",
+            "exactSha256": "48ded55ec3842ce65105e6db7adf9bc9ed263ece08555cec056e68e90321c3d5",
+            "textNormalizedSha256": "48ded55ec3842ce65105e6db7adf9bc9ed263ece08555cec056e68e90321c3d5",
+            "identitySha256": "48ded55ec3842ce65105e6db7adf9bc9ed263ece08555cec056e68e90321c3d5"
+          }
+        ]
+      },
+      {
+        "releaseRevision": 5,
         "packageDigest": "5e9622bd3883c0f53e6bd349758096deafceebd2fa260d3e90d677e64d06416d",
         "gitTreeSha": "f3727995a4719fd522119eca6d1b57542cb5fe23",
         "files": [