diff --git a/.github/scripts/extract-release-info.mjs b/.github/scripts/extract-release-info.mjs
index 5062cb77f..34c41f8c6 100755
--- a/.github/scripts/extract-release-info.mjs
+++ b/.github/scripts/extract-release-info.mjs
@@ -7,13 +7,21 @@
 
 import { execSync } from "node:child_process"
 import { appendFileSync } from "node:fs"
+import { pathToFileURL } from "node:url"
 
 // Configuration
 const RELEASE_PATTERNS = {
-  desktop: /release\(desktop\): Release (v\d+\.\d+\.\d+(-[0-9A-Z-.]+)?)/i,
-  mobile: /release\(mobile\): Release (v\d+\.\d+\.\d+(-[0-9A-Z-.]+)?)/i,
+  desktop: /^release\(desktop\): Release (v\d+\.\d+\.\d+(?:-[0-9A-Z-.]+)?)(?: \(#\d+\))?$/i,
+  mobile: /^release\(mobile\): Release (v\d+\.\d+\.\d+(?:-[0-9A-Z-.]+)?)(?: \(#\d+\))?$/i,
 }
 
+const RELEASE_PLATFORM_BY_REF = {
+  main: "desktop",
+  "mobile-main": "mobile",
+}
+
+const GITHUB_MERGE_SUBJECT_PATTERN = /^Merge pull request #\d+ from /i
+
 const EXIT_CODES = {
   SUCCESS: 0,
   GIT_ERROR: 2,
@@ -57,7 +65,6 @@ function setGitHubOutput(key, value) {
 
 /**
  * Get the latest commit message
- * @returns {string} Latest commit message
  */
 function getLatestCommitMessage() {
   try {
@@ -69,21 +76,45 @@ function getLatestCommitMessage() {
 }
 
 /**
- * Extract release information from commit message
+ * Extract release information from a commit message.
+ * Prefer the subject. For a standard GitHub merge commit, fall back only to the first non-empty body
+ * line, where GitHub stores the PR title. When a GitHub ref is available, only the platform released
+ * from that branch is considered. Other body lines are ignored so stale release commits cannot
+ * retrigger a release.
  * @param {string} commitMessage - Git commit message
- * @returns {Object|null} Release information or null if no release found
+ * @param {string|undefined} refName - GitHub ref name
+ * @returns {{platform: string, version: string, tagName: string}|null} Release information or null
  */
-function extractReleaseInfo(commitMessage) {
-  for (const [platform, regex] of Object.entries(RELEASE_PATTERNS)) {
-    const match = commitMessage.match(regex)
-    if (match) {
-      const version = match[1]
-      const tagName = `${platform}/${version}`
+export function extractReleaseInfo(commitMessage, refName = process.env.GITHUB_REF_NAME) {
+  const [commitSubject = "", ...commitBodyLines] = commitMessage.split(/\r?\n/)
+  const expectedPlatform = refName ? RELEASE_PLATFORM_BY_REF[refName] : undefined
 
-      return {
-        platform,
-        version,
-        tagName,
+  if (refName && !expectedPlatform) {
+    return null
+  }
+
+  const platforms = expectedPlatform ? [expectedPlatform] : Object.keys(RELEASE_PATTERNS)
+  const candidates = [commitSubject.trim()]
+
+  if (GITHUB_MERGE_SUBJECT_PATTERN.test(commitSubject)) {
+    const pullRequestTitle = commitBodyLines.map((line) => line.trim()).find(Boolean)
+    if (pullRequestTitle) {
+      candidates.push(pullRequestTitle)
+    }
+  }
+
+  for (const candidate of candidates) {
+    for (const platform of platforms) {
+      const match = candidate.match(RELEASE_PATTERNS[platform])
+      if (match) {
+        const version = match[1]
+        const tagName = `${platform}/${version}`
+
+        return {
+          platform,
+          version,
+          tagName,
+        }
       }
     }
   }
@@ -128,4 +159,6 @@ function main() {
   }
 }
 
-main()
+if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
+  main()
+}
diff --git a/.github/scripts/extract-release-info.test.ts b/.github/scripts/extract-release-info.test.ts
new file mode 100644
index 000000000..6adf7e9fe
--- /dev/null
+++ b/.github/scripts/extract-release-info.test.ts
@@ -0,0 +1,161 @@
+import { execFile } from "node:child_process"
+import { mkdtemp, readFile, rm } from "node:fs/promises"
+import { tmpdir } from "node:os"
+import { fileURLToPath } from "node:url"
+import { promisify } from "node:util"
+
+import { join } from "pathe"
+import { describe, expect, it } from "vitest"
+
+import { extractReleaseInfo } from "./extract-release-info.mjs"
+
+const execFileAsync = promisify(execFile)
+
+describe("extractReleaseInfo", () => {
+  it("recognizes a mobile release from the subject and ignores old desktop markers in the body", () => {
+    const commitMessage = [
+      "release(mobile): Release v0.5.7 (#5061)",
+      "",
+      "* release(desktop): release v1.11.0",
+      "* docs(mobile): restore desktop release inputs",
+    ].join("\n")
+
+    expect(extractReleaseInfo(commitMessage, "mobile-main")).toEqual({
+      platform: "mobile",
+      version: "v0.5.7",
+      tagName: "mobile/v0.5.7",
+    })
+  })
+
+  it("rejects a release subject on the wrong target branch", () => {
+    expect(extractReleaseInfo("release(mobile): Release v0.5.7", "main")).toBeNull()
+    expect(extractReleaseInfo("release(desktop): Release v1.12.0", "mobile-main")).toBeNull()
+  })
+
+  it("recognizes the target platform release from a standard merge commit body", () => {
+    const commitMessage = [
+      "Merge pull request #5061 from RSSNext/release/mobile/0.5.7",
+      "",
+      "release(mobile): Release v0.5.7",
+    ].join("\n")
+
+    expect(extractReleaseInfo(commitMessage, "mobile-main")).toEqual({
+      platform: "mobile",
+      version: "v0.5.7",
+      tagName: "mobile/v0.5.7",
+    })
+  })
+
+  it("ignores ordinary commits", () => {
+    expect(extractReleaseInfo("fix(mobile): restore release metadata", "mobile-main")).toBeNull()
+  })
+
+  it("ignores release markers for the wrong platform in a merge commit body", () => {
+    const commitMessage = [
+      "Merge pull request #5061 from RSSNext/release/mobile/0.5.7",
+      "",
+      "release(mobile): Release v0.5.7",
+    ].join("\n")
+
+    expect(extractReleaseInfo(commitMessage, "main")).toBeNull()
+  })
+
+  it("ignores stale release markers later in an ordinary commit body", () => {
+    const commitMessage = [
+      "chore(sync): merge mobile-main into dev",
+      "",
+      "* release(mobile): Release v0.5.6",
+    ].join("\n")
+
+    expect(extractReleaseInfo(commitMessage, "mobile-main")).toBeNull()
+  })
+
+  it("does not use a stale body marker when another platform release is the subject", () => {
+    const commitMessage = [
+      "release(desktop): Release v1.6.0",
+      "",
+      "* release(mobile): Release v0.4.1",
+    ].join("\n")
+
+    expect(extractReleaseInfo(commitMessage, "mobile-main")).toBeNull()
+  })
+
+  it("recognizes a desktop release on main", () => {
+    expect(extractReleaseInfo("release(desktop): Release v1.12.0", "main")).toEqual({
+      platform: "desktop",
+      version: "v1.12.0",
+      tagName: "desktop/v1.12.0",
+    })
+  })
+
+  it("falls back to subject-based platform detection without a GitHub ref", () => {
+    const originalRefName = process.env.GITHUB_REF_NAME
+    delete process.env.GITHUB_REF_NAME
+
+    try {
+      expect(extractReleaseInfo("release(mobile): Release v0.5.7")).toEqual({
+        platform: "mobile",
+        version: "v0.5.7",
+        tagName: "mobile/v0.5.7",
+      })
+    } finally {
+      if (originalRefName === undefined) {
+        delete process.env.GITHUB_REF_NAME
+      } else {
+        process.env.GITHUB_REF_NAME = originalRefName
+      }
+    }
+  })
+
+  it("writes the existing GitHub environment and output values from the latest subject", async () => {
+    const repositoryDir = await mkdtemp(join(tmpdir(), "extract-release-info-"))
+
+    try {
+      const githubEnvPath = join(repositoryDir, "github-env.txt")
+      const githubOutputPath = join(repositoryDir, "github-output.txt")
+      const scriptPath = fileURLToPath(new URL("./extract-release-info.mjs", import.meta.url))
+
+      await execFileAsync("git", ["init"], { cwd: repositoryDir })
+      await execFileAsync("git", ["config", "user.name", "Release Test"], {
+        cwd: repositoryDir,
+      })
+      await execFileAsync("git", ["config", "user.email", "release-test@example.com"], {
+        cwd: repositoryDir,
+      })
+      await execFileAsync(
+        "git",
+        [
+          "commit",
+          "--allow-empty",
+          "-m",
+          "release(mobile): Release v0.5.7 (#5061)",
+          "-m",
+          "* release(desktop): release v1.11.0",
+        ],
+        { cwd: repositoryDir },
+      )
+
+      await execFileAsync("node", [scriptPath], {
+        cwd: repositoryDir,
+        env: {
+          ...process.env,
+          GITHUB_ENV: githubEnvPath,
+          GITHUB_OUTPUT: githubOutputPath,
+          GITHUB_REF_NAME: "mobile-main",
+        },
+      })
+
+      const githubEnv = await readFile(githubEnvPath, "utf8")
+      const githubOutput = await readFile(githubOutputPath, "utf8")
+
+      expect(githubEnv).toContain("tag_version=mobile/v0.5.7")
+      expect(githubEnv).toContain("platform=mobile")
+      expect(githubEnv).toContain("version=v0.5.7")
+      expect(githubOutput).toContain("tag_version=mobile/v0.5.7")
+      expect(githubOutput).toContain("platform=mobile")
+      expect(githubOutput).toContain("version=v0.5.7")
+    } finally {
+      await rm(repositoryDir, { recursive: true, force: true })
+    }
+  })
+})
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 4b7ba8eac..cd46673d0 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -52,5 +52,10 @@ jobs:
         run: |
           export NODE_OPTIONS="--max_old_space_size=16384"
           npm exec turbo run format:check typecheck lint
+      - name: Run release workflow tests
+        run: >-
+          pnpm exec vitest run
+          .github/scripts/extract-release-info.test.ts
+          .github/scripts/release-workflow-guards.test.ts
       - name: Run test
         run: npm exec turbo run test
diff --git a/.github/workflows/tag.yml b/.github/workflows/tag.yml
index 24f1c7c0a..1d307dcf6 100644
--- a/.github/workflows/tag.yml
+++ b/.github/workflows/tag.yml
@@ -36,7 +36,6 @@ jobs:
       - name: Extract release information
         id: extract_info
         run: .github/scripts/extract-release-info.mjs
-        continue-on-error: true
 
       - name: Expose release outputs
         id: release_info