diff --git a/.github/workflows/recover-release.yml b/.github/workflows/recover-release.yml
new file mode 100644
index 0000000..12fd011
--- /dev/null
+++ b/.github/workflows/recover-release.yml
@@ -0,0 +1,50 @@
+name: Recover Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Existing release tag to recover, for example v0.10.4'
+        required: true
+        type: string
+
+jobs:
+  recover:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      id-token: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          registry-url: 'https://registry.npmjs.org'
+          cache: 'pnpm'
+
+      - name: Verify recovered tag matches package version
+        env:
+          RELEASE_TAG: ${{ inputs.tag }}
+        run: |
+          node -e "const pkg = require('./package.json'); const expected = 'v' + pkg.version; if (process.env.RELEASE_TAG !== expected) { throw new Error('tag ' + process.env.RELEASE_TAG + ' does not match package version ' + expected); }"
+
+      - run: pnpm install --frozen-lockfile
+
+      - name: Publish missing registry artifacts
+        env:
+          SKIP_NPM_PUBLISH: '1'
+        run: pnpm release:publish
+
+      - name: Create GitHub Release
+        env:
+          GH_TOKEN: ${{ github.token }}
+          RELEASE_TAG: ${{ inputs.tag }}
+        run: |
+          gh release view "$RELEASE_TAG" >/dev/null 2>&1 || \
+            gh release create "$RELEASE_TAG" --verify-tag --generate-notes --title "$RELEASE_TAG"
diff --git a/scripts/release/publish.mjs b/scripts/release/publish.mjs
index 1058bf7..bcc4bf7 100644
--- a/scripts/release/publish.mjs
+++ b/scripts/release/publish.mjs
@@ -18,6 +18,76 @@ function run(cmd, args, options = {}) {
   }
 }
 
+function runForOutput(cmd, args, options = {}) {
+  const result = spawnSync(cmd, args, {
+    encoding: 'utf8',
+    ...options,
+  });
+
+  return {
+    status: result.status ?? 1,
+    stdout: result.stdout ?? '',
+    stderr: result.stderr ?? '',
+    error: result.error,
+  };
+}
+
+function isEnabled(name) {
+  const value = process.env[name];
+  if (!value) {
+    return false;
+  }
+
+  return ['1', 'true', 'yes'].includes(value.toLowerCase());
+}
+
+function packageExistsOnNpm(pkg) {
+  const result = runForOutput('npm', ['view', `${pkg.name}@${pkg.version}`, 'version', '--json']);
+
+  if (result.status === 0) {
+    return result.stdout.includes(pkg.version);
+  }
+
+  const output = `${result.stdout}\n${result.stderr}`;
+  if (output.includes('E404') || output.includes('404 Not Found')) {
+    return false;
+  }
+
+  if (result.error) {
+    throw result.error;
+  }
+
+  throw new Error(`Failed to inspect npm package ${pkg.name}@${pkg.version}: ${output}`);
+}
+
+function parseJsrPackageName(packageName) {
+  const match = /^@([^/]+)\/(.+)$/.exec(packageName);
+  if (!match) {
+    throw new Error(`Invalid JSR package name: ${packageName}`);
+  }
+
+  return {
+    scope: match[1],
+    name: match[2],
+  };
+}
+
+async function packageExistsOnJsr(pkg) {
+  const { scope, name } = parseJsrPackageName(pkg.name);
+  const response = await fetch(`https://jsr.io/@${scope}/${name}/meta.json`);
+
+  if (response.status === 404) {
+    return false;
+  }
+
+  if (!response.ok) {
+    throw new Error(`Failed to inspect JSR package ${pkg.name}: HTTP ${response.status}`);
+  }
+
+  const meta = await response.json();
+  return Object.prototype.hasOwnProperty.call(meta.versions ?? {}, pkg.version);
+}
+
 function runAsync(cmd, args, options = {}) {
   return new Promise((resolve, reject) => {
     const child = spawn(cmd, args, { stdio: 'inherit', ...options });
@@ -85,8 +155,12 @@ async function main() {
 
   const npmToken = process.env.NODE_AUTH_TOKEN || process.env.NPM_TOKEN;
   const useOidc = process.env.GITHUB_ACTIONS === 'true';
+  const skipNpmPublish = isEnabled('SKIP_NPM_PUBLISH');
+  const skipJsrPublish = isEnabled('SKIP_JSR_PUBLISH');
 
-  if (!useOidc && !npmToken) {
+  if (skipNpmPublish) {
+    console.log('Skipping npm publish (SKIP_NPM_PUBLISH is set).');
+  } else if (!useOidc && !npmToken) {
     console.log('Skipping npm publish (no token and not running in GitHub Actions).');
   } else {
     for (const dir of packageDirs) {
@@ -94,6 +168,10 @@ async function main() {
       if (pkg.private) {
         continue;
       }
+      if (packageExistsOnNpm(pkg)) {
+        console.log(`Skipping npm publish for ${pkg.name}@${pkg.version} (already published).`);
+        continue;
+      }
 
       if (useOidc) {
         run('npm', ['publish', '--access', 'public', '--provenance'], { cwd: dir });
@@ -104,11 +182,23 @@ async function main() {
     }
   }
 
+  if (skipJsrPublish) {
+    console.log('Skipping JSR publish (SKIP_JSR_PUBLISH is set).');
+    console.log('Publish complete.');
+    return;
+  }
+
   for (const dir of packageDirs) {
     const jsrPath = path.join(dir, 'jsr.json');
     if (!fs.existsSync(jsrPath)) {
       continue;
     }
+    const pkg = readJson(path.join(dir, 'package.json'));
+    if (await packageExistsOnJsr(pkg)) {
+      console.log(`Skipping JSR publish for ${pkg.name}@${pkg.version} (already published).`);
+      continue;
+    }
+
     const timeoutMs = Number(process.env.JSR_PUBLISH_TIMEOUT_MS ?? 300_000);
     const maxRetries = Number(process.env.JSR_PUBLISH_RETRIES ?? 2);
     let attempt = 0;