diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cbc957c7..9d016ae4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,6 +5,9 @@ on:
   push:
     branches: [main]
 
+permissions:
+  contents: read
+
 jobs:
   gates:
     runs-on: ubuntu-latest
@@ -56,3 +59,12 @@ jobs:
       - name: Production quality gate
         working-directory: ./frontend
         run: npm run check:quality
+
+  release:
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    needs: [gates, controller, frontend]
+    permissions:
+      contents: write
+      issues: write
+      pull-requests: write
+    uses: ./.github/workflows/release.yml
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6ccdce00..6f34cee8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,39 +1,47 @@
 name: Release
 
 on:
-  workflow_run:
-    workflows: [CI]
-    types: [completed]
-    branches: [main]
+  workflow_call:
+
+concurrency:
+  group: release-${{ github.ref }}
+  cancel-in-progress: false
+  queue: max
 
 permissions:
-  contents: write
-  issues: write
-  pull-requests: write
+  contents: read
 
 jobs:
   release:
-    if: github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.event == 'push'
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      issues: write
+      pull-requests: write
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-          ref: ${{ github.event.workflow_run.head_sha }}
-
-      - name: Select tested main revision
-        run: git checkout -B main "${{ github.event.workflow_run.head_sha }}"
+          ref: ${{ github.sha }}
 
       - uses: actions/setup-node@v4
         with:
           node-version: 22.19.0
 
+      - name: Verify tested main revision
+        id: revision
+        env:
+          TESTED_SHA: ${{ github.sha }}
+        run: node scripts/release-revision.mjs
+
       - name: Configure git author
+        if: steps.revision.outputs.current == 'true'
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
 
       - name: Release
+        if: steps.revision.outputs.current == 'true'
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
diff --git a/frontend/package.json b/frontend/package.json
index 8f191762..c6009aac 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -23,6 +23,7 @@
     "check:deadcode": "knip",
     "check:dupes": "jscpd src",
     "check:cleanup": "npm run check:deadcode && npm run check:dupes && npm run depcheck",
+    "check:release-workflow": "node --test scripts/release-workflow.test.mjs",
     "check:ui-structure": "node scripts/validate-ui-structure.mjs",
     "check:fix": "knip --fix",
     "desktop:build:main": "tsc -p desktop/tsconfig.json",
@@ -38,7 +39,7 @@
     "typecheck": "tsc --noEmit",
     "typecheck:desktop": "tsc -p desktop/tsconfig.json",
     "check:cycles": "madge --extensions ts,tsx --circular src",
-    "check:static": "npm run lint && npm run typecheck && npm run typecheck:desktop && npm run check:cycles && npm run check:ui-structure",
+    "check:static": "npm run lint && npm run typecheck && npm run typecheck:desktop && npm run check:cycles && npm run check:release-workflow && npm run check:ui-structure",
     "check:quality": "node scripts/validate-package-json.mjs && npm run check:static && npm run check:cleanup && npm run build",
     "precommit": "lint-staged --config .lintstagedrc.json && npm run typecheck"
   },
diff --git a/frontend/scripts/release-workflow.test.mjs b/frontend/scripts/release-workflow.test.mjs
new file mode 100644
index 00000000..47c89860
--- /dev/null
+++ b/frontend/scripts/release-workflow.test.mjs
@@ -0,0 +1,86 @@
+import assert from "node:assert/strict";
+import { readFileSync } from "node:fs";
+import { test } from "node:test";
+import { resolve } from "node:path";
+import { parse } from "yaml";
+import { releaseRevisionIsCurrent } from "../../scripts/release-revision.mjs";
+
+const repository = resolve(import.meta.dirname, "../..");
+
+function workflow(name) {
+  return parse(readFileSync(resolve(repository, ".github/workflows", name), "utf8"));
+}
+
+function concurrencyOrder(running, pending, queue) {
+  return [running, ...(queue === "max" ? pending : pending.slice(-1))];
+}
+
+test("rejects an older release that enters after a newer revision", () => {
+  const older = "a".repeat(40);
+  const newer = "b".repeat(40);
+  const acquired = [
+    [newer, newer, newer],
+    [older, older, newer],
+  ];
+  assert.deepEqual(
+    acquired.filter((entry) => releaseRevisionIsCurrent(...entry)).map(([tested]) => tested),
+    [newer],
+  );
+  assert.deepEqual(
+    [
+      [older, older, older],
+      [newer, newer, newer],
+    ]
+      .filter((entry) => releaseRevisionIsCurrent(...entry))
+      .map(([tested]) => tested),
+    [older, newer],
+  );
+});
+
+test("preserves a pending current release when a stale run enters third", () => {
+  const release = workflow("release.yml");
+  const running = "c".repeat(40);
+  const current = "b".repeat(40);
+  const stale = "a".repeat(40);
+  const acquired = concurrencyOrder(running, [current, stale], release.concurrency.queue);
+  assert.deepEqual(acquired, [running, current, stale]);
+  assert.deepEqual(
+    acquired
+      .slice(1)
+      .filter((tested) => releaseRevisionIsCurrent(tested, tested, current)),
+    [current],
+  );
+});
+
+test("binds release publication and write permissions to the tested revision", () => {
+  const ci = workflow("ci.yml");
+  const release = workflow("release.yml");
+  const checkout = release.jobs.release.steps.find((step) => step.uses === "actions/checkout@v4");
+  const revision = release.jobs.release.steps.find((step) => step.id === "revision");
+  const publication = release.jobs.release.steps.find((step) =>
+    String(step.run ?? "").includes("semantic-release"),
+  );
+  assert.deepEqual(ci.permissions, { contents: "read" });
+  assert.deepEqual(ci.jobs.release.needs, ["gates", "controller", "frontend"]);
+  assert.deepEqual(ci.jobs.release.permissions, {
+    contents: "write",
+    issues: "write",
+    "pull-requests": "write",
+  });
+  assert.deepEqual(release.permissions, { contents: "read" });
+  assert.deepEqual(release.concurrency, {
+    group: "release-${{ github.ref }}",
+    "cancel-in-progress": false,
+    queue: "max",
+  });
+  assert.deepEqual(release.jobs.release.permissions, {
+    contents: "write",
+    issues: "write",
+    "pull-requests": "write",
+  });
+  assert.equal(checkout.with.ref, "${{ github.sha }}");
+  assert.equal(revision.env.TESTED_SHA, "${{ github.sha }}");
+  assert.equal(revision.run, "node scripts/release-revision.mjs");
+  assert.ok(release.jobs.release.steps.indexOf(revision) < release.jobs.release.steps.indexOf(publication));
+  assert.equal(publication.if, "steps.revision.outputs.current == 'true'");
+});
diff --git a/scripts/release-revision.mjs b/scripts/release-revision.mjs
new file mode 100644
index 00000000..4e8f5a4b
--- /dev/null
+++ b/scripts/release-revision.mjs
@@ -0,0 +1,50 @@
+#!/usr/bin/env node
+import { execFileSync } from "node:child_process";
+import { appendFileSync } from "node:fs";
+import { resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const revisionPattern = /^[0-9a-f]{40}$/;
+
+function verifiedRevision(revision) {
+  const value = String(revision ?? "").trim();
+  if (!revisionPattern.test(value)) throw new Error("Release revision is invalid");
+  return value;
+}
+
+export function releaseRevisionIsCurrent(tested, checkedOut, currentMain) {
+  const expected = verifiedRevision(tested);
+  return expected === verifiedRevision(checkedOut) && expected === verifiedRevision(currentMain);
+}
+
+function gitOutput(args) {
+  return execFileSync("git", args, { encoding: "utf8" }).trim();
+}
+
+function currentMainRevision() {
+  execFileSync(
+    "git",
+    ["fetch", "--no-tags", "origin", "+refs/heads/main:refs/remotes/origin/main"],
+    { stdio: "inherit" },
+  );
+  return gitOutput(["rev-parse", "refs/remotes/origin/main"]);
+}
+
+function publishRevisionState(environment = process.env) {
+  const output = environment.GITHUB_OUTPUT?.trim();
+  if (!output) throw new Error("Release output destination is unavailable");
+  const tested = verifiedRevision(environment.TESTED_SHA);
+  const checkedOut = gitOutput(["rev-parse", "HEAD"]);
+  const currentMain = currentMainRevision();
+  const current = releaseRevisionIsCurrent(tested, checkedOut, currentMain);
+  appendFileSync(output, `current=${current}\n`);
+  console.log(
+    current
+      ? `Release revision ${tested} is current`
+      : `Skipping stale release revision ${tested}; current main is ${currentMain}`,
+  );
+}
+
+if (process.argv[1] && resolve(process.argv[1]) === fileURLToPath(import.meta.url)) {
+  publishRevisionState();
+}