diff --git a/README.md b/README.md
index 2662574..794b2ce 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 A swarm intelligence prediction engine. Upload documents describing any scenario, and MiroFish simulates thousands of AI agents reacting on social media to predict how events will unfold.
 
 **Live:** [synth.scty.org](https://synth.scty.org)
+**Discord:** [discord.gg/ePf5aPaHnA](https://discord.gg/ePf5aPaHnA)
 
 > Fork of [666ghj/MiroFish](https://github.com/666ghj/MiroFish) — fully translated to English, local graph storage with embedded KuzuDB by default, Claude/Codex CLI support added.
 
diff --git a/backend/tests/test_llm_client.py b/backend/tests/test_llm_client.py
new file mode 100644
index 0000000..0ec1f86
--- /dev/null
+++ b/backend/tests/test_llm_client.py
@@ -0,0 +1,26 @@
+import sys
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
+
+from app.utils.llm_client import LLMClient
+
+
+def test_clean_content_strips_think_tags():
+    client = object.__new__(LLMClient)
+
+    cleaned = LLMClient._clean_content(
+        client,
+        '<think>hidden reasoning</think>\n{"status": "ok"}',
+    )
+
+    assert cleaned == '{"status": "ok"}'
+
+
+def test_chat_json_accepts_markdown_fenced_json():
+    client = object.__new__(LLMClient)
+    client.chat = lambda **kwargs: '```json\n{"status": "ok"}\n```'
+
+    payload = LLMClient.chat_json(client, messages=[])
+
+    assert payload == {"status": "ok"}
diff --git a/package.json b/package.json
index 63ace21..d27bf82 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,8 @@
     "dev": "concurrently --kill-others -n \"backend,frontend\" -c \"green,cyan\" \"npm run backend\" \"npm run frontend\"",
     "backend": "cd backend && uv run python run.py",
     "frontend": "cd frontend && npm run dev",
-    "build": "cd frontend && npm run build"
+    "build": "cd frontend && npm run build",
+    "lint": "node scripts/lint.mjs"
   },
   "devDependencies": {
     "concurrently": "^9.1.2"
diff --git a/scripts/lint.mjs b/scripts/lint.mjs
new file mode 100644
index 0000000..be982ec
--- /dev/null
+++ b/scripts/lint.mjs
@@ -0,0 +1,38 @@
+import { spawnSync } from 'node:child_process';
+
+const shouldFix = process.argv.includes('--fix');
+const npmCommand = process.platform === 'win32' ? 'npm.cmd' : 'npm';
+
+if (shouldFix) {
+  console.log('No auto-fixers are configured; running verification checks only.');
+}
+
+const commands = [
+  {
+    cmd: npmCommand,
+    args: ['run', 'build', '--prefix', 'frontend'],
+  },
+  {
+    cmd: 'uv',
+    args: ['run', 'pytest', 'tests'],
+    cwd: 'backend',
+    env: {
+      UV_CACHE_DIR: '/tmp/uv-cache',
+    },
+  },
+];
+
+for (const command of commands) {
+  const result = spawnSync(command.cmd, command.args, {
+    cwd: command.cwd,
+    env: {
+      ...process.env,
+      ...command.env,
+    },
+    stdio: 'inherit',
+  });
+
+  if (result.status !== 0) {
+    process.exit(result.status ?? 1);
+  }
+}