diff --git a/bin/ccam.js b/bin/ccam.js
index 0d68c01..c368976 100755
--- a/bin/ccam.js
+++ b/bin/ccam.js
@@ -2174,6 +2174,24 @@ async function cmdLanesAgentsInstall(args) {
   console.log(`${c.green("✔")} installed: ${result.installed.join(", ")}`);
 }
 
+/** `ccam lanes mcp sync [<id>] [--cwd path]` — relocate the source repo's
+ *  already-configured MCP servers into <lane>/.mcp.json and seed Chromium
+ *  profiles. Never run automatically; a session calls it explicitly. */
+async function cmdLanesMcpSync(args) {
+  const resolved = await resolveLaneArg(args);
+  if (!resolved) return;
+  const result = await post(`/api/lanes/${resolved.laneId}/mcp/sync`, {}, { allowError: true });
+  if (result.status) {
+    console.error(`✖ mcp sync → ${result.data?.error?.message || result.status}`);
+    process.exitCode = 1;
+    return;
+  }
+  console.log(`${c.green("✔")} synced: ${result.servers.join(", ")}`);
+  if (result.profilesSeeded.length) {
+    console.log(`  seeded profiles: ${result.profilesSeeded.join(", ")}`);
+  }
+}
+
 async function cmdFeatureShow(args) {
   const slug = args.find((arg) => !arg.startsWith("--"));
   if (!slug) {
@@ -2365,6 +2383,11 @@ const COMMAND_GROUPS = [
         "[<id>]",
         "Write the ship-feature-lane agent templates (qc-local, senior-gate-reviewer) into <lane>/.claude/agents/, git-excluded",
       ],
+      [
+        "lanes mcp sync",
+        "[<id>]",
+        "Relocate the source repo's MCP servers into <lane>/.mcp.json and seed Chromium profiles",
+      ],
       [
         "lock status|acquire|release",
         "[<name>] [--holder X] [--timeout N]",
@@ -3186,6 +3209,9 @@ async function runCommand(argv) {
       if (rest[0] === "agents" && rest[1] === "install") {
         return cmdLanesAgentsInstall(rest.slice(2));
       }
+      if (rest[0] === "mcp" && rest[1] === "sync") {
+        return cmdLanesMcpSync(rest.slice(2));
+      }
       return cmdLanes();
     case "lock": {
       const sub = rest[0];