From 9d256a11c719f29bdeaa4e9c94dfe0c50f4df13b Mon Sep 17 00:00:00 2001
From: Chris Arderne <chris@trigger.dev>
Date: Mon, 13 Jul 2026 16:43:58 +0100
Subject: [PATCH] fix(cli): hide mutating tools in read-only MCP mode

---
 .changeset/readonly-mcp-mutations.md | 5 +++++
 packages/cli-v3/src/mcp/tools.ts     | 3 +++
 2 files changed, 8 insertions(+)
 create mode 100644 .changeset/readonly-mcp-mutations.md

diff --git a/.changeset/readonly-mcp-mutations.md b/.changeset/readonly-mcp-mutations.md
new file mode 100644
index 00000000000..ad50e7aac19
--- /dev/null
+++ b/.changeset/readonly-mcp-mutations.md
@@ -0,0 +1,5 @@
+---
+"trigger.dev": patch
+---
+
+Hide profile switching and local dev-server process controls when the MCP server runs in read-only mode.
diff --git a/packages/cli-v3/src/mcp/tools.ts b/packages/cli-v3/src/mcp/tools.ts
index 1fe7be6256a..b1c72b83a17 100644
--- a/packages/cli-v3/src/mcp/tools.ts
+++ b/packages/cli-v3/src/mcp/tools.ts
@@ -48,6 +48,9 @@ const WRITE_TOOLS = new Set([
   startAgentChatTool.name,
   sendAgentMessageTool.name,
   closeAgentChatTool.name,
+  switchProfileTool.name,
+  startDevServerTool.name,
+  stopDevServerTool.name,
 ]);
 
 export function registerTools(context: McpContext) {