{"version":"2.1.307","anchor":"tool-server-tunnel-connections-send-an-x-tunnel-peer-header","canonical_anchor":"tool-server-tunnel-connections-send-an-x-tunnel-peer-header","heading":"Tool-server connections now identify themselves to the server","tier":"internal","area":"Remote Tools","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.307\/e\/tool-server-tunnel-connections-send-an-x-tunnel-peer-header","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.307","markdown":"### Tool-server connections now identify themselves to the server\n\nWhen Claude Code connects as a tool server, its connection now sends the header `x-tunnel-peer: tool-server`\n\n**Unclear.** It is not stated how the tool-server option is switched on.\n\n**What**\n\nWhen the tool-server option is set, the live connection Claude Code opens to the server now carries an extra header, `x-tunnel-peer: tool-server`. A header is a small piece of labelled information sent with a request. Before, the connection sent only the `Authorization` and `x-session-id` headers.\n\n**Why**\n\nThe server can now tell tool-server connections apart from other connections.\n\n- Area: Remote Tools\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 2\/5\n- Scope: individual\n- Heads-up: no"}