{"version":"2.1.182","anchor":"mcp-per-server-permission-mode-override-control-channel","canonical_anchor":"mcp-per-server-permission-mode-override-control-channel","heading":"MCP Per-Server Permission Mode Override (Control Channel)","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.182\/e\/mcp-per-server-permission-mode-override-control-channel","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.182","markdown":"### MCP Per-Server Permission Mode Override (Control Channel)\n\nThe MCP control channel now supports a tighten-only per-server permission mode override. Orchestration layers can downgrade specific MCP server permissions to `'default'` (or clear the override with `null`) without a full session restart. Escalation attempts (e.g., setting `'auto'`) are rejected:\n\n`Permission mode override over the control channel is tighten-only ('default' or null); rejected 'auto'`\n\n**Evidence**\n\nNew `Qta()` function \u2014 search for `\"set_mcp_permission_mode_override\"` and `\"tighten-only\"`"}