valknar/llmx
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[MCP] Add configuration options to enable or disable specific tools (#5367)

Browse Source 
Some MCP servers expose a lot of tools. In those cases, it is reasonable
to allow/denylist tools for Codex to use so it doesn't get overwhelmed
with too many tools.

The new configuration options available in the `mcp_server` toml table
are:
* `enabled_tools`
* `disabled_tools`

Fixes #4796
This commit is contained in:
Gabriel Peal
2025-10-20 15:35:36 -07:00
committed by GitHub
parent c37469b5ba
commit 740b4a95f4
8 changed files with 361 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
docs/config.md
View File

@@ -441,8 +441,14 @@ startup_timeout_sec = 20
tool_timeout_sec = 30
# Optional: disable a server without removing it
enabled = false
# Optional: only expose a subset of tools from this server
enabled_tools = ["search", "summarize"]
# Optional: hide specific tools (applied after `enabled_tools`, if set)
disabled_tools = ["search"]
```
When both `enabled_tools` and `disabled_tools` are specified, Codex first restricts the server to the allow-list and then removes any tools that appear in the deny-list.
#### Experimental RMCP client
Codex is transitioning to the [official Rust MCP SDK](https://github.com/modelcontextprotocol/rust-sdk).
@@ -871,6 +877,8 @@ If `forced_chatgpt_workspace_id` is set but `forced_login_method` is not set, AP
| `mcp_servers.<id>.enabled` | boolean | When false, Codex skips starting the server (default: true). |
| `mcp_servers.<id>.startup_timeout_sec` | number | Startup timeout in seconds (default: 10). Timeout is applied both for initializing MCP server and initially listing tools. |
| `mcp_servers.<id>.tool_timeout_sec` | number | Per-tool timeout in seconds (default: 60). Accepts fractional values; omit to use the default. |
| `mcp_servers.<id>.enabled_tools` | array<string> | Restrict the server to the listed tool names. |
| `mcp_servers.<id>.disabled_tools` | array<string> | Remove the listed tool names after applying `enabled_tools`, if any. |
| `model_providers.<id>.name` | string | Display name. |
| `model_providers.<id>.base_url` | string | API base URL. |
| `model_providers.<id>.env_key` | string | Env var for API key. |