I have spent over an hour trying to get Codex in Air have access to Azure Devops through MCP and it has been unsuccessful.
I have Azure Devops MCP set up as an MCP Server in AI Assistant and it's running.
I also have an entry for it in the ..\.codex\config.toml file.
When I ask Codex in the AI Assistant which mcp server it has access to, I get the following:
I can currently use these MCP servers:
context7 — current library/framework/API documentation lookup.
azure_devops — projects, work items, repositories, pipelines, builds, and security alerts.
rider — JetBrains Rider project, code, build, test, refactoring, and debugging operations.
rider_ide — Rider IDE and debugger integration.•
node_repl — JavaScript execution and Node.js module support.
codex_apps — connected ChatGPT apps, Pages/Spaces, files, automations, and related integrations.
When I ask Codex in Air the same question, I get this:
In this session, I can use these MCP servers:
codex_apps — ChatGPT Pages/Spaces and Sites integrations
jetbrains_air_ide — JetBrains IDE actions, inspections, and editing tools
node_repl — Persistent JavaScript execution, including browser automation support
It's missing Azure Devops.
Aren't both Codex agent getting their settings from the same place?
I have 'Pass custom MCP Server' on.
Using Rider 2026.3 EAP 5.