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[FEATURE]: Allow to enable MCP on a per-agent basis #5373
Description
Feature hasn't been suggested before.
- I have verified this feature I'm about to request hasn't been suggested before.
Describe the enhancement you want to request
I'm using Playwright MCP server. I'd like this MCP server to only appear in the context of my scrap agent (and only be usable by my scrap agent too).
I can enable / disable a MCP server globally but I can't enable / disable a MCP server on a per-agent basis.
By default, I'd like the playwright MCP server to be disabled for all my agents (i.e. the MCP server is not in the context at all), and then for my agent scrap, I'd like to enable the playwright MCP server.
I know that there is a "tools" setting globally and per-agent, but this won't disable the MCP server meaning that even though the agent can't use it, it still appears in the context.
Activity
github-actions commentedon Dec 11, 2025
This issue might be a duplicate of existing issues. Please check:
Feel free to ignore if none of these address your specific case.
SamirSaidani commentedon Dec 11, 2025
https://opencode.ai/docs/mcp-servers/#per-agent
Is it helpful ?
rekram1-node commentedon Dec 12, 2025
Uh that's not true
If the tool is disabled it will NOT appear in context
paralin commentedon Dec 12, 2025
#5339
lcswillems commentedon Dec 12, 2025
@paralin How is your PR addressing the issue? It seems the flag is just equivalent to setting the tools in the config, no? Doesn't seem to address the concern with the config. And personally, I would prefer config over flags.
lcswillems commentedon Dec 12, 2025
@rekram1-node I missed your message. When I turn the playwright tools off, the context size reported by OpenCode doesn't decrease. It is only when I disable the MCP that it decreases.
lcswillems commentedon Dec 12, 2025
@rekram1-node I've just tried again:
If I add the playwright MCP in the global config with
"enabled": false, then I can't enable the Playwright tools in my local project. So only way is to enable the playwright MCP in my global config, but now if I disable the tools, the MCP server still gets loaded in the context...Or maybe I'm misunderstanding something.
lcswillems commentedon Dec 12, 2025
@rekram1-node Another option would be:
Allow me to set the Playwright MCP server in the global config with
enabled: false. And then in my local configs, allow me to set it toenabled: true. (without having to set the other fieldstypeandcommand)rekram1-node commentedon Dec 13, 2025
If this is all you are asking for we have a separate issue tracking this and itll be added soon
lcswillems commentedon Dec 13, 2025
@rekram1-node Do you have the link of this other issue? So I could confirm whether it is the same? 🙏
rekram1-node commentedon Dec 17, 2025
Issue:
#4525
there is an Open PR for it that should be merged soon
eXamadeus commentedon Dec 31, 2025
Check out #6306. This is a configuration issue. It works, you just need wildcards.
feat(opencode-fork): per-session mcpAllowlist tool-schema gate [mcp-s…