Skip to main content
Applicable to: Users who save Prompts in TrueFoundry with MCP servers configured within them. If you do not save MCP server references inside your prompts, this change does not affect you.

​
What Is Changing

We are deprecating support for adding MCP servers directly within prompts. This capability will be removed in an upcoming release and is a breaking change. Once support is removed, any prompts that include mcp_servers will stop working as expected.

​
What You Need to Do

1

Audit existing prompts

Review all current prompts for MCP server dependencies (mcp_servers field).
2

Create updated prompts

Recreate affected prompts without mcp_servers.
3

Validate your workflows

Test the updated prompts to ensure your workflows continue to function correctly.

​
Using MCP Servers with Agents

If you still need MCP server functionality in your workflows, you can use Agents instead. Navigate to the Agents tab on the left sidebar and attach MCP servers directly to an agent configuration.
1

Go to the Agents tab

Open the Agents tab from the left sidebar and select MCP Servers from the left panel.
Agents tab with MCP Servers option selected in the left panel
2

Select MCP servers

Choose the MCP servers you want to attach from the available list.
List of available MCP servers to select from
3

Save the agent

Save the agent configuration to apply the MCP server changes.
Saving the agent with MCP servers configured

​
Timeline

MilestoneDate
Deprecation announcement17th April, 2026
Removal of support~30th April 2026 (~v0.142)
We strongly encourage completing your migration well ahead of the removal date to avoid disruptions.
If you have questions or need guidance on migration paths, reach out to support@truefoundry.com — we’re happy to assist.