Cannot use MCP server from Power when registry enabled

[caveman-dick]

Before opening, please confirm:

• I have searched for duplicate or closed issues

Operating System

win32

Kiro Version

0.11.130

Bug Description

I have the MCP registry enabled but I cannot use MCP servers from my custom power as it just errors in the log:

2026-04-08 11:45:53.169 [info] Server 'power-watchfinder-development-ado-mcp' excluded by registry-only access mode

But I've already added that using the following block in the registry:

{
   "server": {
       "name": "power-watchfinder-development-ado-mcp",
       "title": "Azure DevOps MCP Server (Power)",
       "description": "MCP server providing Azure DevOps integration for work items, pipelines, and repositories",
       "version": "2.2.2",
       "packages": [
           {
               "registryType": "npm",
               "identifier": "@azure-devops/mcp",
               "transport": {
                   "type": "stdio"
               },
               "packageArguments": [
                   {
                       "type": "positional",
                       "value": "watchfinder"
                   }
               ]
           }
       ]
   }
},

In the chat window it just says the power doesn't have any

Steps to Reproduce

1. Create a custom power that uses an MCP server
2. Create a registry and add that power specific MCP server prefixing with the power name
3. Install the power and try and use the MCP server from the power

Expected Behavior

The MCP server is accessible

Conversation ID

8722dd5a-4273-43e9-acbb-5c58f012db04

Additional Context

No response

[github-actions]

🤖 Potential Duplicate Detected

This issue appears to be similar to:

• #6218: Duplicate MCP server warning fires even when legacy mcp.json copy is disabled (85% similar)
• #6122: Xcode MCP server loads successfully but tools are not available to the agent (85% similar)
• #5930: Kiro one-click service issues with MCP config content (85% similar)
• #5020: AWS Serverless MCP Server fails to initialize - stdio connection closed error (85% similar)

What happens next?

• ⏰ This issue will be automatically closed in 3 days
• 🏷️ If this is not a duplicate, you can prevent automatic closure by adding a comment or reacting with 👎 to this message.
• 💬 Comment on the original issue if you have additional information

Why is this marked as duplicate?
Both issues deal with MCP server configuration problems and registry/access mode conflicts, though the specific symptoms differ slightly

[github-actions]

Thank you for your feedback! 🙏

The 👎 reaction has been noted. The duplicate label has been removed and this issue has been sent back for maintainer review.

A maintainer will review this issue shortly.

[AnilMaktala]

Duplicate of #7433 — MCP servers from Powers blocked by registry-only mode is tracked there.

Closing as duplicate.