awslabs.core-mcp-server: failure to load specific roles

[bspaulding1]

Describe the bug

I initially added environment variables for nearly all roles, and the server would crash. By process of elimination from running on the command line, I found that I had to remove the following roles in order to get the core server to successfully load:

• CONTAINER_ORCHESTRATION=true
• SERVERLESS_ARCHITECTURE=true
• NOSQL_DB_SPECIALIST=true
• MESSAGING_EVENTS=true

Expected Behavior

I expected the core server to be able to load all of the roles without failure

Current Behavior

the mcp server fails to load with a variety of errors depending on which of the culprit roles are included

Reproduction Steps

Run the following for the error, which can be resolved by removing the aforementioned culprits:

FASTMCP_LOG_LEVEL=ERROR
AWS_FOUNDATION=true
DEV_TOOLS=true
CI_CD_DEVOPS=true
CONTAINER_ORCHESTRATION=true
SERVERLESS_ARCHITECTURE=true
ANALYTICS_WAREHOUSE=true
DATA_PLATFORM_ENG=true
FRONTEND_DEV=true
SOLUTIONS_ARCHITECT=true
FINOPS=true
MONITORING_OBSERVABILITY=true
CACHING_PERFORMANCE=true
SECURITY_IDENTITY=true
SQL_DB_SPECIALIST=true
NOSQL_DB_SPECIALIST=true
TIMESERIES_DB_SPECIALIST=true
MESSAGING_EVENTS=true
uvx awslabs.core-mcp-server@latest

Possible Solution

No response

Additional Information/Context

No response

OS

macOS Sequoia 15.7.1

Server

core-mcp-server

Server Version

1.0.0

Region experiencing the issue

n/a - local machine

Other information

No response

Service quota

• I have reviewed the service quotas for this construct