Add validation for gatewayed MCP servers in health check

[Copilot]

Refactored Validation to Use Shell Script

• Create validate_gatewayed_server.sh in actions/setup/sh/
• Refactor gateway.go to invoke shell script instead of inline validation
• Update tests to reflect new implementation
• Verify shell script works correctly
• Recompile all workflows

Changes

New Shell Script: actions/setup/sh/validate_gatewayed_server.sh

• Standalone script that validates a single MCP server is correctly gatewayed
• Takes 3 arguments: SERVER_NAME, MCP_CONFIG_PATH, GATEWAY_URL
• Performs all validation checks:
  • Server exists in config
  • Server has HTTP URL
  • Server type is "http"
  • URL points to gateway

Refactored: pkg/workflow/gateway.go

• Replaced inline validation code (~30 lines per server) with single script invocation
• Much cleaner and more maintainable
• Example: /tmp/gh-aw/actions/validate_gatewayed_server.sh "github" "/home/runner/.copilot/mcp-config.json" "http://localhost:8080"

Updated: pkg/workflow/gateway_test.go

• Tests now validate that the script is invoked correctly
• All tests pass

Before (inline validation)

# Verify github server is gatewayed (has HTTP URL to gateway)
if ! grep -q '"github"' /home/runner/.copilot/mcp-config.json; then
  echo 'ERROR: github server not found in MCP configuration'
  exit 1
fi
github_config=$(jq -r '.mcpServers."github"' /home/runner/.copilot/mcp-config.json)
if [ "$github_config" = "null" ]; then
  echo 'ERROR: github server configuration is null'
  exit 1
fi
# ... 20 more lines ...
echo '✓ github server is correctly gatewayed'

After (shell script invocation)

# Validate github server
/tmp/gh-aw/actions/validate_gatewayed_server.sh "github" "/home/runner/.copilot/mcp-config.json" "http://localhost:8080"

This makes the generated workflow much cleaner and the validation logic easier to maintain and test independently.

Original prompt

Reference: https://github.com/githubnext/gh-aw/actions/runs/20649923074/job/59292946013#step:23:1

Validate that the MCP gateway awmg rewrites the MCP config file with the "gatewayed" servers (GitHub,Serena,playwright). It does not look like it .

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[pelikhan]

@copilot refactor the validation script as a shell script in the actions/setup/sh folder and invoke with arguments.

[Copilot]

@copilot refactor the validation script as a shell script in the actions/setup/sh folder and invoke with arguments.

Refactored the validation to use a shell script in commit 24ab794.

Created actions/setup/sh/validate_gatewayed_server.sh which validates that an MCP server is correctly gatewayed. The script takes 3 arguments (server name, config path, gateway URL) and performs all validation checks.

The generated workflow is now much cleaner - instead of ~30 lines of inline validation per server, it's now a single line:

/tmp/gh-aw/actions/validate_gatewayed_server.sh "github" "/home/runner/.copilot/mcp-config.json" "http://localhost:8080"