README
¶
Application-owned MCP flags
Despite the historical directory name, this is an MCP server, not a client. It shows how an application can translate its own command-line flags into HyperServe options. HyperServe itself does not parse flags.
Run the HTTP server without MCP:
go run ./examples/mcp-cli
Enable the local-development preset over Streamable HTTP:
go run ./examples/mcp-cli --mcp-dev
Or expose the same server over stdio for a process-supervised MCP host:
go run ./examples/mcp-cli --mcp-dev --mcp-transport=stdio
The application accepts:
| Flag | Purpose |
|---|---|
--mcp-dev |
Local route inspection, status, and log-level tools |
--mcp-observability |
Read-only server health and telemetry resources |
--mcp-transport=http|stdio |
Transport used when a preset is enabled |
--port=8080 |
Optional programmatic override for the listen port |
The important boundary is visible in the code:
if *mcpDev {
configs = append(configs, server.MCPDev())
}
opts = append(opts, server.WithMCPSupport("MyApp", "1.0.0", configs...))
The example explicitly starts with WithEnvironment(), so environment
configuration remains available when flags do not override it:
HS_MCP_ENABLED=true \
HS_MCP_DEV=true \
HS_MCP_SERVER_NAME=MyApp \
go run ./examples/mcp-cli
For stdio, build a stable executable path for the host configuration:
go build -o mcp-flags ./examples/mcp-cli
{
"mcpServers": {
"myapp": {
"command": "/absolute/path/to/mcp-flags",
"args": ["--mcp-dev", "--mcp-transport=stdio"]
}
}
}
Do not expose the development preset on an untrusted network. It permits route inspection and runtime log-level changes. Prefer the observability preset when an operator only needs read-only status.
Documentation
Source Files