Engine Entry Rules

Engine entries (type: engine) are bare-metal HTTP implementations - raw sockets, custom parsers, low-level I/O. They are not frameworks and are ranked separately.

What qualifies as an engine

• Raw TCP socket servers with custom HTTP parsing
• Minimal HTTP libraries without routing or middleware
• Direct io_uring or epoll implementations

Rules

• Must implement the endpoint spec correctly
• Must pass the validation suite
• No restrictions on implementation approach
• Ranked separately from framework entries (flagship and emerging)
• Only participates in connection-level tests (baseline, pipelined, limited-conn) and protocol tests (H2, H3, gRPC, WebSocket) by default