dummy-mcp-output-server
Generated from plugins/dummy-mcp-output-server/README.md.
Local MCP server for investigating and testing large MCP tool outputs.
The server is intentionally deterministic. It exposes tools that return large text payloads, large error payloads, and multi-block text payloads with stable sentinel markers so clients can inspect truncation behavior.
Run
python -m dummy_mcp_output_server --transport stdio
For manual HTTP testing:
python -m dummy_mcp_output_server --transport streamable-http --port 8775
Tools
large_text_output(size_chars, line_length)large_error_output(size_chars, line_length)multi_block_output(block_count, block_size)
Text payloads include markers such as:
BEGIN_SENTINEL
MIDDLE_SENTINEL
END_SENTINEL