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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

0.4.0 - 2026-07-04

Changed:

  • Run MCP tool subprocesses in a worker thread to avoid blocking the async server

Added:

  • Set the PYCLI_MCP_USER_AGENT environment variable from the per-request HTTP User-Agent when running commands

Fixed:

  • Fix support for recent Typer releases, including Typer-injected completion options, tuple-valued parameters, Path parameters with strict type checking, and command objects returned by typer.main.get_command()
  • Fix argparse usage extraction on Python 3.14 by disabling colored terminal output while formatting usage

0.3.0 - 2025-06-30

Added:

  • Add support for Typer
  • Add support for Argparse
  • Always set the PYCLI_MCP_TOOL_NAME environment variable when running commands
  • Add support for referring to a callable object that returns a command

0.2.0 - 2025-06-28

Changed:

  • Rename the project to pycli-mcp
  • Rename ClickCommandQuery to CommandQuery
  • Rename ClickMCPServer to CommandMCPServer

0.1.0 - 2025-06-26

Changed:

  • The default aggregation level is now root

Added:

  • Add support for controlling the level of command aggregation
  • Increase verbosity of the CLI

Fixed:

  • Server errors now properly return the content of the command's stderr

0.0.2 - 2025-06-24

Added:

  • Add support for customizing the root command name
  • Add support for more option types
  • Add support for strict type checking

Fixed:

  • Fix options with dynamic default values
  • The CLI now errors for specs that don't refer to a Click command object

0.0.1 - 2025-06-24

This is the initial public release.