Adding default toolset as configuration

[tonytrg]

Context

As we now introduce default toolsets, we want to enable the workflow to quickly add specific toolsets to the current experience.

Right now this requires copying and recreating the default toolset and adding the specific toolsets.
To make it easier to configure we allow the additional special toolset default.

Changes

• introduced default toolset
• we clean up the provided toolset list from the passed args/envs to make the tool selection logic cleaner and more predictable
• introduces tests
• adds warning that invalid toolsets were passed

2025-10-15 17:52:32.186 [warning] [server stderr] Invalid toolsets ignored: actionss, test

• updates the cli help message

go run cmd/github-mcp-server/main.go --help
A GitHub MCP server that handles various tools and resources.

Usage:
  server [command]

Available Commands:
  completion  Generate the autocompletion script for the specified shell
  help        Help about any command
  stdio       Start stdio server

Flags:
      --content-window-size int   Specify the content window size (default 5000)
      --dynamic-toolsets          Enable dynamic toolsets
      --enable-command-logging    When enabled, the server will log all command requests and responses to the log file
      --export-translations       Save translations to a JSON file
      --gh-host string            Specify the GitHub hostname (for GitHub Enterprise etc.)
  -h, --help                      help for server
      --log-file string           Path to log file
      --read-only                 Restrict the server to read-only operations
      --toolsets strings          Comma-separated list of tool groups to enable (no spaces).
                                  Available: context, repos, issues, pull_requests, users, orgs, actions,
                                             code_security, secret_protection, dependabot, notifications,
                                             experiments, discussions, gists, security_advisories, projects,
                                             stargazers, dynamic, labels
                                  Special toolset keywords:
                                    - all: Enables all available toolsets
                                    - default: Enables the default toolset configuration of:
                                             context, repos, issues, pull_requests, users
                                  Examples:
                                    - --toolsets=actions,gists,notifications
                                    - Default + additional: --toolsets=default,actions,gists
                                    - All tools: --toolsets=all
  -v, --version                   version for server

Use "server [command] --help" for more information about a command.

Closes:

[Copilot]

Pull Request Overview

This PR introduces a special "default" toolset configuration to simplify workflow setup when working with default and additional toolsets. Instead of requiring users to copy and recreate the default toolset and add specific toolsets, they can now use the default keyword to quickly reference the standard configuration.

• Adds a special default toolset keyword that expands to the standard toolset configuration
• Implements cleanToolsets function to handle toolset processing logic including deduplication and special keyword expansion
• Updates CLI help documentation to explain the new special toolset keywords and provide usage examples

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pkg/github/tools.go	Adds metadata for special toolsets and updates help text generation
internal/ghmcp/server.go	Implements cleanToolsets function and integrates it into server initialization
internal/ghmcp/server_test.go	Comprehensive test suite for the cleanToolsets function
cmd/github-mcp-server/main.go	Updates default toolset initialization to use the new default keyword
README.md	Updates documentation to explain special toolsets and usage patterns

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[khondakar1]

Stop all approval request

[khondakar1]

Stop all approval request