Configuration Reference

All configuration options for the GitHub Copilot connector.

CopilotSessionOptions

Property	Type	Default	Description
TokenFilePath	string?	null	Explicit path to apps.json or hosts.json
GitHubHost	string	"github.com"	GitHub host for token lookup
DefaultModel	string	"gpt-4o"	Model ID for chat completions
EditorVersion	string	"vscode/1.104.1"	Editor-Version header value
TokenExchangeUrl	string	"https://api.github.com/copilot_internal/v2/token"	Token exchange endpoint
OAuthToken	string?	null	Explicit OAuth token override
DangerouslyDisableSslValidation	bool	false	Disable SSL certificate validation
CustomEndpoint	string?	null	Override API endpoint URL

Environment variables

Variable	Purpose
GITHUB_COPILOT_TOKEN	OAuth token override (skips file lookup)

Token file locations

The connector searches these paths in order:

Windows

1. %LOCALAPPDATA%\github-copilot\apps.json
2. %LOCALAPPDATA%\github-copilot\hosts.json

macOS / Linux

1. ~/.config/github-copilot/apps.json
2. ~/.config/github-copilot/hosts.json

Enterprise configuration

SSL bypass

For networks with SSL inspection proxies:

var options = new CopilotSessionOptions
{
    DangerouslyDisableSslValidation = true
};

Custom endpoint

For GitHub Enterprise Server:

var options = new CopilotSessionOptions
{
    CustomEndpoint = "https://copilot.internal.company.com",
    TokenExchangeUrl = "https://github.internal.company.com/copilot_internal/v2/token"
};

GitHub Enterprise host

var options = new CopilotSessionOptions
{
    GitHubHost = "github.mycompany.com"
};

CLI options (jdcplt)

Flag	Description
--model / -m	Model ID (default: gpt-4o)
--prompt / -p	Single-shot prompt (exits after response)
--system / -s	System prompt
--list-models	List available models and exit
--insecure	Disable SSL validation