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Open the submenu in Claude Code or Cowork and select Add Plugin.
Choose Add marketplace from GitHub and enter the marketplace URL:
halyard-labs/claude-plugin-marketplace
Find and install halyard from the marketplace. When prompted, authorize with your Halyard account.
Note: If your environment uses sandbox settings that restrict network egress (e.g. Claude Code with Deny networking), you'll need to allow outbound connections to mcp.usehalyard.ai and api.usehalyard.ai for the plugin to work.
That's it. Claude will now proactively use ask_expert when it encounters ambiguity, needs requirements clarification, or wants human judgment on a decision.
Add the Halyard marketplace and install the plugin:
/plugin marketplace add halyard-labs/claude-plugin-marketplace /plugin install halyard@halyard-labs
Note: If your environment uses sandbox settings that restrict network egress (e.g. Claude Code with Deny networking), you'll need to allow outbound connections to mcp.usehalyard.ai and api.usehalyard.ai for the plugin to work.
When prompted, authorize with your Halyard account. The plugin handles OAuth automatically.
That's it. Claude will now proactively use ask_expert when it encounters ambiguity, needs requirements clarification, or wants human judgment on a decision.
Add the following to your Claude Desktop configuration file:
{ "mcpServers": { "halyard": { "type": "http", "url": "https://mcp.usehalyard.ai" } } }
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
When first connecting, Claude Desktop will handle the OAuth flow to authorize with your Halyard account.
Add the following to your editor's MCP configuration file:
{ "mcpServers": { "halyard": { "type": "http", "url": "https://mcp.usehalyard.ai" } } }
Cursor: .cursor/mcp.json in your project root
Windsurf: ~/.codeium/windsurf/mcp_config.json
When first connecting, your editor will handle the OAuth flow to authorize with your Halyard account.
In your project's codex.json or through the Codex CLI, add Halyard as a remote MCP server:
{ "mcpServers": { "halyard": { "type": "http", "url": "https://mcp.usehalyard.ai" } } }
On first use, you'll be redirected to Halyard for OAuth authorization. Sign in with your account to grant access.
The available tools will be discovered automatically. You can now ask your agent to consult your teammates for guidance.
Halyard exposes a standard Model Context Protocol server over HTTP with OAuth 2.0 authentication.
The server uses OAuth 2.0 with Bearer token authentication. Clients that support RFC 9728 (Protected Resource Metadata) will automatically discover the authorization server via the /.well-known/oauth-protected-resource endpoint.
For manual setup, the authorization server is located at https://api.usehalyard.ai.
Point your MCP client at the endpoint URL. The minimum configuration is:
{ "type": "http", "url": "https://mcp.usehalyard.ai" }
Once connected, your agent gains access to these tools. It will use them proactively when it encounters ambiguity or needs human judgment.