What: Plugins can now request user-provided configuration values (API keys, paths, settings) through structured schemas defined in their manifest files.
How to use:
# When adding a plugin that requires configuration:
claude mcp add my-plugin
# If the plugin has user_config requirements, you'll see:
# Configure my-plugin server
# Field 1 of 3: API Key
# [Enter your value]
# Or configure an existing plugin:
claude mcp configure my-plugin server-nameDetails:
- Plugins define
user_configschemas in manifest.json with field types (string, number, boolean, file, directory) - Interactive CLI prompts collect configuration values with validation
- Sensitive fields (API keys, tokens) are masked during input
- Configuration persisted to
~/.claude/userSettings.jsonunderpluginConfigs - Server configs support variable substitution using
${user_config.fieldName}syntax - Validation ensures required fields are provided and types match schema
- Evidence:
CF1()at line 280192,q7B()at line 280048,fOQ()at line 447320