Top-level configuration facade for the SDK.

Provides accessor functions for mock mode and CLI stream module selection, with deprecation handling for legacy keys.

Domain-specific configuration is delegated to sub-modules:

• ClaudeAgentSDK.Config.Timeouts — all timeout values
• ClaudeAgentSDK.Config.Buffers — buffer sizes, truncation
• ClaudeAgentSDK.Config.Auth — auth paths, TTLs, prefixes
• ClaudeAgentSDK.Config.CLI — CLI versions, flags, paths
• ClaudeAgentSDK.Config.Env — environment variable names
• ClaudeAgentSDK.Config.Orchestration — concurrency, retries

Runtime Configuration

Every value can be overridden via config :claude_agent_sdk:

config :claude_agent_sdk, ClaudeAgentSDK.Config.Timeouts,
  client_init_ms: 90_000,
  query_total_ms: 5_400_000

config :claude_agent_sdk, ClaudeAgentSDK.Config.Buffers,
  max_stdout_buffer_bytes: 2_097_152

See the Configuration Internals guide for the complete reference.