mirror of
https://github.com/NVIDIA-NeMo/DataDesigner
synced 2026-05-24 09:48:29 +00:00
8b79b21298
Preserves tree from previous docs-website head: 5e47d33ea8. This branch is a CI-managed publish artifact like gh-pages; source provenance is tracked in commit messages rather than Git ancestry.
94 lines
2.9 KiB
Markdown
94 lines
2.9 KiB
Markdown
# Engine MCP
|
|
|
|
Execution-time MCP registries, facades, session handling, schema discovery, and tool calls.
|
|
|
|
For user-facing provider and tool config objects, see [MCP configuration](../config/mcp.md).
|
|
|
|
## Parallel Structure
|
|
|
|
| Model layer | MCP layer | Purpose |
|
|
|-------------|-----------|---------|
|
|
| `ModelProviderRegistry` | `MCPProviderRegistry` | Holds provider configurations. |
|
|
| `ModelRegistry` | `MCPRegistry` | Manages configs by alias and lazily creates facades. |
|
|
| `ModelFacade` | `MCPFacade` | Provides a lightweight runtime facade scoped to one config. |
|
|
| `ModelConfig.alias` | `ToolConfig.tool_alias` | Alias referenced by column configs. |
|
|
|
|
## Registry
|
|
|
|
### `MCPToolDefinition` {#data_designer.engine.mcp.registry.MCPToolDefinition}
|
|
|
|
::: data_designer.engine.mcp.registry.MCPToolDefinition
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
### `MCPToolResult` {#data_designer.engine.mcp.registry.MCPToolResult}
|
|
|
|
::: data_designer.engine.mcp.registry.MCPToolResult
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
### `MCPRegistry` {#data_designer.engine.mcp.registry.MCPRegistry}
|
|
|
|
::: data_designer.engine.mcp.registry.MCPRegistry
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
### `create_mcp_registry` {#data_designer.engine.mcp.factory.create_mcp_registry}
|
|
|
|
::: data_designer.engine.mcp.factory.create_mcp_registry
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
## Facade
|
|
|
|
`ModelFacade.generate()` accepts a `tool_alias` parameter. When it is provided, `ModelFacade` looks up the matching `MCPFacade` from `MCPRegistry`, fetches tool schemas, passes them to the model, processes tool calls after each completion, tracks tool-call turns, and returns messages that include tool results for trace capture.
|
|
|
|
### `MCPFacade` {#data_designer.engine.mcp.facade.MCPFacade}
|
|
|
|
::: data_designer.engine.mcp.facade.MCPFacade
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
## I/O Service
|
|
|
|
The I/O service owns a background event loop, pools MCP sessions by provider config, coalesces concurrent tool schema lookups, and executes parallel tool calls.
|
|
|
|
### `MCPIOService` {#data_designer.engine.mcp.io.MCPIOService}
|
|
|
|
::: data_designer.engine.mcp.io.MCPIOService
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
### Runtime Helpers
|
|
|
|
::: data_designer.engine.mcp.io.list_tools
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
::: data_designer.engine.mcp.io.list_tool_names
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
::: data_designer.engine.mcp.io.call_tools
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
::: data_designer.engine.mcp.io.clear_provider_caches
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
::: data_designer.engine.mcp.io.clear_tools_cache
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
::: data_designer.engine.mcp.io.get_cache_info
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
::: data_designer.engine.mcp.io.clear_session_pool
|
|
options:
|
|
show_root_toc_entry: false
|
|
|
|
::: data_designer.engine.mcp.io.get_session_pool_info
|
|
options:
|
|
show_root_toc_entry: false
|