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@ag-ui/a2ui-toolkit

v0.0.3

Published

4 days ago

Framework-agnostic helpers for building A2UI subagent tools — op builders, prompt assembly, history walkers, and request/envelope orchestration shared across framework adapters.

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@ag-ui/a2ui-toolkit

Framework-agnostic helpers for building A2UI subagent tools.

Each per-framework adapter (LangGraph, ADK, Mastra, …) composes these helpers with its own framework-specific glue: tool decorator, runtime accessor, model binding + invoke. Nothing in this package depends on any agent framework.

Surface

Constants: A2UI_OPERATIONS_KEY, BASIC_CATALOG_ID, DEFAULT_SURFACE_ID, GENERATE_A2UI_TOOL_NAME, GENERATE_A2UI_TOOL_DESCRIPTION, GENERATE_A2UI_ARG_DESCRIPTIONS
Op builders: createSurface, updateComponents, updateDataModel
RENDER_A2UI_TOOL_DEF — JSON schema for the inner structured-output tool
State + history helpers: buildContextPrompt, findPriorSurface
Prompt composer: buildSubagentPrompt
High-level orchestration: prepareA2UIRequest, buildA2UIEnvelope
Output wrappers: assembleOps, wrapAsOperationsEnvelope, wrapErrorEnvelope

See also

The Python counterpart lives in ag-ui-a2ui-toolkit and exposes the same surface in snake_case.