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LLMAgentR 0.3.1 (Upcoming Release - February 2026)

New Features

• Custom Agent Builder API
  Added build_custom_agent() for creating user-defined graph/state-machine agents from custom node functions, static edges, and conditional edges.

• Exported State-Graph Primitives
  Exported StateGraph(), make_node(), make_edge(), make_command(), and interrupt() to support custom workflow construction.

• LangGraph-Style Mermaid Export
  Added compile_graph() and as_mermaid() for Mermaid visualization, including optional subgraph grouping and graph direction control.

• PNG Graph Export Utility
  Added save_mermaid_png() to render Mermaid graph text (or compiled graph objects) into PNG files via Mermaid CLI (mmdc).

• Reusable Code Agent with Builder Pattern
  The build_code_agent() function now supports a builder pattern. If user_input is omitted, the function returns a reusable agent (closure) that can handle multiple queries interactively. This allows for flexible integration in iterative coding workflows, similar to the existing build_researcher_agent().

• Reusable Interpreter Agent
  The build_interpreter_agent() function now also supports a builder pattern. When code_output is omitted, it returns a reusable interpreter function that can process multiple outputs (tables, model results, charts, etc.) on demand. This provides a consistent interface for explaining analysis results dynamically.

Improvements

• Dual Invocation Support
  Users can now call both build_code_agent() and build_interpreter_agent() in two ways:
  1. One-shot mode – Provide the input (e.g., user_input, code_output) for immediate interpretation or code generation.
  2. Builder mode – Omit the input to return a persistent agent function.
• Enhanced Documentation
  The roxygen examples have been expanded to illustrate both usage patterns clearly for both agents, including structured return objects and typical use cases.

Compatibility

• This update is fully backward-compatible. Existing calls to build_code_agent() and build_interpreter_agent() that use the one-shot pattern will continue to work without modification.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.