Release Third Release · andygill/haverscript

Haverscript is a language for building LLM-based agents, providing a flexible
and composable way to interact with large language models.

[0.3.0] - 2025-02-26

Initial agentic support. An Agent is a python class that has access to an LLM.
Markdown, a simple DSL for building markdown-style prompts.
tools argument for Model.chat, that supplies function-calling callbacks.
format now supports standard types such as list[int] and bool for stuctured output.
echo middleware now takes an optional stream parameter, defaulting to True.
Model.compress() can remove older chat calls from the history, reducing context sizes.
connect_chatbot which promotes a chatbot into a Model.
Model.ask() which is a one-shot Model.chat() that returns dynamic content.
Reply.informational and Reply.pure generate specific Reply objects.
ChatBot class for wrapping up pseudo LLMs (or agents acting like LLMs).

dedent has stubed out (has no effect). This has been replaced by Markdown support.
meta middleware is removed, and has been replaced by ChatBot.

Internally, resolve refs from JSON schemas in format (this works around an ollama bug)
Model and Response are now pydantic classes.
retry() now takes a simple retry count, and no longer uses the tenacity package.