Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

[0.1.2] - 2026-06-12

Changed

• Repository moved to https://github.com/saschabrink/langchain_prompt — package metadata, docs links, and license now reflect the maintainer's real name.
• CI tests against Elixir 1.19 and 1.20 via the Nix flake dev shells.
• README badges for Hex version, docs, CI status, and license.

Fixed

• Removed an unreachable {:unknown_failure, _} error clause in execute/4 (flagged by Elixir 1.20's type checker; call_adapter/3 already normalizes every adapter result).
• The precommit alias misspelled --warnings-as-errors, so compiler warnings were never treated as errors locally.

0.1.1 - 2026-04-17

Changed

• usage-rules.md — added concrete multi-clause error-handling example at the call site, async: true safety note in the Testing section, and a Don't entry discouraging speculative profile extraction.

0.1.0 - 2026-04-13

Added

• LangchainPrompt.execute/4 — runs a prompt module against an adapter, returning {:ok, result} or a tagged {:error, reason} tuple.
• LangchainPrompt.Prompt behaviour — four-callback contract (set_profile/1, generate_system_prompt/1, generate_user_prompt/1, post_process/2).
• LangchainPrompt.Adapter behaviour — single-callback contract (chat/2) for plugging in any LLM provider.
• LangchainPrompt.Profile struct — pairs an adapter module with its runtime opts.
• LangchainPrompt.Message struct — represents a single conversation turn, supporting plain string content and multimodal content-part lists.
• LangchainPrompt.Attachment struct + from_file!/1 — adapter-agnostic container for binary file data (images, PDFs); infers type and media from file extension.
• LangchainPrompt.Adapters.Langchain — delegates to any elixir-langchain chat model via :chat_module in the profile opts. Handles both plain-string and ContentPart-list responses (covers Google AI, Anthropic, OpenAI, Deepseek, and more).
• LangchainPrompt.Adapters.Test — zero-dependency ExUnit adapter; records calls as process messages, supports on-demand failure via "FAIL_NOW" sentinel.
• LangchainPrompt.TestAssertions — assert_adapter_called/0, assert_adapter_called/1, refute_adapter_called/0 macros for ExUnit.
• LangchainPrompt.Profiles — configurable indirection layer for named execution profiles (config :langchain_prompt, :profiles_impl, MyModule).
• LangchainPrompt.Profiles.TestImpl — test implementation that always returns the Test adapter.