aichat 0.20.0

[BrewTestBot]

Created by brew bump

---

Created with brew bump-formula-pr.

release notes

## Patch Client API
AIChat supports patching API request url, headers and body.
For example, we can patch claude:claude-3-5-sonnet-20240620 to use beta 8192 output tokens.
clients:
  - type: claude
    ...
    patch:                                # Patch api request
      chat_completions:                   # Api type, one of chat_completions, embeddings, and rerank
        'claude-3-5-sonnet-20240620':     # The regex to match model names, e.g. '.*' 'gpt-4o' 'gpt-4o|gpt-4-.*'
          headers:
            anthropic-beta: max-tokens-3-5-sonnet-2024-07-15
          body:
            max_tokens: 8192
More flexible using tools
AIChat introduces the use_tools configuration to manage which tools are included. This configuration works across global, role, session, and agent levels.

AIChat also introduces mapping_tools for managing aliases for a tool or toolset.
mapping_tools:
  fs: 'fs_cat,fs_ls,fs_mkdir,fs_rm,fs_write'
use_tools: 'execute_command,fs'
Configuration Changes
- buffer_editor: null
+ editor: null

- dangerously_functions_filter: null
- agents:
-   - name: todo
-     ...
The tool determines whether the operation is dangerous and whether to ask for confirmation, the dangerously_functions_filter is unnecessary.
Each AI agent has its own config.yaml file, there is no need for a central agents configuration.
Enviroment Variables Changes


AIChat supports env file (<aichat-config-dir>/.env) for managing environment variables.


All config items have related environment variables to override their values.

For example, we can use AICHAT_MODEL to override the default LLM and AICHAT_LIGHT_THEME to switch to light theme.



AIChat Supports env AICHAT_PATCH_{client}_CHAT_COMPLETIONS for patching chat completions api request url, headers and body.

For example, set AICHAT_PATCH_OPENAI_CHAT_COMPLETIONS='{"gpt-4o":{"body":{"seed":666,"temperature":0}}}' to make gpt-4o more deterministic.



Client Changes

vertexai client supports cluade/mistral models, vertexai-claude client was abandoned.
bedrock client switch to converse api, supports llama3.1/mistral-large-v2/cohere.command-r models.
rag-dedicated client was abandoned, use openai-compatible client instead.

CLI Changes
-  -w, --wrap <WRAP>          Control text wrapping (no, auto, <max-width>)
-  -H, --no-highlight         Turn off syntax highlighting
-      --light-theme          Use light theme

Use environment variables AICHAT_WRAP, AICHAT_HIGHLIGHT and AICHAT_LIGHT_THEME instead.

New REPL Commands
.variable <name> <value>
.set stream false
.set use_tools <tools>

New Features

load env vars from file (#685)
enhenced flexibility for use tools (#688)
agent can reuse tools (#690)
support agent variables (#692)
--file/.file can load dirs (#693)
adjust the way of obtaining function call results (#695)
webui supports text to speech for messages (#712)
enhance logger (#731)
move agent config to separate file (#741)
webui add autofocus to chat-input in textarea (#742)
merge vertexai-cluade with vertexai (#745)
vertexai support mistral models (#746)
ollama support tools and new embeddings api (#748)
all config fields have related environment variables (#751)
bedrock client switch to converse api and support cohere models (#747)
support patching request url, headers and body (#756)
abandon rag_dedicated client and improve (#757)
abandon cli options --wrap, --no-highlight and --light-theme (#758)
add config.stream and .set stream repl command (#759)
export agent variable as LLM_AGENT_VAR_* (#766)
add agent-scoped agent_prelude config (#770)
rename config.buffer_editor to config.editor (#773)

Bug Fixes

.starter tab completion (#709)
webui input-panel exceeds viewpoint on mobile (#714)
problem with input token limit (#737)
invalid tool_calls of qianwen client (#740)
unable to rebuild agent rag (#763)

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