Friday, Jul 24, 2026
TUI slash commands and AWS Bedrock provider for luca-py
Anurag Verma shipped interactive command pickers to the terminal UI and added AWS Bedrock as the third provider, testing the transport abstraction against a fundamentally different API shape.
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The main work landed in quantized-ai/luca-py across three PRs. First, Verma added TUI slash commands [1] with model and reasoning pickers, all contained in contrib/tui without touching core or client code. The /help command lists every registered command rendered from the registry so it never drifts [2], and /model opens a hierarchical picker to select a provider first, then one of its models, applied together so a provider is never left with a mismatched model.
Second, Verma implemented AWS Bedrock as the third real provider via the Converse API [3]. Unlike the OpenAI and Anthropic providers already in the codebase, Bedrock puts the model id in the URL path rather than the request body, uses binary framing for streaming instead of server-sent events, and fronts multiple model families through a single endpoint. Verma translated the internal block types to the Converse payload format and hoisted the system prompt to a top-level array.
Third, he fixed two display issues in the TUI [4]. Assistant and thinking cells now render markdown via rich.markdown.Markdown instead of showing literal asterisks and backticks, with a _renderable() hook on TranscriptCell handling the transformation while streaming deltas stay plain. He also clipped long tool-call arguments so they do not break the display layout.
Sources
- Add TUI slash commands with model/reasoning pickers (#6) · quantized-ai/luca-py
- Add TUI slash commands with model/reasoning pickers · quantized-ai/luca-py
- Add AWS Bedrock provider via the Converse API (#5) · quantized-ai/luca-py
- Render markdown in cells and clip tool-call args in the TUI (#7) · quantized-ai/luca-py