deepset-ai / deepset-ai/haystack-core-integrations
Allow custom assistant role message content in request body in AnthropicClaudeAdapter
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- Dominant language
- Python
- Stars
- 203
- Forks
- 332
- Avg merge
- 2d 4h
- Merged PRs (30d)
- 80
Description
Is your feature request related to a problem? Please describe.
I'd like to prefill assistant role message content (as outlined here in Claude's official doc: https://docs.anthropic.com/en/docs/build-with-claude/prompt-engineering/prefill-claudes-response) using AmazonBedrockGenerator component
Describe the solution you'd like
Add additional param in run method of AmazonBedrockGenerator component that allows prefilling custom assistant role message in request body for AnthropicClaudeAdapter using messages api
Current implementation does not allow such behavior. It only allows passing in user prompt but not prefilling Claude response through custom assistant role message content. See https://github.com/deepset-ai/haystack-core-integrations/blob/main/integrations/amazon_bedrock/src/haystack_integrations/components/generators/amazon_bedrock/adapters.py#L135-L148
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the AnthropicClaudeAdapter implementation in integrations/amazon_bedrock/src/haystack_integrations/components/generators/amazon_bedrock/adapters.py, especially lines 135-148, and trace how AmazonBedrockGenerator.run builds the messages request. Done means the run API can pass custom assistant-role content to AnthropicClaudeAdapter through the messages API, while preserving the existing user-prompt behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- aws, python
- Domain
- ai
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100