Add function calling

Created on 12 June 2025, about 2 months ago

Problem/Motivation

We will release tools/function calling and structured output in the 1.1.x release and all new agents will use this, so its critical to have support for this for Deepseek provider to be usable.

It supports it per https://api-docs.deepseek.com/guides/function_calling and https://api-docs.deepseek.com/guides/json_mode.

There is no official documentation on how to integrate this yet, but you can check how its been implemented in other providers:
https://git.drupalcode.org/project/ai_provider_openai/-/commit/a45a015c3...
https://git.drupalcode.org/project/ai_provider_ollama/-/commit/4fffae6dd...
https://git.drupalcode.org/project/ai_provider_aws_bedrock/-/commit/4b58...
https://git.drupalcode.org/project/ai_provider_anthropic/-/commit/c91a1a...

Proposed resolution

Add support for function calling
If possible add support for Structured Outputs (but this can be a follow up issue, since its not heavily used yet)
Pin to AI equal or over 1.1.0