[BOT ISSUE] Cohere TypeScript SDK (`cohere-ai`) not instrumented — no tracing for direct Cohere chat, embed, or rerank calls

[braintrust-bot]

Summary

The Cohere TypeScript SDK (cohere-ai) provides execution APIs for chat completions, embeddings, and reranking with a unique, non-OpenAI-compatible interface. This repository has zero instrumentation for any Cohere SDK surface — no wrapper, no channels, no plugin, no auto-instrumentation config. Users who call the Cohere SDK directly get no Braintrust spans.

What instrumentation is missing

The cohere-ai npm package (~270K–370K weekly downloads) exposes these execution surfaces, none of which are instrumented:

SDK Method	Description
client.chat()	Text generation / chat completions
client.chatStream()	Streaming chat completions
client.embed()	Text and image embeddings
client.rerank()	Reranking documents by relevance

The Cohere API is not OpenAI-compatible — it has its own request/response schemas, tool-calling format, citation/grounding system, and streaming protocol. Users cannot use wrapOpenAI() with a Cohere base URL.

No coverage in any instrumentation layer:

• No wrapper function (e.g. wrapCohere())
• No diagnostics channels for Cohere methods
• No plugin handler in js/src/instrumentation/plugins/
• No auto-instrumentation config in js/src/auto-instrumentations/configs/
• No vendor SDK types in js/src/vendor-sdk-types/
• No e2e test scenarios

A grep for cohere (case-insensitive) across js/src/ returns zero matches. The only references in the repo are @ai-sdk/cohere in an example project's package.json, which is a Vercel AI SDK provider adapter — not direct Cohere SDK instrumentation.

Indirect coverage exists but is limited:

Users can access Cohere models through the Vercel AI SDK (@ai-sdk/cohere) or LangChain (@langchain/cohere), both of which are instrumented. However, users who use the official cohere-ai SDK directly — which is the primary SDK documented by Cohere — get no tracing.

Context

This repo instruments 7 other AI provider SDKs directly: OpenAI, Anthropic, Google GenAI, Mistral, OpenRouter, Vercel AI SDK, and Claude Agent SDK. Cohere is a comparable provider with a stable, actively maintained official TypeScript SDK and a unique API surface.

Braintrust docs status

not_found — Cohere is not mentioned on the Braintrust tracing docs at https://www.braintrust.dev/docs/guides/tracing or the wrap-providers page at https://www.braintrust.dev/docs/instrument/wrap-providers.

Upstream references

• Cohere TypeScript SDK: https://github.com/cohere-ai/cohere-typescript
• npm package: https://www.npmjs.com/package/cohere-ai
• Cohere API v2 docs: https://docs.cohere.com/v2/reference/chat
• Cohere changelog: https://docs.cohere.com/changelog

Local files inspected

• js/src/wrappers/ — no Cohere wrapper
• js/src/instrumentation/plugins/ — no Cohere channels or plugin
• js/src/auto-instrumentations/configs/ — no Cohere config
• js/src/vendor-sdk-types/ — no Cohere types
• e2e/scenarios/ — no Cohere test scenarios
• js/examples/ai-sdk/next-openai-app/package.json — only reference is @ai-sdk/cohere (AI SDK adapter, not direct SDK)