We use LangChain prompts — does that work?

Yes. We support raw text, LangChain ChatPromptTemplate, and Anthropic message format out of the box.

What if a prompt change breaks evals?

CI fails the PR. The author sees a diff of which eval cases regressed and by how much.

Services·automation

Standard engagement

Prompt & Eval Library Setup

Stop versioning prompts in Notion. Treat them like code.

A one-time install: your prompts versioned in git, evals running in CI, and an A/B harness so prompt changes ship like any other deploy. Two weeks. Hand-off to your team after.

from $3,500

2 weeks

PromptfooBraintrustLangSmithGitHub Actions

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Deliverables

What ships during the engagement.

Prompt repo structure + naming conventions

Eval suite — at least 3 quality dimensions per prompt

GitHub Actions workflow that runs evals on PR

Outcomes

What you walk away with.

Prompts in git with diff history, not in a Notion doc
CI evals on every prompt PR
A/B harness for safe prompt rollouts

“They scoped, shipped, and operated our RAG pipeline in twelve days. Citation accuracy on our eval set landed at 92%, and ongoing tuning costs us less than a Slack seat.”

CTOCo-founder · Fintech · 18 people

FAQ

We use LangChain prompts — does that work?: Yes. We support raw text, LangChain ChatPromptTemplate, and Anthropic message format out of the box.
What if a prompt change breaks evals?: CI fails the PR. The author sees a diff of which eval cases regressed and by how much.

Want to scope Prompt Library?

A short call to confirm fit and timeline.

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