Copy prompts, scorers, and datasets across projects

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Summary

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Configuration steps

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Step 1: Reference resources cross-project in the Playground UI

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Step 2: Copy a prompt to another project (editable local copy)

• The prompt header
• A saved version in its Activity tab
• The Prompts table, after selecting one or more prompts

import braintrust

# Get the prompt from source project
source_client = braintrust.init(project="Source Project Name")
source_prompt = source_client.get_prompt("prompt-slug")

# Create copy in target project
target_client = braintrust.init(project="Target Project Name")
target_client.prompts.create(
    name=source_prompt.name,
    slug=source_prompt.slug + "-copy",  # Use different slug to avoid conflicts
    prompt_data=source_prompt.prompt_data,
    description=source_prompt.description,
)

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Step 3: Copy a scorer to another project (editable local copy)

• The scorer header
• A saved version in its Activity tab
• The scorer editor dialog that opens from a scorer selector
• The Scorers table, after selecting one or more scorers

import braintrust

# Get scorer function from source project
source_client = braintrust.init(project="Source Project Name")
scorer_functions = source_client.functions.list()
source_scorer = next(f for f in scorer_functions if f.slug == "scorer-slug")

# Create copy in target project
target_client = braintrust.init(project="Target Project Name")
target_client.functions.create(
    slug=source_scorer.slug + "-copy",
    name=source_scorer.name,
    function_data=source_scorer.function_data,
    function_type="scorer"
)

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Step 4: Export filtered dataset rows and import to target project

1. Open the source dataset in the UI.
2. Apply your SQL filter.
3. Download the filtered subset using the export/download button.
4. In the target project, create or open a dataset and upload the downloaded file.

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Notes

• Cross-project references (Step 1) share the resource — changes in the source project affect all references.
• Steps 2–3 create independent local copies that can be modified without affecting the source.
• You can duplicate up to 100 prompts or scorers at once in the UI.
• Cross-project UI copies keep the source name and slug. If the slug is already in use in the destination project, the copy is named <original name> (copy) and gets a new slug.
• UI duplication of either a prompt or a scorer requires Read permission on the source. Scorer duplication uses prompt permissions, so you also need Create and Update permissions for prompts in the destination project. Only projects where you have both destination permissions appear in the destination picker.
• Copied references, such as MCP servers and tools, retain their existing access requirements.