Chat and sessions

The session interface is the primary place to work with Purna. It combines conversation, planning, tools, files, and background execution in one workspace.

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Start a session

Select New Session, then describe the result you need in the message composer. Include relevant context such as:

• The biological or scientific question
• The organism, population, disease, target, or pathway
• Files or datasets Purna should use
• Required methods and thresholds
• Expected output formats
• Constraints or validation requirements

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Choose a workflow

Use the + menu or workflow control when the request needs a specialized process. The available workflow modes are Plan Mode, Deep Research, Paper Writing, and Consilium. You can send ordinary scientific questions directly without selecting a workflow.

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Select capabilities and knowledge

Open Capabilities to inspect or control the actions available to Purna, including code execution, image generation, and biological models. Open Skills and knowledge to manage scientific sources, connected reference libraries, and other research context. Some capabilities require a paid plan, external provider approval, or available compute.

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Add files

• Select the + button to upload a file with the request.
• Type @ to mention a file already available in Purna.
• Select a project to work with files and context grouped around that study.

Purna can inspect supported datasets, documents, images, sequences, structures, and compressed archives. The analysis performed depends on the file contents and your request.

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Review plans and approvals

When planning is required, Purna displays the proposed approach, deliverables, validation, assumptions, constraints, capabilities, and success criteria. Approve the plan to begin, request changes, or cancel it. If an external provider or specialized compute is required, review that approval before execution.

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Use the session workspace

Select Layout to show or hide the right-side workspace:

• Approved roadmap contains the accepted plan.
• Notes stores notes associated with the session.
• Files lists uploads and generated outputs.
• Compute shows the compute instance, background jobs, and Deep Research activity.

Select View reasoning on a handed-off or completed task to inspect its execution timeline.

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Review citations

When external evidence is used, citations connect claims to literature or database records. Open the source and verify important claims before using them in publications, regulated work, or consequential decisions.

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Continue with follow-up requests

Follow-up messages in the same session can reuse:

• The conversation and approved plan
• Mentioned and generated files
• Execution history and tool results
• Previous answers and citations

Ask Purna to refine a comparison, rerun an analysis with different thresholds, generate another output, or continue from the existing result.

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Manage sessions

Previous sessions appear in the sidebar. Use search to find earlier work. Session controls allow you to rename, share, or remove a session when those actions are available. Keep sensitive work private and confirm visibility before sharing research material.