improvement(langsmith): add wand for batch ingestion schemas

[icecrasher321]

Summary

• Add wand for batch ingestion schemas
• Improve placeholder text for start time

Type of Change

• Other: UX Improvement

Testing

Tested manually

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
docs	Skipped		Jan 15, 2026 3:49am

[greptile-apps]

Greptile Summary

This PR improves the LangSmith block by adding AI-assisted code generation (wand) support for batch ingestion schemas and clarifying UX text. The changes are minimal and focused:

• Wand support for batch operations: Added wandConfig with appropriate prompts to both the post and patch fields to help users generate valid LangSmith run objects using AI
• Improved placeholder text: The start_time field now shows a clearer example that documents the default behavior ("defaults to now")
• Removed client-side default: Deleted the value: () => new Date().toISOString() function because the tool properly handles start_time defaults at execution time, making the UI more honest about user intent and giving the tool full control over defaulting logic

All changes follow established patterns in the codebase (see api.ts, function.ts, agent.ts for similar wandConfig usage).

Confidence Score: 5/5

• This PR is safe to merge with no concerns
• The changes are minimal, well-tested, and follow established patterns. (1) Wand configs use the same pattern as existing blocks (api.ts, function.ts, agent.ts) with clear, well-written prompts. (2) The removal of the client-side default for start_time is correct because the tool (normalizeLangsmithRunPayload in utils.ts) already handles undefined/empty values by defaulting to the current time. (3) The improved placeholder text is accurate and helpful. (4) No new external dependencies or breaking changes. (5) All three changes form a coherent improvement to the user experience.
• No files require special attention

Important Files Changed

Filename	Overview
apps/sim/blocks/blocks/langsmith.ts	Improves UX by adding wand (AI generation) support for batch ingestion schemas and clarifying placeholder text for start_time. Removes client-side default for start_time to let the tool handle it on execution, which is more flexible and aligns with updated placeholder text. All changes are correct and follow established patterns.