improvement(resend): add error handling, authMode, and naming consistency

[waleedlatif1]

Summary

• Add createLogger and error handling to all 7 direct-API tool files
• Add authMode: AuthMode.ApiKey to block config
• Add .trim() on ID fields in URL paths
• Move optional send-email fields (cc, bcc, replyTo, scheduledAt, tags) to advanced mode
• Add wandConfig for scheduledAt (timestamp) and tags fields
• Add missing block outputs (scheduledAt, unsubscribed)
• Add optional: true on nullable tool outputs
• Rename mailSendTool to resendSendTool for naming consistency
• Use ?? instead of || for null-coalescing in response transforms

Type of Change

• 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	Actions	Updated (UTC)
docs	Skipped		Feb 28, 2026 7:12pm

[greptile-apps]

Greptile Summary

This PR systematically improves the Resend integration across all tool files and block configuration.

Key Changes

• Error Handling: Added createLogger and comprehensive error handling to all 7 direct-API tool files (get_email, create_contact, delete_contact, get_contact, update_contact, list_contacts, list_domains) with proper error responses and logging
• Input Validation: Added .trim() on ID fields (emailId, contactId) in URL paths to prevent whitespace-related API errors
• Block Configuration: Added authMode: AuthMode.ApiKey to the Resend block config
• UI Improvements: Moved optional send-email fields (contentType, cc, bcc, replyTo, scheduledAt, tags) to advanced mode for cleaner default UI
• AI Features: Added wandConfig for scheduledAt (timestamp generation) and tags fields to enable AI-powered field generation
• Schema Completeness: Added missing block outputs (scheduledAt, unsubscribed) and marked nullable tool outputs as optional
• Naming Consistency: Renamed mailSendTool to resendSendTool across all files for consistent naming convention
• Safer Null Handling: Replaced || with ?? operator for null-coalescing in response transforms to avoid falsy value bugs

The changes follow consistent patterns, add defensive programming practices, and maintain backward compatibility while improving robustness and user experience.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• All changes are defensive improvements that add error handling, input validation, and better null-coalescing without modifying core business logic. The consistent patterns across all 7 tool files, proper error responses, and improved type safety make this a low-risk enhancement.
• No files require special attention

Important Files Changed

Filename	Overview
apps/sim/blocks/blocks/resend.ts	Added authMode, moved optional fields to advanced mode, added wandConfig for scheduledAt and tags, and added missing outputs (scheduledAt, unsubscribed)
apps/sim/tools/resend/get_email.ts	Added logger, error handling, .trim() on emailId, ?? operator for null-coalescing, and optional: true on nullable outputs
apps/sim/tools/resend/create_contact.ts	Added createLogger and comprehensive error handling with proper error responses
apps/sim/tools/resend/delete_contact.ts	Added logger, error handling, .trim() on contactId, and ?? operator for null-coalescing
apps/sim/tools/resend/get_contact.ts	Added logger, error handling, .trim() on contactId, and ?? operator for null-coalescing
apps/sim/tools/resend/update_contact.ts	Added logger, error handling, and .trim() on contactId in URL path
apps/sim/tools/resend/list_contacts.ts	Added createLogger, error handling for API errors, and ?? operator for null-coalescing
apps/sim/tools/resend/list_domains.ts	Added logger, error handling, and ?? operator for null-coalescing in transformResponse

_{Last reviewed commit: bef36ec}

[greptile-apps]

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