resend-email

Resend transactional email patterns, React Email templates, domain configuration, and webhook handling. Use when sending emails, building email templates, or configuring email delivery.

Quality

88%

Does it follow best practices?

Impact

—

No eval scenarios have been run

Securityby

Advisory

Suggest reviewing before use

Quality

Content

77%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A solid, actionable skill with executable code examples and a well-structured verification workflow with explicit validation checkpoints. The main weaknesses are minor redundancy between the domain configuration and verification workflow sections, and the progressive disclosure could be better organized with a clearer navigation structure pointing to REFERENCE.md. Overall it provides practical, ready-to-use guidance for Resend email integration.

Suggestions

Consolidate the two REFERENCE.md mentions into a single 'Advanced / References' section at the bottom with clear labels for what each reference covers (e.g., '**Templates**: See REFERENCE.md § Templates', '**Webhooks**: See REFERENCE.md § Webhooks').

Merge or deduplicate the 'Domain Configuration' section and the domain-related steps in 'Quick Verification Workflow' to avoid repeating DNS/SPF/DKIM verification guidance.

Dimension	Reasoning	Score
Conciseness	Mostly efficient but has some redundancy — the domain configuration step 2 explains DNS record types Claude already knows, and there's slight duplication between the 'Domain Configuration' section and the 'Quick Verification Workflow' section (both mention DNS verification and SPF/DKIM). The webhook section is a bit thin yet still takes space pointing to REFERENCE.md twice.	2 / 3
Actionability	Provides fully executable TypeScript code for sending emails (both plain text and React Email), concrete bash commands for preview and DNS verification, and a curl command for webhook testing. The code examples are copy-paste ready with realistic patterns.	3 / 3
Workflow Clarity	The Quick Verification Workflow provides a clear 5-step sequence with explicit validation checkpoints (dig for DNS, check headers for SPF/DKIM pass, assert 200 for webhook) and an error recovery step (step 5). Domain configuration also has a clear sequence with a post-verify validation step.	3 / 3
Progressive Disclosure	References to REFERENCE.md are present and one-level deep, which is good. However, no bundle files were provided so we can't confirm REFERENCE.md exists, and the references are mentioned in two separate places (React Email Templates section and Webhook Handling section) rather than being consolidated in a clear navigation section. The skill could better signal what's in REFERENCE.md.	2 / 3
	Total	10 / 12 Passed

Description

100%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

This is a strong skill description that clearly identifies the specific technology stack (Resend, React Email), lists concrete capabilities, and includes an explicit 'Use when...' clause with natural trigger terms. It effectively balances specificity with breadth, covering the key use cases without being overly verbose.

Dimension	Reasoning	Score
Specificity	Lists multiple specific concrete actions: 'transactional email patterns', 'React Email templates', 'domain configuration', and 'webhook handling' — these are distinct, concrete capabilities.	3 / 3
Completeness	Clearly answers both 'what' (Resend transactional email patterns, React Email templates, domain configuration, webhook handling) and 'when' (Use when sending emails, building email templates, or configuring email delivery) with an explicit 'Use when...' clause.	3 / 3
Trigger Term Quality	Includes natural keywords users would say: 'sending emails', 'email templates', 'email delivery', plus specific technology terms like 'Resend', 'React Email', 'webhook', and 'domain configuration' that help with precise matching.	3 / 3
Distinctiveness Conflict Risk	The mention of 'Resend' and 'React Email' as specific technologies creates a clear niche that is unlikely to conflict with generic email or other email provider skills. The combination of these specific tools makes it highly distinctive.	3 / 3
	Total	12 / 12 Passed

Validation

100%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 11 / 11 Passed

Validation for skill structure

No warnings or errors.

Repository: monkilabs/opencastle
Commit: 7a69a05

Reviewed: about 1 month ago

Table of Contents

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