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Sendmux
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sendmux-token-efficient-usage

Select the most cost-effective Sendmux surface and call for email and mailbox tasks.

31|1|Updated Jun 17, 2026
Search Tags:#token efficiency#batch operations#delta sync#attachment management#Sendmux
One-click install
npx skills add https://github.com/Sendmux/skills --skill sendmux-token-efficient-usage
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: sendmux-token-efficient-usage
Source: https://github.com/Sendmux/skills/tree/main/plugins/sendmux/skills/sendmux-token-efficient-usage
Command: npx skills add https://github.com/Sendmux/skills --skill sendmux-token-efficient-usage

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires sendmux, and includes scripts (resource) components.

What problem does it solve?

This Skill helps users select the most cost-effective Sendmux surface for their tasks, optimizing token usage and minimizing round-trip communication.

Core Features & Use Cases

  • Surface Choice: Determines the best surface (MCP, CLI, SDK, or direct HTTP) for the task based on token efficiency.
  • Batch Operations: Enables batch sends, mailbox search/count/batch reads, sync deltas, cursor pagination, and more.
  • Attachment Management: Routes attachment transfer without context-wasting base64 encoding.
  • Read Optimization: Reduces result sets for mailbox operations to minimize data reading.
  • Write Optimization: Minimizes requests by batching updates and deletes.
  • Sync Optimization: Uses delta sync endpoints to avoid re-listing stable data.
  • Transfer Optimization: Utilizes small limit values and ETags for efficient data transfer.
  • Retry Safety: Implements Idempotency-Key for safe retrying of supported mutations.
  • Routing Guidance: Provides guidance on setting up, using, and managing Sendmux tools and services.

Quick Start

Use the sendmux-token-efficient-usage skill to optimize a Sendmux task by selecting the appropriate surface and call.

Frequently Asked Questions about sendmux-token-efficient-usage

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I reduce token usage when sending emails through Sendmux?▼

To reduce token usage for Sendmux email sending, you can batch operations and route attachment transfers without context-wasting base64 encoding. This minimizes round-trip communication and lowers the overall token cost of your tasks.

What is the best way to batch Sendmux mailbox updates to save tokens?▼

The best way to batch Sendmux mailbox updates is to use write optimization techniques that batch updates and deletes. This minimizes the number of API requests needed, directly reducing token consumption and improving operational efficiency.

Does Sendmux support delta sync to avoid re-listing stable mailbox data?▼

Yes, Sendmux supports delta sync endpoints to avoid re-listing stable data during mailbox management. By utilizing these endpoints, you can significantly optimize data transfer and reduce the token cost of synchronization operations.

Can I use Sendmux CLI or SDK for token-efficient mailbox operations?▼

Yes, you can use the Sendmux SDK or CLI for token-efficient mailbox operations. The system selects the most cost-effective surface—whether MCP, CLI, SDK, or direct HTTP—based on token efficiency for your specific administrative task.

How do I safely retry Sendmux mutations without duplicating email sends?▼

To safely retry Sendmux mutations without duplicating email sends, implement an Idempotency-Key. This retry safety mechanism ensures that supported mutations can be safely retried without causing duplicate operations or wasting tokens.

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