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postmark-automation

Automate Postmark email delivery tasks via Rube MCP (Composio): send templated emails, manage templates, monitor delivery stats and bounces. Always search tools first for current schemas.

Install with Tessl CLI

npx tessl i github:Lingjie-chen/MT5 --skill postmark-automation
What are skills?

71

Does it follow best practices?

Validation for skill structure

SKILL.md
Review
Evals

Evaluation results

94%

54%

Automated Pricing Change Notification Campaign

Batch templated email sending workflow

Criteria
Without context
With context

RUBE_SEARCH_TOOLS first

0%

100%

Connection verification

0%

100%

Template discovery step

70%

100%

Correct send tool

50%

100%

Batch size enforcement

100%

100%

TemplateId XOR TemplateAlias

0%

100%

TemplateModel key matching

100%

100%

Rate limit handling

10%

70%

Defensive response parsing

37%

100%

Template ID as integer

0%

62%

Workflow documented

50%

100%

Without context: $0.4883 · 2m 33s · 23 turns · 24 in / 9,177 out tokens

With context: $0.4901 · 1m 47s · 22 turns · 26 in / 6,782 out tokens

100%

53%

Rebrand the Welcome Email Template

Template management and validation workflow

Criteria
Without context
With context

RUBE_SEARCH_TOOLS first

0%

100%

Connection setup

0%

100%

List templates first

100%

100%

Fetch before edit

100%

100%

Edit preserves all fields

50%

100%

Template ID as integer

100%

100%

Variable inspection step

0%

100%

Post-edit validation

50%

100%

TemplateModel keys match variables

0%

100%

Workflow documented

50%

100%

Without context: $0.8143 · 3m 29s · 49 turns · 752 in / 11,903 out tokens

With context: $0.4774 · 2m 3s · 18 turns · 20 in / 8,088 out tokens

92%

4%

Weekly Email Delivery Health Report

Delivery monitoring and bounce management

Criteria
Without context
With context

RUBE_SEARCH_TOOLS first

100%

0%

Connection verification

0%

100%

Delivery stats tool

100%

100%

Outbound overview tool

100%

100%

Date format YYYY-MM-DD

100%

100%

Bounce retrieval tool

100%

100%

Bounce type enumeration

100%

100%

Hard bounce removal flag

100%

100%

Spam complaint retrieval

100%

100%

Pagination with count/offset

100%

100%

Workflow documented

100%

100%

Defensive response parsing

0%

100%

Without context: $1.1711 · 4m 32s · 39 turns · 167 in / 12,279 out tokens

With context: $0.6577 · 2m 43s · 23 turns · 30 in / 11,001 out tokens

Evaluated
Agent
Claude Code

Table of Contents

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If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.