CtrlK
BlogDocsLog inGet started
Tessl Logo

batch-draft-writer

Drafts multiple email replies or follow-ups in batch using the Superhuman Mail MCP server — processing your inbox in bulk rather than one email at a time. Use this skill whenever someone asks to "draft replies to my unread emails", "respond to all my emails", "write follow-ups for my meetings this week", "batch draft responses", "draft emails for all threads that need a reply", "auto-draft my inbox", "help me respond to everything", "write follow-up emails based on my meetings", "process my inbox", "draft responses to these threads", or any variation of wanting multiple emails drafted at once. Also trigger when someone says "I have a bunch of emails to respond to", "help me get through my inbox", "draft a mail merge", "send personalized emails to these people", or wants to create multiple drafts from a single prompt. Trigger broadly — if someone wants more than one email drafted, this skill should activate.

85

1.84x
Quality

83%

Does it follow best practices?

Impact

85%

1.84x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Quality

Content

77%

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

This is a strong, actionable skill with excellent workflow clarity and specific MCP tool call guidance. Its main weakness is moderate verbosity — some points are repeated (inbox filtering is stated three times), and the introductory framing adds tokens without value. The skill would benefit from tightening redundant sections and potentially splitting detailed guidance into supporting files.

Suggestions

Remove the redundant restatements of the inbox filter requirement — state it once clearly in Step 2 and reference it briefly in the guidelines section rather than explaining it three separate times.

Trim the introductory paragraph ('You are a writing assistant...') which restates what Claude can infer from the steps themselves.

DimensionReasoningScore

Conciseness

The skill is reasonably well-structured but includes some unnecessary verbosity — e.g., the introductory paragraph explaining what the skill does, the 'How it works' framing, and some redundant restatements of guidelines (the inbox filter point is made three times). Several sections could be tightened without losing clarity.

2 / 3

Actionability

The skill provides specific MCP tool calls with exact parameter names (e.g., `Superhuman_Mail.list_threads` with `is_unread: true` and `labels: ["INBOX"]`), concrete template outputs for user-facing summaries, and clear instructions for each step. The guidance is directly executable by Claude using the named MCP server methods.

3 / 3

Workflow Clarity

The workflow is clearly sequenced across 6 steps with explicit validation checkpoints: Step 3 requires user approval before drafting, Step 5 requires explicit confirmation before sending, and Step 6 handles revisions. The 'never send without approval' guideline and the plan-then-draft-then-review-then-send flow provides strong feedback loops for this potentially destructive (sending emails) operation.

3 / 3

Progressive Disclosure

The content is well-organized with clear headers and logical sections, but it's a fairly long monolithic document with no references to supporting files. Some content like the detailed voice/tone matching guidance or the mail merge instructions could be split into separate reference files. However, given no bundle files exist, the inline approach is acceptable though not ideal for this length.

2 / 3

Total

10

/

12

Passed

Description

89%

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 with excellent trigger term coverage and completeness. Its main weakness is that the 'what' portion could be more specific about the concrete actions performed (e.g., searching inbox, reading threads, composing drafts, saving as drafts). The description is somewhat verbose and repetitive in listing trigger phrases, but this serves the functional purpose of skill selection well.

Suggestions

Add more specific concrete actions beyond 'drafts replies/follow-ups in batch' — e.g., 'searches inbox for unread threads, reads conversation context, composes personalized draft replies, and saves them as drafts in Superhuman'.

DimensionReasoningScore

Specificity

The description names the domain (email drafting via Superhuman Mail MCP server) and mentions batch processing and follow-ups, but the actual concrete actions are limited — it mostly says 'drafts multiple email replies or follow-ups in batch' without listing distinct capabilities like searching threads, reading content, composing drafts, etc.

2 / 3

Completeness

Clearly answers both 'what' (drafts multiple email replies/follow-ups in batch using Superhuman Mail MCP server) and 'when' (extensive explicit 'Use this skill whenever...' clause with numerous trigger scenarios). The 'when' guidance is exceptionally thorough.

3 / 3

Trigger Term Quality

Excellent coverage of natural trigger terms users would actually say: 'draft replies to my unread emails', 'respond to all my emails', 'process my inbox', 'help me get through my inbox', 'mail merge', 'batch draft responses', and many more natural variations. This is comprehensive and well-thought-out.

3 / 3

Distinctiveness Conflict Risk

The description is clearly scoped to batch/multiple email drafting via Superhuman Mail MCP, distinguishing it from single-email drafting skills or general email skills. The emphasis on 'more than one email drafted' and 'bulk' processing creates a clear niche with minimal conflict risk.

3 / 3

Total

11

/

12

Passed

Validation

100%

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

Validation11 / 11 Passed

Validation for skill structure

No warnings or errors.

Repository
superhuman/mcp-mail
Reviewed

Table of Contents

Is this your skill?

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.