Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add AgriciDaniel/claude-email --skill email-checkgit clone --depth 1 https://github.com/AgriciDaniel/claude-emailWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/agricidaniel/claude-email/email-check)<a href="https://agentmods.dev/skills/agricidaniel/claude-email/email-check"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-email/email-check/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/agricidaniel/claude-email/email-check"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-email/email-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00109 | $0.02351 |
| Opus 5 | $0.00055 | $0.01175 |
| Sonnet 5 | $0.00022 | $0.00470 |
| Haiku 4.5 | $0.00011 | $0.00235 |
Grade A, and why
email-check scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 311 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Email Check Sub-Skill
Purpose
This sub-skill handles intelligent inbox triage by connecting to Gmail or Outlook via MCP, analyzing unread emails, scoring them by importance, categorizing them, and generating reply suggestions for high-priority items.
Workflow
1. Detect Available Email Provider
Check which MCP tools are available:
- Gmail:
search_gmail_messages,get_gmail_messages_content_batch,get_gmail_thread_content,list_gmail_labels - Outlook:
list-mail-messages,list-mail-folder-messages,get-mail-message
Prefer Gmail if both are available (better batch operations).
2. Fetch Unread Emails
For Gmail:
search_gmail_messages(query="is:unread", max_results=50)
For Outlook:
list-mail-messages (defaults to recent messages, filter for unread)
3. Batch Fetch Email Content
For Gmail:
get_gmail_messages_content_batch(message_ids=[...]) # Up to 25 at a time
If more than 25 unread, prioritize most recent first.
For Outlook:
get-mail-message for each message (sequential)
Limit to 25 emails maximum to avoid overwhelming analysis.
4. Score Each Email (0-100)
Apply the following scoring algorithm:
Base Score: 50
Sender Recognition (+20 to -20)
- +20: VIP/known contact (domain matches user's company, appears in sent folder frequently)
- +10: Recognized sender (has prior thread history)
- 0: Unknown sender with legitimate domain
- -15: Newsletter/automated sender (bulk email headers, unsubscribe links)
- -20: Notification sender (no-reply@, noreply@, automated@)
Direct Address (+15 to -10)
- +15: Primary recipient (To: field)
- 0: CC'd (CC: field)
- -10: BCC'd or mass email (many recipients)
Thread Depth (+10)
- +10: Reply in active thread (Re: subject, multiple messages in thread)
- 0: New email (no thread history)
Urgency Keywords (+15)
Check subject and first 200 characters for:
- urgent, ASAP, deadline, action required, immediate, time-sensitive, expiring, expires, due
- +15 if any urgency keyword found
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 311 lines · 109 tokens per session scan A f9daa47d760d
email-check is a skill published in the GitHub repository AgriciDaniel/claude-email (119 stars, last pushed 3mo ago), licensed MIT. It adds 109 tokens to every session and 2,351 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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