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 agentmods add skills/justdvp/claude-code-templates/email-composernpx skills add Justdvp/claude-code-templates --skill email-composergit clone --depth 1 https://github.com/Justdvp/claude-code-templatesWrote 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/justdvp/claude-code-templates/email-composer)<a href="https://agentmods.dev/skills/justdvp/claude-code-templates/email-composer"><img src="https://agentmods.dev/badge/skills/justdvp/claude-code-templates/email-composer.svg" alt="Measured on agentmods" 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 | $0.00031 | $0.01527 |
| Opus 5 | $0.00015 | $0.00763 |
| Sonnet 5 | $0.00006 | $0.00305 |
| Haiku 4.5 | $0.00003 | $0.00153 |
Grade A, and why
Email Composer 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 5d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- Email Composer — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 318 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Email Composer
Quick start
Provide context and purpose, and I'll draft an appropriate email.
What I need:
- Purpose of email (request, follow-up, announcement, etc.)
- Recipient relationship (colleague, customer, manager, vendor)
- Key points to include
- Desired tone (formal, casual, urgent, friendly)
Email structure
Standard professional email format:
Subject: [Clear, specific subject line]
[Greeting],
[Opening - context/purpose]
[Body - main points]
[Closing - call to action]
[Sign-off]
[Your name]
Common email types
Request for information
Subject: Question about Q4 project timeline
Hi [Name],
I hope this email finds you well. I'm reaching out regarding the Q4 product launch timeline.
Could you provide an update on:
- Current progress on feature development
- Expected completion date for testing phase
- Any blockers or dependencies we should be aware of
This will help us coordinate with the marketing team for the launch materials.
Thanks in advance for your help!
Best regards,
[Your name]
Follow-up email
Subject: Following up: Proposal for new payment system
Hi [Name],
I wanted to follow up on the payment system proposal I sent last week. I understand you're busy, so I wanted to make sure it didn't get lost in your inbox.
To recap, the proposed system would:
- Reduce transaction fees by 30%
- Integrate with existing accounting software
- Improve customer checkout experience
I'd be happy to schedule a brief call to discuss any questions you might have.
Looking forward to hearing from you.
Best,
[Your name]
Technical update
Subject: API Maintenance Window - [Date]
Team,
This is a reminder that we'll be performing scheduled maintenance on our API infrastructure on [Date] from [Time] to [Time] [Timezone].
During this window:
- API endpoints will be unavailable
- Database will be upgraded to v14
- SSL certificates will be renewed
Expected downtime: 2 hours
What you need to do:
- Notify your users of the planned downtime
- Ensure retry logic is in place for API calls
- Monitor your application after maintenance completes
If you have any concerns or conflicts with this schedule, please let me know by [Date].
Technical details available in our status page: [link]
Thanks,
[Your name]
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.
- 5d ago First seen · 318 lines · 31 tokens per session scan A fee7df66bbb4
Email Composer is a skill published in the GitHub repository Justdvp/claude-code-templates (7 stars, last pushed 2d ago), licensed MIT. It adds 31 tokens to every session and 1,527 once invoked, about $0.0002 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 2026-08-31.
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