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 art2url/career-agent-skills --skill cover-letter-writergit clone --depth 1 https://github.com/art2url/career-agent-skillsWrote 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/art2url/career-agent-skills/cover-letter-writer)<a href="https://agentmods.dev/skills/art2url/career-agent-skills/cover-letter-writer"><img src="https://agentmods.dev/badge/skills/art2url/career-agent-skills/cover-letter-writer/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/art2url/career-agent-skills/cover-letter-writer"><img src="https://agentmods.dev/badge/skills/art2url/career-agent-skills/cover-letter-writer.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 | $0.00030 | $0.00638 |
| Opus 5 | $0.00015 | $0.00319 |
| Sonnet 5 | $0.00006 | $0.00128 |
| Haiku 4.5 | $0.00003 | $0.00064 |
Grade A, and why
cover-letter-writer 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 12d 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 — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cover Letter Writer
Trigger
Use when the user wants to write a cover letter or application letter.
Keywords: "cover letter", "write cover letter", "cover letter generator", "application letter", "write letter for job", "cover letter for job", "cover letter template", "how to start cover letter", "cover letter opening", "personalized cover letter", "job application letter"
Best used after job-fit-analyzer to have clear talking points.
Inputs Needed
- User's resume or key experience details
- Job description or target role details
- Company name
- Any special context: referral, career change, gap to address
Process
Step 1: Structure (250-400 words, 3-4 paragraphs)
Paragraph 1 — Hook + Position (2-3 sentences) Open with something specific: company knowledge, mutual connection, relevant achievement, or industry insight. State the role. Never open with "I am writing to apply for..."
Paragraph 2 — Strongest Match (3-4 sentences) Connect your #1 most relevant experience to their #1 requirement. Include a specific metric. Formula: [Their need] + [Your experience] + [Your result].
Paragraph 3 — Additional Value + Gap Handling (3-4 sentences) Second qualification match. If there's an obvious gap, address it proactively and honestly. If no gaps, show company research and culture fit.
Paragraph 4 — Close (2-3 sentences) Enthusiasm for something specific about the role/company. Suggest next step. Thank them.
Step 2: Adjust Tone
- Startup: Conversational, show initiative and scrappiness
- Enterprise: Formal, emphasize process and scale
- Creative roles: Show personality, reference their brand
- Finance/Legal: Conservative, lead with credentials
Step 3: Generate Alternatives
Always provide 2 opening hook options so the user can choose the approach they prefer.
Output Format
## Cover Letter: [Position] at [Company]
**Strategy:**
- Strengths to highlight: [list]
- Gaps to address: [list or "none"]
- Tone: [formal/conversational/creative]
---
[Full cover letter text]
---
**Alternative opening:**
[Different hook approach]
**Talking points for interview:**
- [Point from letter to expand on]
- [Point from letter to expand on]
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.
- 12d ago First seen · 82 lines · 30 tokens per session scan A 341b3fe4fc0e
cover-letter-writer is a skill published in the GitHub repository art2url/career-agent-skills (9 stars, last pushed 5mo ago), licensed MIT. It adds 30 tokens to every session and 638 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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