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 hujizhou35-cmd/journal-cover-letter-tutorial --skill journal-cover-letter-skillgit clone --depth 1 https://github.com/hujizhou35-cmd/journal-cover-letter-tutorialWrote 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/hujizhou35-cmd/journal-cover-letter-tutorial/journal-cover-letter-skill)<a href="https://agentmods.dev/skills/hujizhou35-cmd/journal-cover-letter-tutorial/journal-cover-letter-skill"><img src="https://agentmods.dev/badge/skills/hujizhou35-cmd/journal-cover-letter-tutorial/journal-cover-letter-skill/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/hujizhou35-cmd/journal-cover-letter-tutorial/journal-cover-letter-skill"><img src="https://agentmods.dev/badge/skills/hujizhou35-cmd/journal-cover-letter-tutorial/journal-cover-letter-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00124 | $0.03673 |
| Opus 5.5 | $0.00050 | $0.01469 |
| Sonnet 5.5 | $0.00025 | $0.00735 |
| Haiku 4.5 | $0.00012 | $0.00367 |
Grade A, and why
journal-cover-letter-skill 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 2mo 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 — 297 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Journal Cover Letter Skill v3.2
Turn verified manuscript facts into a clear editorial decision aid. Default to English unless the user requests another language. Prioritize biomedical and life-science submissions while remaining useful across disciplines.
Core architecture: evidence anchor -> editorial meaning
Every persuasive claim must contain both parts:
empirical_anchor: the concrete, manuscript-traceable observation selected for the editor;editorial_meaning: what that observation changes in understanding, interpretation, coordination, practice, or the next research decision.
For manuscripts with a distinctive empirical taxonomy, trend set, or named result pattern, also preserve an authorial_empirical_fingerprint: the minimum manuscript-native detail that lets an editor distinguish this paper from another paper on the same topic.
A letter fails when it offers facts without meaning, meaning without a traceable factual anchor, or a polished abstraction that erases the manuscript's empirical fingerprint. This is the central v3.1 rule.
Core rules
- Treat the manuscript and author-confirmed materials as the factual source of truth. Never invent titles, results, registrations, declarations, author details, editor names, or journal requirements.
- Separate facts into
verified,conflict,missing, andnot_applicable. Separate factual claims from interpretation. - Use the strongest wording the evidence supports. Accuracy should sharpen the pitch, not make it timid.
- Separate the journal's official submission label from the manuscript's intellectual route. They may differ.
- Treat previous letters as user-controlled. Reuse or analyze them only within explicit permission.
- Treat an expert-authored letter as evidence of selection and editorial judgment, not as a gold standard or factual authority.
- When testing a skill against a human benchmark, freeze a blind baseline before revealing the benchmark, compare editorial effects rather than wording, and modify transferable rules rather than patching a single draft.
- Verify current journal information from official sources after the factual foundation is stable.
- Use bounded revision loops. Reaching a loop limit is not success.
- Use scripts for deterministic extraction, validation, auditing, and DOCX generation. Keep scientific meaning and editorial judgment in model reasoning.
What ships with it
25 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- agents/openai.yaml 255 B
- assets/cover-letter-payload.bibliometrics.example.json 3.5 KB
- assets/cover-letter-payload.example.json 2.2 KB
- assets/cover-letter-template.md 755 B
- references/bibliometrics-playbook.md 9.8 KB
- references/blind-benchmark-loop.md 2.2 KB
- references/controlled-uplift.md 1.2 KB
- references/editorial-iteration-rubric.md 2.6 KB
- references/human-benchmark-protocol.md 4.4 KB
- references/intake-and-fact-sheet.md 2.5 KB
- references/journal-research-protocol.md 1.6 KB
- references/loop-controller.md 5.2 KB
- references/migration-v2.3-to-v3.0.md 1.1 KB
- references/migration-v3.0-to-v3.1.md 680 B
- references/migration-v3.1-to-v3.2.md 604 B
- references/output-and-docx.md 948 B
- references/persuasion-calibration.md 1.6 KB
- references/research-playbook.md 7.6 KB
- references/review-playbook.md 4.6 KB
- references/submission-branches-and-declarations.md 1.3 KB
- scripts/audit_cover_letter.py 2.9 KB runs code
- scripts/extract_docx_content.py 1.2 KB runs code
- scripts/generate_audit_report.py 2.8 KB runs code
- scripts/render_cover_letter_docx.py 4.5 KB runs code
- scripts/validate_payload.py 6.8 KB runs code
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.
- 2mo ago First seen · 297 lines · 124 tokens per session scan A 9184d3be0802
journal-cover-letter-skill is a skill published in the GitHub repository hujizhou35-cmd/journal-cover-letter-tutorial (42 stars, last pushed 1mo ago), licensed MIT. It adds 124 tokens to every session and 3,673 once invoked, about $0.0005 per session on Opus 5.5. 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.
journal-cover-letter-skill compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| journal-cover-letter-skillhujizhou35-cmd/journal-cover-letter-tutorial | Skill | 42 | 1mo ago | MIT | A | 124 | Codex |
| data-management-planpedrohcgs/claude-code-my-workflow | Skill | 1.7k | 2d ago | MIT | A | 143 | Claude Code |
| scaffold-exercisespedrohcgs/claude-code-my-workflow | Skill | 1.7k | 2d ago | MIT | A | 101 | Claude Code |
| validate-bibpedrohcgs/claude-code-my-workflow | Skill | 1.7k | 2d ago | MIT | A | 47 | Claude Code |
| anti-defensive-writing-enAdkid-Zephyr/anti-defensive-writing-Skill | Skill | 5.3k | 10d ago | MIT | A | 138 | Claude Code, Codex |
| review-rpedrohcgs/claude-code-my-workflow | Skill | 1.7k | 2d ago | MIT | A | 102 | Claude Code |
| aeja-tables-figuresbrycewang-stanford/Awesome-Journal-Skills | Skill | 1.4k | 1mo ago | MIT | A | 0 | Claude Code |