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 synthesisengineering/synthesis-skills --skill synthesis-article-writinggit clone --depth 1 https://github.com/synthesisengineering/synthesis-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/synthesisengineering/synthesis-skills/synthesis-article-writing)<a href="https://agentmods.dev/skills/synthesisengineering/synthesis-skills/synthesis-article-writing"><img src="https://agentmods.dev/badge/skills/synthesisengineering/synthesis-skills/synthesis-article-writing/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/synthesisengineering/synthesis-skills/synthesis-article-writing"><img src="https://agentmods.dev/badge/skills/synthesisengineering/synthesis-skills/synthesis-article-writing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 259 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 | $0.00136 | $0.06187 |
| Opus 5 | $0.00068 | $0.03093 |
| Sonnet 5 | $0.00027 | $0.01237 |
| Haiku 4.5 | $0.00014 | $0.00619 |
Grade A, and why
synthesis-article-writing 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 11d 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 — 476 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Article Writing
A five-phase workflow for creating high-quality thought leadership articles: reader briefing, research/validation, strategic writing, pre-publication critical review, and publication-package review. Use when exploring a book, concept, or trend and connecting it to your expertise.
Load-with contract for publication review. Article drafting, headline work, article-package review, and publication-readiness review load the full prose-quality stack (synthesis-content-quality, synthesis-writing-pitfalls, synthesis-writing-craft, plus the author's private voice skill where one exists) and the framing plane: synthesis-reader-briefing, synthesis-content-framing, and this skill. A prose-stack-only route reviews bodies while the title/lede/reader-entry plane goes unexamined — the documented Set A failure mode: a full-body review cleared 29 of 30 packages whose titles then failed a title-only skim (6 keep / 8 tune / 16 replace). Do not load the framing plane for every email or sentence edit; the trigger is article-level framing or publication readiness.
Phase 0: Reader Briefing (REQUIRED PRECONDITION)
Hard precondition. Before any research or drafting begins, write a four-paragraph reader briefing using the synthesis-reader-briefing skill. The briefing answers four questions: who is this for, what do they bring to the page, what does the article ask of them, what does the reader leave with.
The briefing lives as .briefing.md adjacent to the draft (in the same directory as the article markdown file). Without a committed briefing, this skill refuses to proceed. The friction is intentional — drafting without a briefing is the documented failure mode of inheriting source-material framing in articles meant for an external audience.
What ships with it
2 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.
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.
- 11d ago First seen · 476 lines · 136 tokens per session scan A 0c87867b9ae9
synthesis-article-writing is a skill published in the GitHub repository synthesisengineering/synthesis-skills (18 stars, last pushed yesterday), licensed Apache-2.0. It adds 136 tokens to every session and 6,187 once invoked, about $0.0007 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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