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 sociilabs/claude-content-writer --skill claude-skillgit clone --depth 1 https://github.com/sociilabs/claude-content-writerWrote 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/sociilabs/claude-content-writer/claude-skill)<a href="https://agentmods.dev/skills/sociilabs/claude-content-writer/claude-skill"><img src="https://agentmods.dev/badge/skills/sociilabs/claude-content-writer/claude-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/sociilabs/claude-content-writer/claude-skill"><img src="https://agentmods.dev/badge/skills/sociilabs/claude-content-writer/claude-skill.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 | $0.00166 | $0.04758 |
| Opus 5 | $0.00083 | $0.02379 |
| Sonnet 5 | $0.00033 | $0.00952 |
| Haiku 4.5 | $0.00017 | $0.00476 |
Grade A, and why
content-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 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
15 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.
- references/anti-ai-checklist.md 28 KB
- references/content-frameworks.md 38 KB
- references/content-packages.md 5.7 KB
- references/email-content-conventions.md 27 KB
- references/facebook-conventions.md 19 KB
- references/instagram-conventions.md 21 KB
- references/profile-management.md 16 KB
- references/research-workflow.md 18 KB
- references/sales-content-conventions.md 42 KB
- references/seo-meta-conventions.md 23 KB
- references/state-schema.md 8.6 KB
- references/ste-writing-rules.md 6.2 KB
- references/twitter-conventions.md 19 KB
- references/web-content-conventions.md 28 KB
- scripts/ste-lint.js 14 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.
- 11d ago First seen · 529 lines · 166 tokens per session scan A 5b4f89050201
content-writer is a skill published in the GitHub repository sociilabs/claude-content-writer (51 stars, last pushed 1mo ago), with no licence file. It adds 166 tokens to every session and 4,758 once invoked, about $0.0008 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.
Other skills, from other repositories
os-check-work
ALWAYS invoke this skill when the user asks about work done outside this session - "check work", "check the others", "check other sessions" - or to accept one: "the session is done, check it", "can we merge it" - in any language. You are the receiving party: treat the report as a claim, verify each part against…
os-done-or-not
ALWAYS invoke this skill when work wraps up or the user asks how it went - "done or not", "are we done", "what happened", "report" - in any language, and when a Stop hook asks for a session report. Produces a ten-line plain- language report: a lead, a checkmark table, and a verdict - fully done, anything needed from…
os-step-by-step
ALWAYS invoke this skill when you need the user to act - run a command, paste a secret, click, approve - and whenever they ask how to do something or say they do not know what to do: "step by step", "walk me through it", "what do I do", "what should I do", "I don't understand what to do", "explain what I need to do"…
os-what-could-go-wrong
ALWAYS invoke this skill before anything hard to undo gets agreed to - a contract, a purchase, a migration, a launch, a price change, a reorganisation - and whenever the user asks "what could go wrong", "what are we missing", "poke holes in this", or for a premortem or a red team, in any language. Assumes the decision…
os-ask-simple
ALWAYS invoke this skill before asking the user any technical question or offering options, and whenever they ask to be asked in plain words - "ask simple", "ask me simply", "ask me in plain words" - or ask if something is worth doing or if something simpler would do, in any language. Rewrites the question in plain…
os-whats-next
ALWAYS invoke this skill when the user asks what to do next, what is left, or what is blocked - "what's next", "what now", "what should we work on", "anything I can do" - in any language. This skill picks the next piece of work; when the user asks HOW to do a thing or says they do not understand what to do, that is…