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 adenaufal/anti-slop-writing --skill englishgit clone --depth 1 https://github.com/adenaufal/anti-slop-writingWrote 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/adenaufal/anti-slop-writing/english)<a href="https://agentmods.dev/skills/adenaufal/anti-slop-writing/english"><img src="https://agentmods.dev/badge/skills/adenaufal/anti-slop-writing/english/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/adenaufal/anti-slop-writing/english"><img src="https://agentmods.dev/badge/skills/adenaufal/anti-slop-writing/english.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 | $0.00044 | $0.04896 |
| Opus 5.5 | $0.00018 | $0.01958 |
| Sonnet 5.5 | $0.00009 | $0.00979 |
| Haiku 4.5 | $0.00004 | $0.00490 |
Grade A, and why
anti-slop-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 1mo 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 — 324 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Anti-Slop Writing v4.1
Core Principle
Good writing serves the reader and the writer's purpose. Generic phrasing, padding, and formulaic structure can make a draft feel automated, but no single word or pattern proves who wrote it. Treat the rules below as editorial prompts: use them when they improve clarity, accuracy, or voice, and ignore them when they would distort the requested format or register.
Model coverage (reviewed September 27, 2026)
The model names below identify recent versions, not reliable writing fingerprints. Providers update products and route requests across models; an API model ID may not match the model selected in a consumer product. Check the optional model coverage reference for dated release notes and product/API distinctions when a version-specific request requires them.
- ChatGPT / OpenAI: Recent coverage includes GPT-5.6 Sol/Terra/Luna and GPT-6 Astra. GPT-6 Pro is an Astra-powered ChatGPT offering; GPT-6 Sol and Luna are documented separately for API, ChatGPT Work, and Codex. Availability depends on product and plan.
- Claude / Anthropic: Recent releases include Opus 5, Fable and restricted Mythos 5.1, then Opus 5.5. Sonnet and Haiku 5.5 were announced as upcoming, not released as of this update.
- Gemini / Google: Recent releases include Gemini 3.6 Flash and 3.5 Flash-Lite, Gemini 3.7 Flash, and Gemini 3.8 Flash stable.
- Grok / xAI: Recent releases include Grok 4.5, 4.6, and 4.7. Product rollout and availability can differ by surface.
These facts describe release coverage. They do not establish distinctive prose habits for any model. Use the checks in EN-11 to edit what is actually present in a draft.
Before writing, consult references/vocabulary-banlist.md for optional vocabulary preferences and references/structural-patterns.md for editorial examples. For sentence-level repairs, use the focused language editing guide. Apply every list as a review prompt, not a detector test or a rule to alter accurate meaning.
What ships with it
9 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.
- 1mo ago Changed · +9 lines 8eb2a4e7d2ce
- 1mo ago Changed · -100 lines · -32 tokens per session e7fb0f13e50a
- 1mo ago First seen · 415 lines · 76 tokens per session scan A 04c93703649a
anti-slop-writing is a skill published in the GitHub repository adenaufal/anti-slop-writing (151 stars, last pushed 1mo ago), licensed MIT. It adds 44 tokens to every session and 4,896 once invoked, about $0.0002 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.
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