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 fatihguner/foreman --skill grammar-and-mechanicsgit clone --depth 1 https://github.com/fatihguner/foremanWrote 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/fatihguner/foreman/grammar-and-mechanics)<a href="https://agentmods.dev/skills/fatihguner/foreman/grammar-and-mechanics"><img src="https://agentmods.dev/badge/skills/fatihguner/foreman/grammar-and-mechanics/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/fatihguner/foreman/grammar-and-mechanics"><img src="https://agentmods.dev/badge/skills/fatihguner/foreman/grammar-and-mechanics.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 | $0.00093 | $0.03183 |
| Opus 5 | $0.00046 | $0.01591 |
| Sonnet 5 | $0.00019 | $0.00637 |
| Haiku 4.5 | $0.00009 | $0.00318 |
Grade A, and why
grammar-and-mechanics 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 5d 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 — 193 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Read runtime and advisory rules before applying this skill. Other Foreman layers and the catalog are in ../../content/, relative to this SKILL.md.
Grammar and Mechanics
A misplaced apostrophe has never killed a company. But it has killed pitch decks, alienated investors, and quietly disqualified founders from rooms they never knew they were being evaluated for. Grammar errors in business writing operate as a credibility tax: each one individually minor, collectively devastating. Readers may not consciously register the error, but they register its effect -- a subtle downgrade in how seriously they take the author. The founder who writes "it's revenue model" instead of "its revenue model" in a Series A memo has communicated something unintended: carelessness with details. And carelessness with details is precisely the trait investors screen for.
The rules that follow are not pedantic niceties. They are the twelve grammatical principles and twelve punctuation conventions that, when violated, most reliably damage professional credibility.
The Framework
Twelve Essential Grammar Rules
1. Starting sentences with And or But is perfectly acceptable. The myth persists from secondary school, but the best prose writers have always done it. Monosyllabic conjunctions create tighter transitions than however or additionally.
2. Ending a sentence with a preposition is fine. The prohibition traces to Latin syntax and has no basis in English grammar. "What will the new product be used for?" reads more naturally than the contorted alternative.
3. Use well as an adverb, not good. "The team performed well" -- not "performed good." The exception: set phrases like "a good many" or "did it but good."
4. The subject determines the verb's number. Prepositional phrases that follow the subject create "false attraction" -- the verb should match the subject, not the nearest noun.
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.
- 5d ago First seen · 193 lines · 93 tokens per session scan A 21c00815ecb3
grammar-and-mechanics is a skill published in the GitHub repository fatihguner/foreman (50 stars, last pushed 6d ago), licensed MIT. It adds 93 tokens to every session and 3,183 once invoked, about $0.0005 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 2026-09-06.
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