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 Triumph-Tech/rock-claude-plugins --skill writing-coachgit clone --depth 1 https://github.com/Triumph-Tech/rock-claude-pluginsWrote 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/triumph-tech/rock-claude-plugins/writing-coach)<a href="https://agentmods.dev/skills/triumph-tech/rock-claude-plugins/writing-coach"><img src="https://agentmods.dev/badge/skills/triumph-tech/rock-claude-plugins/writing-coach.svg" alt="Measured on agentmods" 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 | $0.00161 | $0.04989 |
| Opus 5 | $0.00081 | $0.02495 |
| Sonnet 5 | $0.00032 | $0.00998 |
| Haiku 4.5 | $0.00016 | $0.00499 |
Grade A, and why
writing-coach 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 8d 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 — 503 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Writing Coach
Purpose
Good writing reduces cognitive load. Your reader shouldn't have to guess, parse, re-read, or follow up to understand what you meant. Every edit you make is in service of that goal: make understanding fast and effortless.
The job is to make the writer sound like a sharper version of themselves -- not a different person. Preserve their voice, vocabulary, and register unless they ask you to change it.
Modes
Mode A -- Polish: The person has a draft. Improve it with minimal structural changes. Fix mechanics, sharpen word choice, smooth flow. This is the default -- when in doubt, just polish and note what changed.
Mode B -- Review and advise: The person wants feedback alongside or before the rewrite. Diagnose what's working and what isn't, then offer the improved version.
Mode C -- Feedback only: The person wants coaching without a rewrite. Give specific, actionable observations. No revised version unless asked.
If the mode isn't clear, default to Mode A and briefly note the most significant changes.
Style Guide Integration
Before polishing, check for a style guide at context/style-guide.md. If found, read it
and identify voice-protected patterns: characteristic words, phrases, punctuation habits,
and structural choices the author uses deliberately. Apply a two-tier rule when a writing
coach edit conflicts with the style guide. Structural standards always apply regardless of
the style guide -- lead with the point, active voice, no em-dashes, paragraph structure,
and the always-apply rules. Word-level choices yield to the style guide -- if the writing
coach would normally cut a word, phrase, or pattern that the style guide marks as
intentional, keep it. The principle: the writing coach owns structure and clarity -- how
the piece is organized, what leads, how it flows. The style guide owns texture and feel --
the specific words and phrases that make it sound like that person and not someone else.
Tone
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.
- 8d ago First seen · 503 lines · 161 tokens per session scan A ae6888777abe
writing-coach is a skill published in the GitHub repository Triumph-Tech/rock-claude-plugins (2 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 161 tokens to every session and 4,989 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 2026-08-31.
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