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Agent skill

Writing Coach

by RightNow-AI in RightNow-AI/openfang

Writing improvement specialist for grammar, style, clarity, and structure

Apache-2.0Auto-check passedWriting & Content

Install Writing Coach

skills CLI
$ npx skills add RightNow-AI/openfang --skill writing-coach -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install RightNow-AI/openfang writing-coach --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/RightNow-AI/openfang.git skills-src && mkdir -p .claude/skills && cp -r skills-src/crates/openfang-skills/bundled/writing-coach .claude/skills/writing-coach && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
writing-coach
GitHub stars
18k
Token cost
~622 tokens
SKILL.md length
337 words
Files
1
Skills in repo
68
Repo updated
First seen
Licence
Apache-2.0

At a glance

Writing improvement specialist for grammar, style, clarity, and structure

  • Writing & Content work in your project
  • SKILL.md covers Key Principles, Structural Improvements, Sentence-Level Clarity and Technical Writing, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Writing Coach is an agent skill from RightNow-AI/openfang. Writing improvement specialist for grammar, style, clarity, and structure

Its SKILL.md is about 620 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Writing & Content. The repository describes itself as: Open-source Agent Operating System. The licence is Apache-2.0.

When your agent uses it

  • Writing & Content work in your project

Example prompts

  • “/writing-coach”

What it can do on your machine

Read from SKILL.md and the folder at commit acf2587. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Writing Coach loads about 622 tokens when it runs. Until then it costs about 22 tokens; SKILL.md has 337 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~22
When it runs · the whole SKILL.md, loaded when a task matches
~622

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from RightNow-AI/openfang at commit acf2587, republished under its Apache-2.0 licence (© RightNow-AI). 337 words, ~622 tokens.

Download SKILL.mdSave it as .claude/skills/writing-coach/SKILL.md (or your agent's skills folder).
name
writing-coach
description
Writing improvement specialist for grammar, style, clarity, and structure

Writing Coach

You are a writing improvement specialist. You help users write clearer, more compelling, and more effective prose — whether technical documentation, emails, blog posts, or creative writing.

Key Principles

  • Clarity is the highest virtue. Every sentence should communicate its meaning on the first read.
  • Respect the author's voice. Improve the writing without replacing their style with yours.
  • Show, do not just tell. When suggesting improvements, provide the revised text alongside the explanation.
  • Tailor advice to the audience and medium. A Slack message, an academic paper, and a marketing email have different standards.

Structural Improvements

  • Lead with the most important information. Use the inverted pyramid: conclusion first, supporting details after.
  • Use short paragraphs (3-5 sentences max). Each paragraph should make one point.
  • Use headings, bullet points, and numbered lists to break up dense text for scanability.
  • Ensure logical flow between paragraphs — each should connect to the next with a clear transition.
  • Cut ruthlessly. If a sentence does not add value, remove it.

Sentence-Level Clarity

  • Prefer active voice over passive: "The team deployed the fix" not "The fix was deployed by the team."
  • Eliminate filler words: "very," "really," "basically," "actually," "in order to."
  • Use specific, concrete language instead of vague abstractions: "latency dropped from 200ms to 50ms" not "performance improved significantly."
  • Keep sentences under 25 words when possible. Split long sentences at natural breaking points.
  • Place the subject and verb close together. Avoid burying the main action in subordinate clauses.

Technical Writing

  • Define acronyms and jargon on first use.
  • Use consistent terminology — do not alternate between synonyms for the same concept.
  • Include examples for abstract concepts. A single concrete example is worth paragraphs of explanation.
  • Write procedures as numbered steps with one action per step.

Pitfalls to Avoid

  • Do not over-edit to the point of removing personality or nuance.
  • Do not suggest changes that alter the factual meaning of the text.
  • Avoid prescriptive grammar rules that are outdated (e.g., never splitting infinitives). Focus on clarity, not pedantry.
  • Do not rewrite everything at once — prioritize the highest-impact changes first.

© RightNow-AI, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in crates/openfang-skills/bundled/writing-coach of RightNow-AI/openfang.

Open the folder on GitHubat commit acf2587

Compare with similar skills

Writing Coach next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Writing Coach compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Writing Coach this skillRightNow-AI/openfang18k—~622Automated safety check: PassApache-2.0
Socialcoreyhaines31/marketingskills54k4 repos~4.5kAutomated safety check: PassMIT
HumanizerAzure-Samples/interview-coach-agent-framework17338 repos~5.8kAutomated safety check: PassMIT
Avoid AI Writingconorbronsdon/avoid-ai-writing4.9k3 repos~8.1kAutomated safety check: PassMIT
JavaScript Concept Fact Checkerleonardomso/33-js-concepts67k1 repos~5kAutomated safety check: PassMIT
User-Facing Text Cleanupguillaumemeyer/watermarks-remover24k—~3.5kAutomated safety check: PassMIT

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  • Social

    coreyhaines31/marketingskills

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    54k GitHub starsUsed in 4 repos~4.5k tokens
    Writing & ContentAuto-check passed

  • Humanizer

    Azure-Samples/interview-coach-agent-framework

    Official

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    173 GitHub starsUsed in 38 repos~5.8k tokens
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    4.9k GitHub starsUsed in 3 repos~8.1k tokens
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  • JavaScript Concept Fact Checker

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    67k GitHub starsUsed in 1 repo~5k tokens
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  • Video Clipping Reference

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  • Forecasting Expert Knowledge

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Categories

Questions about Writing Coach

What does Writing Coach do?

Writing improvement specialist for grammar, style, clarity, and structure. Writing Coach is an agent skill from RightNow-AI/openfang.

When should I use Writing Coach?

Writing Coach fits situations like: writing & Content work in your project.

How do I install Writing Coach in Claude Code?

Run `npx skills add RightNow-AI/openfang --skill writing-coach -a claude-code`. Or copy the skill folder (crates/openfang-skills/bundled/writing-coach in RightNow-AI/openfang) into .claude/skills/writing-coach in your project. Claude Code loads it when a task matches its description.

How do I install Writing Coach in Codex?

Run `npx skills add RightNow-AI/openfang --skill writing-coach -a codex`. Or copy the skill folder (crates/openfang-skills/bundled/writing-coach in RightNow-AI/openfang) into .agents/skills/writing-coach in your project. Codex loads it when a task matches its description.

Can I use Writing Coach in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add RightNow-AI/openfang --skill writing-coach -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/writing-coach, .gemini/skills/writing-coach, .github/skills/writing-coach and .opencode/skills/writing-coach in your project.

What does Writing Coach need to run?

SKILL.md names no scripts, command-line tools or credentials: Writing Coach is instructions for the agent only.

Does Writing Coach access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Writing Coach safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Writing Coach use?

Writing Coach is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Writing Coach use?

About 622 tokens (SKILL.md is roughly 2.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Writing Coach?

Skills that share tags, products or a category with Writing Coach: Social (coreyhaines31/marketingskills, 54k stars), Humanizer (Azure-Samples/interview-coach-agent-framework, 173 stars), Avoid AI Writing (conorbronsdon/avoid-ai-writing, 4.9k stars) and JavaScript Concept Fact Checker (leonardomso/33-js-concepts, 67k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Writing Coach?

RightNow-AI (a GitHub organization) maintains it in RightNow-AI/openfang, which has 18,214 GitHub stars. The repository holds 68 skills in this directory. The repository was last updated on July 2, 2026.

Source: RightNow-AI/openfang on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.