Prose quality checker for Quarto (.qmd) files, grounded in William Zinsser's On Writing Well (30th Anniversary Edition).

Custom licenceAuto-check passedWriting & Content

Install Write Well

skills CLI
$ npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill write-well -a claude-code

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

GitHub CLI
$ gh skill install brycewang-stanford/Auto-Empirical-Research-Skills write-well --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/brycewang-stanford/Auto-Empirical-Research-Skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/22-christopherkenny-skills/skills/write-well .claude/skills/write-well && 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
write-well
GitHub stars
4.5k
Token cost
~4.1k tokens
SKILL.md length
2,007 words
Files
1
Skills in repo
364
Repo updated
First seen
Licence
Custom licence

At a glance

Prose quality checker for Quarto (.qmd) files, grounded in William Zinsser's On Writing Well (30th Anniversary Edition).

  • Works in 6 steps: CLUTTER → WEAK VERBS AND OVERLOADED MODIFIERS → VOICE AND CLICHÉS → …
  • Asked to improve prose quality
  • SKILL.md covers Input Arguments, Scope, Zinsser's Principles — Chapter… and What to Check, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Write Well is an agent skill from brycewang-stanford/Auto-Empirical-Research-Skills. Prose quality checker for Quarto (.qmd) files, grounded in William Zinsser's On Writing Well (30th Anniversary Edition). Checks for clutter, weak verbs, hollow qualifiers, clichés, inflated academic voice, poor leads and endings, pronoun and tense inconsistency, and unclear explanation. Produces a structured markdown report organized by document section — never modifies the source file. Use when asked to improve prose quality, tighten writing, reduce clutter, or apply Zinsser's writing principles to a draft. For…

Its SKILL.md is about 4.1k 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, covering Copy editing and proofreading and Plain language and style rules. The repository describes itself as: 🔬 A curated collection of 23,000+ agent skills for empirical research across 8 social science disciplines. | 精选 23,000+ AI Agent 技能库,覆盖8大社会科学学科的实证研究。CoPaper.AI…

When your agent uses it

  • Asked to improve prose quality
  • Tighten writing
  • Apply Zinssers writing principles to a draft

Example prompts

  • “/write-well”

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. CLUTTER
  2. WEAK VERBS AND OVERLOADED MODIFIERS
  3. VOICE AND CLICHÉS
  4. UNITY AND SCOPE
  5. LEADS AND ENDINGS
  6. CLARITY OF EXPLANATION

What it can do on your machine

Read from SKILL.md and the folder at commit 9fa87d8. 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 (its code samples are markdown).

    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

Write Well loads about 4.1k tokens when it runs. Until then it costs about 186 tokens; SKILL.md has 2,007 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~186
When it runs · the whole SKILL.md, loaded when a task matches
~4.1k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 2,007 words (~4,124 tokens).

“You are an expert writing coach applying the principles of On Writing Well by William Zinsser (30th Anniversary Edition) to an academic manuscript written by political scientists.”

— opening of SKILL.md by brycewang-stanford, Custom licence
name
write-well
metadata.author
Christopher T. Kenny
metadata.version
1

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/22-christopherkenny-skills/skills/write-well of brycewang-stanford/Auto-Empirical-Research-Skills.

Open the folder on GitHubat commit 9fa87d8

Compare with similar skills

Write Well 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.

Write Well compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Write Well this skillbrycewang-stanford/Auto-Empirical-Research-Skills4.5k—~4.1kAutomated safety check: PassCustom licence
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Defensive Writing Editorlennney/stop-that-shit2.5k1 repos~1.2kAutomated safety check: PassMIT
Chinese Technical Writingleter/zh-tech-writing334—~656Automated safety check: PassMIT
Oil Tone Chinese Writing Styleoil-oil/oil-tone230—~517Automated safety check: PassMIT
ISO 24495-1 Plain LanguageGaZmagik/iso-244951891 repos~2kAutomated safety check: PassMIT

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Questions about Write Well

What does Write Well do?

Prose quality checker for Quarto (.qmd) files, grounded in William Zinsser's On Writing Well (30th Anniversary Edition). Write Well is an agent skill from brycewang-stanford/Auto-Empirical-Research-Skills.qmd) files, grounded in William Zinsser's On Writing Well (30th Anniversary Edition).

When should I use Write Well?

Write Well fits situations like: asked to improve prose quality; tighten writing; apply Zinssers writing principles to a draft.

How do I install Write Well in Claude Code?

Run `npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill write-well -a claude-code`. Or copy the skill folder (skills/22-christopherkenny-skills/skills/write-well in brycewang-stanford/Auto-Empirical-Research-Skills) into .claude/skills/write-well in your project. Claude Code loads it when a task matches its description.

How do I install Write Well in Codex?

Run `npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill write-well -a codex`. Or copy the skill folder (skills/22-christopherkenny-skills/skills/write-well in brycewang-stanford/Auto-Empirical-Research-Skills) into .agents/skills/write-well in your project. Codex loads it when a task matches its description.

Can I use Write Well 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 brycewang-stanford/Auto-Empirical-Research-Skills --skill write-well -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/write-well, .gemini/skills/write-well, .github/skills/write-well and .opencode/skills/write-well in your project.

What does Write Well need to run?

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

Does Write Well 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 Write Well 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 Write Well use?

Write Well has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Write Well use?

About 4.1k tokens (SKILL.md is roughly 16k 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 Write Well?

Skills that share tags, products or a category with Write Well: Natural Japanese Business Writing (coji/natural-japanese, 1.9k stars), Defensive Writing Editor (lennney/stop-that-shit, 2.5k stars), Chinese Technical Writing (leter/zh-tech-writing, 334 stars) and Oil Tone Chinese Writing Style (oil-oil/oil-tone, 230 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Write Well?

brycewang-stanford (a GitHub user) maintains it in brycewang-stanford/Auto-Empirical-Research-Skills, which has 4,529 GitHub stars. The repository holds 364 skills in this directory. The repository was last updated on October 5, 2026.

Source: brycewang-stanford/Auto-Empirical-Research-Skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.