Agent skill

Style Clone

Analyze and match the author's unique writing voice. An agent skill from Ckokoski/AuthorAgent.

Install Style Clone

skills CLI

$ npx skills add Ckokoski/AuthorAgent --skill style-clone -a claude-code

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

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent style-clone --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/Ckokoski/AuthorAgent.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/author/style-clone .claude/skills/style-clone && 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/

Paste into Claude Code

Install the "style-clone" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/author/style-clone into .claude/skills/style-clone/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "style-clone", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/Ckokoski/AuthorAgent/tree/main/skills/author/style-clone

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add Ckokoski/AuthorAgent --skill style-clone -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent style-clone --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Ckokoski/AuthorAgent.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/author/style-clone .agents/skills/style-clone && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "style-clone" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/author/style-clone into .agents/skills/style-clone/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "style-clone", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Ckokoski/AuthorAgent --skill style-clone -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent style-clone --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Ckokoski/AuthorAgent.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/author/style-clone .cursor/skills/style-clone && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "style-clone" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/author/style-clone into .cursor/skills/style-clone/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "style-clone", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/Ckokoski/AuthorAgent.git --path skills/author/style-clone

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Ckokoski/AuthorAgent --skill style-clone -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent style-clone --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Ckokoski/AuthorAgent.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/author/style-clone .gemini/skills/style-clone && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "style-clone" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/author/style-clone into .gemini/skills/style-clone/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "style-clone", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent style-clone

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add Ckokoski/AuthorAgent --skill style-clone -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Ckokoski/AuthorAgent.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/author/style-clone .github/skills/style-clone && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "style-clone" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/author/style-clone into .github/skills/style-clone/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "style-clone", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Ckokoski/AuthorAgent --skill style-clone -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent style-clone --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Ckokoski/AuthorAgent.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/author/style-clone .opencode/skills/style-clone && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "style-clone" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/author/style-clone into .opencode/skills/style-clone/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "style-clone", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: style-clone
GitHub stars: 123
Token cost: ~811 tokens
SKILL.md length: 356 words
Files: 1
Skills in repo: 23
Repo updated: Jul 11, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Analyze and match the author's unique writing voice. An agent skill from Ckokoski/AuthorAgent.

Works in 2 steps: Save the returned profile's systemPrompt… → Because the analyzer is local and fast,…
Writing & Content work in your project
SKILL.md covers How to run it, After analysis — persist the…, Style check (drift detection) and The 47 markers (what the…, plus 1 more section
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Style Clone is an agent skill from Ckokoski/AuthorAgent. Analyze and match the author's unique writing voice

Its SKILL.md is about 810 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: The Autonomous AI Writing Agent — a secure, author-focused AI for fiction and nonfiction authors (Planning, Revision, Promotion, and more). The licence is MIT.

When your agent uses it

Writing & Content work in your project

Example prompts

“/style-clone”

Workflow steps

2 steps, taken from the first numbered list in SKILL.md.

Save the returned profile's systemPrompt (and key markers) to
Because the analyzer is local and fast, re-run it on new chapters to detect

What it can do on your machine

Read from SKILL.md and the folder at commit 47e9570. 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

Style Clone loads about 811 tokens when it runs. Until then it costs about 16 tokens; SKILL.md has 356 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~16
When it runs · the whole SKILL.md, loaded when a task matches: ~811

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 Ckokoski/AuthorAgent at commit 47e9570, republished under its MIT licence (© Ckokoski). 356 words, ~811 tokens.

Download SKILL.mdSave it as .claude/skills/style-clone/SKILL.md (or your agent's skills folder).

name: style-clone
description: Analyze and match the author's unique writing voice
author: AuthorAgent
version: 1.1.0
triggers: learn my style, match my voice, style check, voice profile, analyze my writing, sound like me
permissions: file:read, file:write

Style Clone Skill

Analyze the author's writing to create a quantitative Voice Profile, then use it to match their style.

Use the gateway's analyzer — do NOT hand-roll a freeform analysis. AuthorAgent already ships a 47-marker voice analyzer as a first-class service (StyleCloneService). It is deterministic, cheap (no AI call), and returns a structured StyleProfile plus an AI system prompt you can apply to every drafting/revision task. This skill's job is to CALL that service and save the result — not to re-describe the analysis in prose. A parallel markdown-only pass would drift from the real analyzer and produce a worse, unquantified profile.

How to run it

On raw text (5,000+ words → more is better)

Call the analyzer endpoint:

POST /api/style-clone/analyze
Content-Type: application/json

{ "text": "<the author's writing sample>", "source": "manual-paste" }

Response: { "profile": <StyleProfile> } — a 47-marker fingerprint across five axes (sentence structure, vocabulary, punctuation, syntax, voice) plus a ready-to-use systemPrompt for maintaining voice.

On a whole project's completed chapters

POST /api/projects/:id/style-clone

The service gathers the project's completed writing-phase chapters, concatenates them, and analyzes the combined text. Response is the same { "profile": ... }.

After analysis — persist the profile

Save the returned profile's systemPrompt (and key markers) to workspace/soul/VOICE-PROFILE.md so future creative_writing / revision tasks inherit the voice.
Because the analyzer is local and fast, re-run it on new chapters to detect voice drift — compare the fresh markers against the saved profile.

Show full SKILL.md (142 more words)Show less

Style check (drift detection)

When asked to check new text against the author's style:

Analyze the new text via POST /api/style-clone/analyze.
Diff its markers against the saved VOICE-PROFILE.md baseline.
Report per axis: ✅ matches, ⚠️ minor drift, ❌ significant departure.
Offer specific suggestions (never rewrite without permission).

The 47 markers (what the service measures)

Sentence structure — length, variance, rhythm, fragment rate, sentences/paragraph.
Vocabulary — type-token ratio, rare-word rate, Latinate vs Germanic, Flesch reading ease, repetition index.
Punctuation — em-dash / semicolon / colon / ellipsis / comma rates, etc.
Syntax — passive voice, compound/subordinate rates, participial openers, nominalization.
Voice — contraction, filter-word, adverb, dialogue density, sensory density, hedging, intensifiers, tense mix.

Commands

"Learn my style from [text/file]" — run POST /api/style-clone/analyze and save the profile to VOICE-PROFILE.md.
"Check this against my style" — analyze the new text and diff against the saved profile.
"Show my voice profile" — display the current VOICE-PROFILE.md.

Files

Just SKILL.md in skills/author/style-clone of Ckokoski/AuthorAgent.

Open the folder on GitHubat commit 47e9570

Compare with similar skills

Style Clone 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.

Style Clone compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Style Clone this skillCkokoski/AuthorAgent	123	—	~811	Automated safety check: Pass	MIT	3 mo ago
Socialcoreyhaines31/marketingskills	54k	4 repos	~4.5k	Automated safety check: Pass	MIT	today
HumanizerAzure-Samples/interview-coach-agent-framework	172	37 repos	~5.8k	Automated safety check: Pass	MIT	today
Avoid AI Writingconorbronsdon/avoid-ai-writing	4.9k	3 repos	~8.1k	Automated safety check: Pass	MIT	yesterday
JavaScript Concept Fact Checkerleonardomso/33-js-concepts	67k	1 repos	~5k	Automated safety check: Pass	MIT	28 days ago
User-Facing Text Cleanupguillaumemeyer/watermarks-remover	24k	—	~3.5k	Automated safety check: Pass	MIT	today

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Questions about Style Clone

What does Style Clone do?

Analyze and match the author's unique writing voice. An agent skill from Ckokoski/AuthorAgent. Style Clone is an agent skill from Ckokoski/AuthorAgent.

When should I use Style Clone?

Style Clone fits situations like: writing & Content work in your project.

How do I install Style Clone in Claude Code?

Run `npx skills add Ckokoski/AuthorAgent --skill style-clone -a claude-code`. Or copy the skill folder (skills/author/style-clone in Ckokoski/AuthorAgent) into .claude/skills/style-clone in your project. Claude Code loads it when a task matches its description.

How do I install Style Clone in Codex?

Run `npx skills add Ckokoski/AuthorAgent --skill style-clone -a codex`. Or copy the skill folder (skills/author/style-clone in Ckokoski/AuthorAgent) into .agents/skills/style-clone in your project. Codex loads it when a task matches its description.

Can I use Style Clone 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 Ckokoski/AuthorAgent --skill style-clone -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/style-clone, .gemini/skills/style-clone, .github/skills/style-clone and .opencode/skills/style-clone in your project.

What does Style Clone need to run?

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

Does Style Clone 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 Style Clone 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 Style Clone use?

Style Clone is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Style Clone use?

About 811 tokens (SKILL.md is roughly 3.2k 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 Style Clone?

Skills that share tags, products or a category with Style Clone: Social (coreyhaines31/marketingskills, 54k stars), Humanizer (Azure-Samples/interview-coach-agent-framework, 172 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 Style Clone?

Ckokoski (a GitHub user) maintains it in Ckokoski/AuthorAgent, which has 123 GitHub stars. The repository holds 23 skills in this directory. The repository was last updated on July 11, 2026.

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

Install Style Clone

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Style Clone Skill

How to run it

On raw text (5,000+ words → more is better)

On a whole project's completed chapters

After analysis — persist the profile

Style check (drift detection)

The 47 markers (what the service measures)

Commands

Files

Compare with similar skills

Similar skills

More from Ckokoski/AuthorAgent

Related

Questions about Style Clone