Agent skill

First Chapter Hook

Analyze and rewrite first chapters for maximum reader retention using genre-specific hook patterns

Install First Chapter Hook

skills CLI

$ npx skills add Ckokoski/AuthorAgent --skill first-chapter-hook -a claude-code

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

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent first-chapter-hook --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/_archived/premium/first-chapter-hook .claude/skills/first-chapter-hook && 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 "first-chapter-hook" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/_archived/premium/first-chapter-hook into .claude/skills/first-chapter-hook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-chapter-hook", 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/_archived/premium/first-chapter-hook

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 first-chapter-hook -a codex

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

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent first-chapter-hook --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/_archived/premium/first-chapter-hook .agents/skills/first-chapter-hook && 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 "first-chapter-hook" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/_archived/premium/first-chapter-hook into .agents/skills/first-chapter-hook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-chapter-hook", 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 first-chapter-hook -a cursor

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

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent first-chapter-hook --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/_archived/premium/first-chapter-hook .cursor/skills/first-chapter-hook && 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 "first-chapter-hook" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/_archived/premium/first-chapter-hook into .cursor/skills/first-chapter-hook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-chapter-hook", 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/_archived/premium/first-chapter-hook

--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 first-chapter-hook -a gemini-cli

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

GitHub CLI

$ gh skill install Ckokoski/AuthorAgent first-chapter-hook --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/_archived/premium/first-chapter-hook .gemini/skills/first-chapter-hook && 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 "first-chapter-hook" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/_archived/premium/first-chapter-hook into .gemini/skills/first-chapter-hook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-chapter-hook", 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 first-chapter-hook

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 first-chapter-hook -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/_archived/premium/first-chapter-hook .github/skills/first-chapter-hook && 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 "first-chapter-hook" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/_archived/premium/first-chapter-hook into .github/skills/first-chapter-hook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-chapter-hook", 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 first-chapter-hook -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 first-chapter-hook --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/_archived/premium/first-chapter-hook .opencode/skills/first-chapter-hook && 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 "first-chapter-hook" agent skill from https://github.com/Ckokoski/AuthorAgent/tree/main/skills/_archived/premium/first-chapter-hook into .opencode/skills/first-chapter-hook/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-chapter-hook", 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: first-chapter-hook
GitHub stars: 123
Token cost: ~1.3k tokens
SKILL.md length: 374 words
Files: 1
Skills in repo: 23
Repo updated: Jul 11, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Analyze and rewrite first chapters for maximum reader retention using genre-specific hook patterns

Works in 4 steps: Does your opening match what readers of… → Where do you conform vs. subvert genre… → Comp title comparison (how do… → …
Media & Creative work in your project
SKILL.md covers Hook Score Analysis, Genre Hook Templates, Opening Line Workshop and Look Inside Optimizer, plus 3 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

First Chapter Hook is an agent skill from Ckokoski/AuthorAgent. Analyze and rewrite first chapters for maximum reader retention using genre-specific hook patterns

Its SKILL.md is about 1.3k 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 Media & Creative. 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

Media & Creative work in your project

Example prompts

“/first-chapter-hook”

Workflow steps

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

Does your opening match what readers of THIS genre expect?
Where do you conform vs. subvert genre conventions?
Comp title comparison (how do bestsellers in your genre open?)
"Shelf test" — Would a bookstore browser keep reading?

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

First Chapter Hook loads about 1.3k tokens when it runs. Until then it costs about 29 tokens; SKILL.md has 374 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~29
When it runs · the whole SKILL.md, loaded when a task matches: ~1.3k

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). 374 words, ~1,315 tokens.

Download SKILL.mdSave it as .claude/skills/first-chapter-hook/SKILL.md (or your agent's skills folder).

name: first-chapter-hook
description: Analyze and rewrite first chapters for maximum reader retention using genre-specific hook patterns
author: Writing Secrets
version: 1.0.0
triggers: first chapter, opening hook, hook analysis, chapter one, first page, opening line, reader retention, hook score
permissions: file:read, file:write

First Chapter Hook — Premium Skill

Analyze, score, and rewrite your first chapter to maximize reader retention. Because if your first page doesn't hook them, they never see page two.

Hook Score Analysis

Paste your first chapter and get a detailed hook assessment:

First Chapter Hook Score: "The Silent Hour" — Chapter 1

Overall Hook Score: 72/100

╔══════════════════════════════════════════════════╗
║ OPENING LINE                          ★★★★☆  8/10 ║
║ First 250 Words (Look Inside)         ★★★☆☆  6/10 ║
║ Inciting Disturbance (first 3 pages)  ★★★★☆  7/10 ║
║ Character Investment (by page 5)      ★★★★☆  8/10 ║
║ Question Engine (unanswered hooks)    ★★★☆☆  6/10 ║
║ Pacing Momentum                       ★★★★☆  7/10 ║
║ Voice Distinctiveness                 ★★★★★  9/10 ║
║ Genre Promise (signals correct genre) ★★★★☆  8/10 ║
║ Last Line Pull (chapter-end hook)     ★★★☆☆  6/10 ║
║ DNF Risk Assessment                   ★★★★☆  LOW  ║
╚══════════════════════════════════════════════════╝

Strengths:
✅ Strong voice — reader knows who's telling this story
✅ Character is immediately sympathetic (dog detail works)
✅ Genre promise is clear by paragraph 3

Weaknesses:
⚠️ First 250 words spend too long on setting — Amazon "Look Inside" readers will bounce
⚠️ The inciting disturbance doesn't land until page 4 — move to page 1-2
⚠️ Chapter ends on a soft note — needs a question or revelation to pull into Ch2
⚠️ Only 2 unanswered questions planted — aim for 4-5 micro-hooks

Genre Hook Templates

Analyze your opening against genre-specific reader expectations:

Supported Genres

Thriller/Suspense — Danger-first openings, ticking clock, in medias res
Romance — Meet-cute or emotional wound, voice-heavy, chemistry signal
Fantasy — World-hook (one fascinating detail), character-in-motion, magic tease
Mystery — Crime or anomaly, detective intro, red herring plant
Sci-Fi — World displacement, technology-as-character, status quo disruption
Literary Fiction — Voice showcase, thematic seed, emotional resonance
Horror — Normalcy with wrongness, dread buildup, false safety
YA — Voice-first, identity conflict, immediate stakes

What Gets Analyzed Per Genre

Does your opening match what readers of THIS genre expect?
Where do you conform vs. subvert genre conventions?
Comp title comparison (how do bestsellers in your genre open?)
"Shelf test" — Would a bookstore browser keep reading?

Opening Line Workshop

Generate and compare opening line alternatives:

Your current opening:
"It was a Tuesday when everything changed."

Hook Score: 3/10 — Generic, tells rather than shows, no sensory detail

Generated Alternatives (matched to your Voice Profile):

1. "The blood on my kitchen floor wasn't mine."
   Score: 9/10 — Immediate question, visceral, personal stakes

2. "I found the letter at 3 AM, tucked inside a book I'd never owned."
   Score: 8/10 — Mystery, specific detail, implies intrusion

3. "Three rules kept me alive in this city. I broke all of them before breakfast."
   Score: 8/10 — Voice-heavy, stakes, promises action

4. "The last person to live in this house disappeared on a Tuesday."
   Score: 7/10 — Keeps your Tuesday but adds danger and specificity

Pick one, or I'll generate more variations.

Look Inside Optimizer

Amazon's "Look Inside" feature typically shows your first 250-500 words. This tool optimizes specifically for that window:

Word-by-word audit of your first 250 words
Identifies backstory dumps, passive voice, info-dumps, slow pacing
Rewrites weak sections while preserving your voice
A/B comparison — your version vs. optimized version side-by-side
Conversion prediction — estimate of "Look Inside" → purchase likelihood

Show full SKILL.md (141 more words)Show less

Chapter-End Hook Generator

Analyze your chapter endings and generate stronger pull-through hooks:

Cliffhanger variants — Action cutoff, revelation, reversal
Question hooks — Plant an unanswered question
Emotion hooks — End on a feeling that demands resolution
Promise hooks — Hint at what's coming without spoiling

First Five Pages Rewrite

Full rewrite service for your opening pages:

Load your Voice Profile + Book Bible
Identify the core story promise
Restructure for maximum impact
Rewrite while maintaining your voice
Present original vs. rewrite with annotations
Author approves before any file changes

Commands

hook score — Full first chapter hook analysis
opening line workshop — Generate and compare opening lines
optimize look inside — Optimize first 250 words for Amazon
chapter end hook [number] — Strengthen any chapter's ending hook
rewrite opening — Full first-five-pages rewrite with annotations
genre hook check [genre] — Compare your opening to genre conventions

Files

Just SKILL.md in skills/_archived/premium/first-chapter-hook of Ckokoski/AuthorAgent.

Open the folder on GitHubat commit 47e9570

Compare with similar skills

First Chapter Hook 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.

First Chapter Hook compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
First Chapter Hook this skillCkokoski/AuthorAgent	123	—	~1.3k	Automated safety check: Pass	MIT	3 mo ago
Guizang Social Cardsop7418/guizang-social-card-skill	7.4k	1 repos	~7.8k	Automated safety check: Pass	AGPL-3.0	3 mo ago
Weekly Changelog Videoheygen-com/hyperframes	59k	—	~3.3k	Automated safety check: Pass	Apache-2.0	today
Anthropic Brand Stylinganthropics/skills	180k	30 repos	~559	Automated safety check: Pass	Apache-2.0	yesterday
MoneyPrinterTurbo Video Generatorharry0703/MoneyPrinterTurbo	129k	—	~2.1k	Automated safety check: Warn	MIT	today
Brag Slim Launch Video Makerlatent-spaces/brag	14k	1 repos	~1.9k	Automated safety check: Pass	MIT	3 days ago

Similar skills

Guizang Social Cards
op7418/guizang-social-card-skill
Produces social card sets for Xiaohongshu and WeChat: carousels, Live Photo motion cards and puzzle layouts, and WeChat cover pairs, rendered from single-file HTML.
7.4k GitHub starsUsed in 1 repo~7.8k tokens
Media & CreativeAuto-check passed
Weekly Changelog Video
heygen-com/hyperframes
Turns a weekly changelog markdown file into a branded HyperFrames video with voiceover, animated mock-UI scenes and captions, using fonts, background and scripts bundled in the skill.
59k GitHub stars~3.3k tokensUpdated today
Media & CreativeAuto-check passed
Anthropic Brand Styling
anthropics/skills
Official
Applies Anthropic's brand colors and fonts to artifacts such as PowerPoint slides, using fixed hex values for text and accents, Poppins headings and Lora body text.
180k GitHub starsUsed in 30 repos~559 tokens
Media & CreativeAuto-check passed
MoneyPrinterTurbo Video Generator
harry0703/MoneyPrinterTurbo
Installs and runs MoneyPrinterTurbo to turn a topic or script into a finished short video with voice-over, subtitles, stock footage and music.
129k GitHub stars~2.1k tokensUpdated today
Media & CreativeAuto-check: warnings
Brag Slim Launch Video Maker
latent-spaces/brag
Builds a short, shareable launch video with music and motion from a project directory or a website URL, using only tools already on the machine.
14k GitHub starsUsed in 1 repo~1.9k tokens
Media & CreativeAuto-check passed
HyperFrames Media Use
heygen-com/hyperframes
Finds, generates and edits media for HyperFrames video projects: music, sound effects, images, icons, logos, voiceovers, captions and color grades.
59k GitHub stars~2.4k tokensUpdated today
Media & CreativeAuto-check passed

Questions about First Chapter Hook

What does First Chapter Hook do?

Analyze and rewrite first chapters for maximum reader retention using genre-specific hook patterns. First Chapter Hook is an agent skill from Ckokoski/AuthorAgent.

When should I use First Chapter Hook?

First Chapter Hook fits situations like: media & Creative work in your project.

How do I install First Chapter Hook in Claude Code?

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

How do I install First Chapter Hook in Codex?

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

Can I use First Chapter Hook 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 first-chapter-hook -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/first-chapter-hook, .gemini/skills/first-chapter-hook, .github/skills/first-chapter-hook and .opencode/skills/first-chapter-hook in your project.

What does First Chapter Hook need to run?

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

Does First Chapter Hook 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 First Chapter Hook 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 First Chapter Hook use?

First Chapter Hook 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 First Chapter Hook use?

About 1.3k tokens (SKILL.md is roughly 5.3k 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 First Chapter Hook?

Skills that share tags, products or a category with First Chapter Hook: Guizang Social Cards (op7418/guizang-social-card-skill, 7.4k stars), Weekly Changelog Video (heygen-com/hyperframes, 59k stars), Anthropic Brand Styling (anthropics/skills, 180k stars) and MoneyPrinterTurbo Video Generator (harry0703/MoneyPrinterTurbo, 129k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains First Chapter Hook?

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 First Chapter Hook

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

First Chapter Hook — Premium Skill

Hook Score Analysis

Genre Hook Templates

Supported Genres

What Gets Analyzed Per Genre

Opening Line Workshop

Look Inside Optimizer

Chapter-End Hook Generator

First Five Pages Rewrite

Commands

Files

Compare with similar skills

Similar skills

More from Ckokoski/AuthorAgent

Related

Questions about First Chapter Hook