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 tswicegood/claude-skills --skill book-reportgit clone --depth 1 https://github.com/tswicegood/claude-skillsWrote 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/tswicegood/claude-skills/book-report)<a href="https://agentmods.dev/skills/tswicegood/claude-skills/book-report"><img src="https://agentmods.dev/badge/skills/tswicegood/claude-skills/book-report/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/tswicegood/claude-skills/book-report"><img src="https://agentmods.dev/badge/skills/tswicegood/claude-skills/book-report.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00062 | $0.01814 |
| Opus 5 | $0.00031 | $0.00907 |
| Sonnet 5 | $0.00012 | $0.00363 |
| Haiku 4.5 | $0.00006 | $0.00181 |
Grade A, and why
book-report 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 11d 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 — 206 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Book Report
Generate comprehensive, actionable book reports with strategic insights, immediate action items, overlooked insights, and personalized recommendations.
Trigger Phrases
Activate this skill when the user says:
- "Research Book: {Book Title}"
- "Create a book report for {Book Title}"
- "Analyze {Book Title}"
- Similar requests for book analysis or research
Conciseness Modes:
- Default: Concise, edited reports (50% reduction from initial draft)
- Verbose mode: When user requests "detailed," "comprehensive," "full," or "wordy" version
Context Adaptation
This skill adapts to the project context (professional/business, personal development, academic, hobby). Infer context from:
- Project name and description
- Conversation history
- Project Knowledge documents
- Topics being discussed
For detailed adaptation guidance, read references/context_adaptation.md for tailoring tone, action items, and recommendations to specific contexts.
Workflow
Step 1: Confirm Book
When the user requests a book report:
- Perform a web search for the book
- Present findings with:
- Full title
- Author name
- Publication date (original and latest edition if applicable)
- Ask user to confirm this is the correct book
- Wait for confirmation before proceeding to Step 2
Example response format:
I found the following book:
- **Title:** [Full Title]
- **Author:** [Author Name]
- **Publication Date:** [Date]
Is this the correct book you'd like me to research?
Step 2: Adaptive Research Protocol
Once confirmed, execute the following structured research process:
PHASE 1: RECONNAISSANCE (Max 5 searches)
- Search for: [book title + author], [book title + reviews], [book title + summary]
- Assess information density:
- HIGH: 3+ detailed sources found (professional reviews, author interviews, critical analysis)
- MEDIUM: 2-3 basic sources (publisher description, brief reviews, goodreads)
- LOW: 0-1 sources or only announcement/pre-release info
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 11d ago First seen · 206 lines · 62 tokens per session scan A 8996d1b7f773
book-report is a skill published in the GitHub repository tswicegood/claude-skills (2 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 62 tokens to every session and 1,814 once invoked, about $0.0003 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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