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 Proxy2021/Enso --skill booksgit clone --depth 1 https://github.com/Proxy2021/EnsoWrote 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/proxy2021/enso/books)<a href="https://agentmods.dev/skills/proxy2021/enso/books"><img src="https://agentmods.dev/badge/skills/proxy2021/enso/books/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/proxy2021/enso/books"><img src="https://agentmods.dev/badge/skills/proxy2021/enso/books.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 | $0.00039 | $0.00450 |
| Opus 5.5 | $0.00016 | $0.00180 |
| Sonnet 5.5 | $0.00008 | $0.00090 |
| Haiku 4.5 | $0.00004 | $0.00045 |
Grade A, and why
books 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 1mo 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.
What it actually says
Books: unified library across Kindle and WeRead (微信读书). Browse, search, scan from multiple sources, view enriched metadata, deep AI podcasts, and research from your reading.
Tool Reference
enso_books_browse (primary)
Browse your book collection from all sources (Kindle + WeRead). Supports tabs (all/kindle/weread), filtering by category, search, sorting, and pagination.
Parameters:
tab(string): Source tab filter (default: all)category(string): Filter by book category (e.g., 'Evolution', 'Python Programming')query(string): Search by title or authorsortBy(string): Sort order (default: publicationDate)page(number): Page number (1-based, default: 1)pageSize(number): Books per page (default: 20)
enso_books_search
Search your book library across all sources by title, author, or keyword.
Parameters:
query(string): Search query (matches title, author, description, categories)
enso_books_scan_kindle
Scan your Amazon Kindle library via read.amazon.com. Requires Amazon login session.
enso_books_scan_weread
Scan your WeRead (微信读书) library via weread.qq.com. Requires WeChat login — use /browser to log in first.
enso_books_add
Search for a book by title, author, or ISBN across 4 sources (Google Books, WeRead, Douban, Amazon Kindle) and add it to your library.
Parameters:
query(string): Book title, author name, or ISBN to search for
enso_books_enrich
Fetch rich metadata (descriptions, ratings, categories, page counts) from Amazon product pages for Kindle books.
enso_books_update
Incremental scan — check for new books across all sources and update the Cortex.
What ships with it
14 files 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.
- app.json 11 KB
- executors/add.js 16 KB runs code
- executors/browse.js 9.5 KB runs code
- executors/discover.js 23 KB runs code
- executors/enrich.js 1.7 KB runs code
- executors/kindle_login.js 277 B runs code
- executors/reading_stats.js 6.4 KB runs code
- executors/scan_kindle.js 557 B runs code
- executors/scan_weread.js 422 B runs code
- executors/search.js 2.6 KB runs code
- executors/super_search.js 21 KB runs code
- executors/taste.js 10 KB runs code
- executors/update.js 5.3 KB runs code
- template.jsx 119 KB
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.
- 1mo ago First seen · 51 lines · 39 tokens per session scan A 817618a86d9e
books is a skill published in the GitHub repository Proxy2021/Enso (6 stars, last pushed 5mo ago), licensed MIT. It adds 39 tokens to every session and 450 once invoked, about $0.0002 per session on Opus 5.5. 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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