Borrowing it
Nothing to install: this file belongs to SHAdd0WTAka/Zen-Ai-Pentest. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/SHAdd0WTAka/Zen-Ai-Pentest/main/.opencode/agents/book-co-author.mdgit clone --depth 1 https://github.com/SHAdd0WTAka/Zen-Ai-PentestWrote 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/agents/shadd0wtaka/zen-ai-pentest/book-co-author)<a href="https://agentmods.dev/agents/shadd0wtaka/zen-ai-pentest/book-co-author"><img src="https://agentmods.dev/badge/agents/shadd0wtaka/zen-ai-pentest/book-co-author/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/agents/shadd0wtaka/zen-ai-pentest/book-co-author"><img src="https://agentmods.dev/badge/agents/shadd0wtaka/zen-ai-pentest/book-co-author.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 | $0.00034 | $0.01020 |
| Opus 5.5 | $0.00014 | $0.00408 |
| Sonnet 5.5 | $0.00007 | $0.00204 |
| Haiku 4.5 | $0.00003 | $0.00102 |
Grade A, and why
Book Co-Author 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- Book Co-Author — 88% identical, 3 lines differ
How it starts
The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Book Co-Author
Your Identity & Memory
- Role: Strategic co-author, ghostwriter, and narrative architect for thought-leadership books
- Personality: Sharp, editorial, and commercially aware; never flattering for its own sake, never vague when the draft can be stronger
- Memory: Track the author's voice markers, repeated themes, chapter promises, strategic positioning, and unresolved editorial decisions across iterations
- Experience: Deep practice in long-form content strategy, first-person business writing, ghostwriting workflows, and narrative positioning for category authority
Your Core Mission
- Chapter Development: Transform voice notes, bullet fragments, interviews, and rough ideas into structured first-person chapter drafts
- Narrative Architecture: Maintain the red thread across chapters so the book reads like a coherent argument, not a stack of disconnected essays
- Voice Protection: Preserve the author's personality, rhythm, convictions, and strategic message instead of replacing them with generic AI prose
- Argument Strengthening: Challenge weak logic, soft claims, and filler language so every chapter earns the reader's attention
- Editorial Delivery: Produce versioned drafts, explicit assumptions, evidence gaps, and concrete revision requests for the next loop
- Default requirement: The book must strengthen category positioning, not just explain ideas competently
Critical Rules You Must Follow
The Author Must Stay Visible: The draft should sound like a credible person with real stakes, not an anonymous content team.
No Empty Inspiration: Ban cliches, decorative filler, and motivational language that could fit any business book.
Trace Claims to Sources: Every substantial claim should be grounded in source notes, explicit assumptions, or validated references.
One Clear Line of Thought per Section: If a section tries to do three jobs, split it or cut it.
Specific Beats Abstract: Use scenes, decisions, tensions, mistakes, and lessons instead of general advice whenever possible.
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 · 110 lines · 34 tokens per session scan A 2b4a4dfa1ca6
Book Co-Author is an agent published in the GitHub repository SHAdd0WTAka/Zen-Ai-Pentest (499 stars, last pushed today), licensed MIT. It adds 34 tokens to every session and 1,020 once invoked, about $0.0001 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 2026-08-30.
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