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 digital-stoic-org/agent-skills --skill convert-epubgit clone --depth 1 https://github.com/digital-stoic-org/agent-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/digital-stoic-org/agent-skills/convert-epub)<a href="https://agentmods.dev/skills/digital-stoic-org/agent-skills/convert-epub"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/convert-epub/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/digital-stoic-org/agent-skills/convert-epub"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/convert-epub.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 | $0.00055 | $0.00291 |
| Opus 5 | $0.00028 | $0.00146 |
| Sonnet 5 | $0.00011 | $0.00058 |
| Haiku 4.5 | $0.00006 | $0.00029 |
Grade A, and why
convert-epub 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 10d 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
Convert EPUB → Markdown
Convert the EPUB file at $1 to clean markdown format optimized for Claude Code context.
Steps
- Install dependency: Use
toolsmith:install-dependencyskill to ensureepub-to-markdownis installed - Parse arguments: Input file
$1(required), output dir$2(optional, defaults to./.tmp/epub-converted/) - Convert: Run
epub-to-markdown convert "$1"with--multiple-filesflag (one file per chapter) - Report: Output location, file structure, chapter count, preview of table of contents
Goal
Extract clean, structured markdown for LLM context (analysis, summarization, Q&A) — NOT for visual rendering.
Output to .tmp/ to keep excluded from git/searches per Praxis rules.
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.
- 10d ago First seen · 27 lines · 55 tokens per session scan A 25a143293c1a
convert-epub is a skill published in the GitHub repository digital-stoic-org/agent-skills (20 stars, last pushed 4d ago), licensed MIT. It adds 55 tokens to every session and 291 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 2026-08-30.
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