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 agentmods add skills/epicsagas/velith/book-editnpx skills add epicsagas/Velith --skill book-editgit clone --depth 1 https://github.com/epicsagas/VelithWrote 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/epicsagas/velith/book-edit)<a href="https://agentmods.dev/skills/epicsagas/velith/book-edit"><img src="https://agentmods.dev/badge/skills/epicsagas/velith/book-edit.svg" alt="Measured on agentmods" 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 | $0.00053 | $0.01609 |
| Opus 5 | $0.00026 | $0.00805 |
| Sonnet 5 | $0.00011 | $0.00322 |
| Haiku 4.5 | $0.00005 | $0.00161 |
Grade A, and why
book-edit 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 today.
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 — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Phase 4: Editing
Goal: a manuscript that passes a cold read by its target readers. Editing here means rewriting. Each stage snapshots the drafts, changes them, and files a report of what changed and why.
Read ${CLAUDE_PLUGIN_ROOT}/skills/loom/quality-bar.md. Every stage reads the whole manuscript, STYLE.md (voice lock passages), bible.md, and the genre skill.
Refuse to run if any outlined chapter is missing. Editing an incomplete book fixes the wrong things.
Stages
| # | Stage | Who | Rewrites? | Report |
|---|---|---|---|---|
| 0 | Fact check (nonfiction, technical, academic, and fiction with real-world claims) | fact-checker |
Yes, removes or corrects unverifiable claims | edits/00-fact-check.md |
| 1 | Editorial assessment | skill (you) | No | edits/01-assessment.md |
| 2 | Developmental edit | skill + chapter-writer for rewrites, continuity-editor after |
Yes, chapter-level | edits/02-developmental.md |
| 3 | Line edit | style-doctor then skill |
Yes, paragraph and sentence level | edits/03-line-edit.md |
| 4 | Copy edit | skill | Yes, mechanical | edits/04-copy-edit.md |
| 5 | Proofread | skill | Yes, final | edits/05-proofread.md |
| 6 | Readiness | beta-reader |
No | edits/06-readiness-report.md (also edits/readiness-report.md) |
Before every rewriting stage: node ${CLAUDE_PLUGIN_ROOT}/velith.mjs snapshot [project-dir] stage{N}.
After each stage: update chapter frontmatter status: edited, bump revision, run scan.
Stage 0 — Fact check
Invoke fact-checker. It builds a claim ledger, verifies against sources/ and the web, and edits drafts to remove or correct what cannot be verified. It also reconciles every figure's labels and plotted values with the text and the data files in sources/. A claim that would embarrass the author in a review is a Critical. Fiction runs this stage only if the bible flags real-world claims (real places, real history, real science). Stage 0 runs before anything else because a developmental edit built on a false claim is wasted.
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.
- today Changed · +64 lines · +24 tokens per session fce9f30b0919
- 5d ago First seen · 32 lines · 29 tokens per session scan A ea6d6cee1985
book-edit is a skill published in the GitHub repository epicsagas/Velith (33 stars, last pushed today), licensed Apache-2.0. It adds 53 tokens to every session and 1,609 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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