Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add fullo/claude-writing-assistant-skill/plugin install writing-assistantWrote 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/commands/fullo/claude-writing-assistant-skill/book-init)<a href="https://agentmods.dev/commands/fullo/claude-writing-assistant-skill/book-init"><img src="https://agentmods.dev/badge/commands/fullo/claude-writing-assistant-skill/book-init.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 5.1 | $0.00009 | $0.01295 |
| Opus 5 | $0.00005 | $0.00647 |
| Sonnet 5 | $0.00002 | $0.00259 |
| Haiku 4.5 | $0.00001 | $0.00129 |
Grade A, and why
book-init 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 6d 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 — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Crea la struttura completa per un nuovo progetto libro.
Il nome del libro è $1. Creare la directory all'interno della directory corrente (che dovrebbe essere la root libri/ o analoga).
Configurazione iniziale
Prima di creare i file, chiedere all'utente (se non specificato nel comando):
- Titolo completo del libro
- Autore (nome e affiliazione)
- Lingua del libro (default: italiano)
- Piattaforma di pubblicazione (default: LeanPub/Markua)
- Serie (opzionale — lasciare vuoto se libro singolo)
- Tono target (default: conversazionale-esperto)
Se l'utente non specifica un valore, usare i default indicati. Se l'utente fornisce tutto nel comando, procedere senza chiedere.
Struttura da creare
A livello serie (directory corrente):
libri/
├── cross-reference.md ← mappa cross-reference (creato se non esiste e se c'è una serie)
└── $1/
├── capitoli/ ← manuscript (LeanPub o altro)
│ └── book.txt ← elenco capitoli (vuoto, da compilare)
├── fonti/ ← fonti di riferimento
│ └── fonti.md ← indice fonti
├── assets/ ← materiale di supporto
│ ├── images/ ← immagini e screenshot
│ ├── exercises/ ← JSON esercizi, carte
│ └── templates/ ← template, canvas
├── book-config.md ← metadati e configurazione del libro
└── stato-libro.md ← generato automaticamente da /book-status
File da popolare
book.txt
Creare vuoto con un commento:
# Elenco capitoli — aggiungere un file .md per riga
# Esempio:
# ch01-introduzione.md
# ch02-hook.md
fonti/fonti.md
# Fonti di riferimento — $1
Nessuna fonte ancora indicizzata. Usare `/book-source [file-o-url]` per aggiungere fonti.
book-config.md
Leggere il template da ${CLAUDE_PLUGIN_ROOT}/skills/book-coherence/references/book-config-template.md e generare un book-config.md con la struttura completa. Pre-compilare con i valori forniti dall'utente (o i default):
- Serie: [valore utente, o vuoto se non specificato]
- Autore: [valore utente]
- Lingua: [valore utente, default: italiano]
- Piattaforma: [valore utente, default: LeanPub (Markua)]
- Stato: bozza
- Tono target: [valore utente, default: conversazionale-esperto]
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.
- 6d ago First seen · 125 lines · 9 tokens per session scan A d0f10d1b6644
book-init is a command published in the GitHub repository fullo/claude-writing-assistant-skill (2 stars, last pushed 4mo ago), licensed MIT. It adds 9 tokens to every session and 1,295 once invoked, about $0.0000 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.
Other commands, from other repositories
checklist
Generate a custom checklist for the current feature based on user requirements.
clarify
Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec.
specify
Create or update the feature specification from a natural language feature description.
converge
Assess the current codebase against the feature's spec, plan, and tasks, then append any remaining unbuilt work as new tasks to tasks.md so implement can complete it.
implement
Execute the implementation plan by processing and executing all tasks defined in tasks.md.
analyze
Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.