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 Ckokoski/AuthorAgent --skill book-biblegit clone --depth 1 https://github.com/Ckokoski/AuthorAgentWrote 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/ckokoski/authoragent/book-bible)<a href="https://agentmods.dev/skills/ckokoski/authoragent/book-bible"><img src="https://agentmods.dev/badge/skills/ckokoski/authoragent/book-bible/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/ckokoski/authoragent/book-bible"><img src="https://agentmods.dev/badge/skills/ckokoski/authoragent/book-bible.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 | $0.00017 | $0.00488 |
| Opus 5 | $0.00009 | $0.00244 |
| Sonnet 5 | $0.00003 | $0.00098 |
| Haiku 4.5 | $0.00002 | $0.00049 |
Grade A, and why
book-bible 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
Book Bible Skill
Maintain a living reference document for the book's world. Every fact, character detail, and timeline event goes here so nothing contradicts itself.
Book Bible Sections
Characters
For each character track:
- Name (full, nicknames, aliases)
- Physical: Age, appearance, distinguishing features
- Personality: Core traits, flaws, quirks, speech patterns
- Background: History, education, occupation, family
- Motivation: What they want (surface), what they need (deep)
- Arc: How they change from beginning to end
- Relationships: Connections to other characters
- Voice Notes: How they talk differently from others
- First Appearance: Chapter/scene where introduced
Timeline
- Chronological order of events (in-story time)
- Character ages at key events
- Season/weather tracking
- Day-of-week tracking (if relevant)
- Travel time between locations
Locations
- Physical description
- Sensory details (sounds, smells, atmosphere)
- What happens there in the story
- Rules of the place
- Map references if applicable
World Rules
- Magic system rules (fantasy)
- Technology constraints (sci-fi)
- Social structures and hierarchies
- Economic systems
- Legal/political systems
- What's possible and impossible
Items & Objects
- Significant objects and their descriptions
- Where they are at any given time
- Symbolic meaning
Consistency Checks
When the author writes new content, automatically check against the Book Bible:
- ✅ Character descriptions match
- ✅ Timeline events don't contradict
- ✅ Location details are consistent
- ✅ World rules aren't broken
- ⚠️ Flag any conflicts found
Storage
Save to workspace/memory/book-bible/[project-id]/
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 · 75 lines · 17 tokens per session scan A e0345c79aa26
book-bible is a skill published in the GitHub repository Ckokoski/AuthorAgent (106 stars, last pushed 2mo ago), licensed MIT. It adds 17 tokens to every session and 488 once invoked, about $0.0001 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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