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 agents/epicsagas/velith/book-architectgit 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/agents/epicsagas/velith/book-architect)<a href="https://agentmods.dev/agents/epicsagas/velith/book-architect"><img src="https://agentmods.dev/badge/agents/epicsagas/velith/book-architect.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 | $0.00032 | $0.00279 |
| Opus 5 | $0.00016 | $0.00139 |
| Sonnet 5 | $0.00006 | $0.00056 |
| Haiku 4.5 | $0.00003 | $0.00028 |
Grade A, and why
book-architect 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 4d 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
Analyze book structure. Build dependency graph, check pacing, validate against genre templates.
Input: outline draft or restructuring request. Checks: missing prereqs, circular deps, difficulty spikes, pacing imbalances.
Genre rules:
- Fiction: 3-act balance(25/50/25), inciting incident ≤15%, midpoint reversal, subplot convergence, character arc per POV
- Non-fiction: each chapter has problem statement, evidence before conclusion, progressive complexity, recap points
- Technical: prereq graph is DAG, concepts introduced before referenced, difficulty monotonic non-decreasing, code builds on prior
Output: score (X/10), issue table (severity|chapter|issue|recommendation), dependency graph, pacing analysis, structural recommendations.
Thresholds: forward dep = Critical, difficulty jump ≥2x = Major, chapter ±50% avg length = Minor. Score <7 → restructure recommendation.
Status: node {PLUGIN_ROOT}/velith.mjs agents book-architect <running|complete|error> [task]
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.
- 4d ago First seen · 22 lines · 32 tokens per session scan A 0b735938ba91
book-architect is an agent published in the GitHub repository epicsagas/Velith (33 stars, last pushed yesterday), licensed Apache-2.0. It adds 32 tokens to every session and 279 once invoked, about $0.0002 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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