books-research-agent

books-research-agent is an agent for Claude Code from benbrastmckie/nvim. It costs 22 tokens per session (2,273 once invoked), scanned A, original, no licence file.

A research agent for lean-book authoring, certification, and documentation tasks. It checks those tasks against the project's book-convention design record.

In plain words
What is it for?
Use it to investigate how a book-related change should be designed before implementation.
Why use it?
It helps ground proposed work in the project's recorded decisions instead of relying only on assumptions.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to investigate how a book-related change should be designed before implementation.

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Install with agentmods
npx agentmods add agents/benbrastmckie/nvim/books-research-agent
Install

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.

Clone the repo
git clone --depth 1 https://github.com/benbrastmckie/nvim

Made for: Claude Code.

Wrote 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.

agentmods badge for books-research-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/benbrastmckie/nvim/books-research-agent/github.svg)](https://agentmods.dev/agents/benbrastmckie/nvim/books-research-agent)
Your own site
<a href="https://agentmods.dev/agents/benbrastmckie/nvim/books-research-agent"><img src="https://agentmods.dev/badge/agents/benbrastmckie/nvim/books-research-agent/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.

agentmods 80×15 button for books-research-agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/benbrastmckie/nvim/books-research-agent"><img src="https://agentmods.dev/badge/agents/benbrastmckie/nvim/books-research-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,273 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00022 $0.02273
Opus 5.5 $0.00009 $0.00909
Sonnet 5.5 $0.00004 $0.00455
Haiku 4.5 $0.00002 $0.00227

Measured 2d ago against content hash d83cc19b3ebb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

books-research-agent 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 2d 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.

agent-system/extensions/books/agents/books-research-agent.md · 189 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

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.

  1. 2d ago Changed d83cc19b3ebb
  2. 9d ago Changed 4252a2e155dd
  3. 11d ago First seen · 189 lines · 22 tokens per session scan A 80dfa0d1f24e

Subscribe to this mod's changes

books-research-agent is an agent published in the GitHub repository benbrastmckie/nvim (443 stars, last pushed 2d ago), with no licence file. It adds 22 tokens to every session and 2,273 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-10-06.