What is config-writer-agent?

A configuration-writing agent that creates CLAUDE.md instructions and hooks after checking the tools installed in a project. CLAUDE.md is a file that tells Claude Code how to work in that project, while hooks run actions at specific points.

Use it to generate CLAUDE.md and hook configuration after MCP connections and plugins have been installed.

It avoids writing project instructions and automation settings without knowing which tools are available.

config-writer-agent — Agent for Claude Code by razpetel/buckle-up

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/razpetel/buckle-up

Made for: Claude Code.

Or install buckle-up, the plugin that ships this one along with the rest of its 1 skill, 3 agents.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/razpetel/buckle-up/config-writer-agent/github.svg)](https://agentmods.dev/agents/razpetel/buckle-up/config-writer-agent)

Your own site

<a href="https://agentmods.dev/agents/razpetel/buckle-up/config-writer-agent"><img src="https://agentmods.dev/badge/agents/razpetel/buckle-up/config-writer-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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/razpetel/buckle-up/config-writer-agent"><img src="https://agentmods.dev/badge/agents/razpetel/buckle-up/config-writer-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 94 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 1,723 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.

Model	Per session	Once invoked
Fable 5.1	$0.00094	$0.01723
Opus 5.5	$0.00038	$0.00689
Sonnet 5.5	$0.00019	$0.00345
Haiku 4.5	$0.00009	$0.00172

Measured 2mo ago against content hash 03762b564664, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

config-writer-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 2mo 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.

agents/config-writer-agent.md · 263 lines

The source is not reproduced here

No licence file

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.

2mo ago First seen · 263 lines · 94 tokens per session scan A 03762b564664

Subscribe to this mod's changes

config-writer-agent is an agent published in the GitHub repository razpetel/buckle-up (10 stars, last pushed 8mo ago), with no licence file. It adds 94 tokens to every session and 1,723 once invoked, about $0.0004 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 2026-08-31.

Building agents

config-writer-agent next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
config-writer-agentrazpetel/buckle-up	Agent	10	8mo ago	none	A	94	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	100k	today	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	3d ago	MIT	A	33	Claude Code
AVM Owner Triagegithub/awesome-copilot	Agent	41k	today	MIT	A	61	Claude Code
Ultimate Transparent Thinking Beast Modegithub/awesome-copilot	Agent	41k	today	MIT	A	11	Claude Code
WinForms Expertgithub/awesome-copilot	Agent	41k	today	MIT	A	19	Claude Code
Context7-Expertgithub/awesome-copilot	Agent	41k	today	MIT	A	22	Claude Code