update-config

update-config is a skill for Claude Code, Codex from lishuo0/claude-code-go. It costs 20 tokens per session (911 once invoked), scanned D, original, no licence file.

A skill for changing an agent’s settings.json file. It covers permissions, event hooks, environment variables, and rules controlling tool use.

In plain words
What is it for?
Use it to adjust what the agent is allowed to do, run actions on events, set environment values, and control tool rules.
Why use it?
It gathers common agent configuration changes in one place instead of requiring manual edits whose effects may be unclear.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/lishuo0/claude-code-go/update-config
Any agent
npx skills add lishuo0/claude-code-go --skill update-config
Clone the repo
git clone --depth 1 https://github.com/lishuo0/claude-code-go

Made for: Claude Code, Codex.

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 update-config

README.md
[![agentmods](https://agentmods.dev/badge/skills/lishuo0/claude-code-go/update-config.svg)](https://agentmods.dev/skills/lishuo0/claude-code-go/update-config)
Your own site
<a href="https://agentmods.dev/skills/lishuo0/claude-code-go/update-config"><img src="https://agentmods.dev/badge/skills/lishuo0/claude-code-go/update-config.svg" alt="Measured on agentmods" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 911 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 2 findings. Scan, not verified.
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 $0.00020 $0.00911
Opus 5 $0.00010 $0.00456
Sonnet 5 $0.00004 $0.00182
Haiku 4.5 $0.00002 $0.00091

Measured 4d ago against content hash 3147e641b828, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade D, and why

update-config scanned grade D with 2 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

when_to_use: Use when the user wants to configure automated behaviours ("from now on when X", "each time X"), grant or revoke tool permissions ("allow bash", "deny write to /etc"), set environment variables, or modify .c

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

"bash(rm -rf *)", // deny dangerous rm
internal/skill/bundled/skills/update-config/SKILL.md · 128 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. 4d ago First seen · 128 lines · 20 tokens per session scan D 3147e641b828

Subscribe to this mod's changes

update-config is a skill published in the GitHub repository lishuo0/claude-code-go (10 stars, last pushed 5mo ago), with no licence file. It adds 20 tokens to every session and 911 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it D with 2 findings (reads agent configuration directories, recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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