g-update

g-update is a skill for Claude Code from onlygian/G-Forge. It costs 69 tokens per session (3,207 once invoked), scanned C, original, GPL-3.0.

A maintenance action for G-Forge-managed project files, including instructions, agents, architecture rules, hooks, and the pre-commit check.

In plain words
What is it for?
Use it to bring the project's G-Forge configuration back into line after changes.
Why use it?
It prevents outdated cached information from overwriting newer GitHub changes and limits edits to G-Forge-marked content.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the g-forge plugin — 38 skills, 1 command, 69 agents shipped together

Good fit Use it to bring the project's G-Forge configuration back into line after changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/onlygian/g-forge/g-update
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.

Any agent
npx skills add onlygian/G-Forge --skill g-update
Clone the repo
git clone --depth 1 https://github.com/onlygian/G-Forge

Made for: Claude Code.

Or install g-forge, the plugin that ships this one along with the rest of its 38 skills, 1 command, 69 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.

agentmods badge for g-update

README.md
[![agentmods](https://agentmods.dev/badge/skills/onlygian/g-forge/g-update.svg)](https://agentmods.dev/skills/onlygian/g-forge/g-update)
Your own site
<a href="https://agentmods.dev/skills/onlygian/g-forge/g-update"><img src="https://agentmods.dev/badge/skills/onlygian/g-forge/g-update.svg" alt="Measured on agentmods" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,207 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 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 $0.00069 $0.03207
Opus 5 $0.00034 $0.01604
Sonnet 5 $0.00014 $0.00641
Haiku 4.5 $0.00007 $0.00321

Measured 4d ago against content hash f7542abba024, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade C, and why

g-update scanned grade C 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/inventory.sh, scripts/preflight.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

`[plugin-root]` = the script's `PLUGIN_ROOT` (self-host: the project root; consumer: the parent of `skills/` under the cache Glob). On `PLUGIN_ROOT: MISSING`, tell the developer: "Could not find the G-Forge plugin in ~/.

Enumerates other installed skillsmediumAgent snooping

Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.

**6c** — installed architecture-skill copies at `.claude/skills/architecture-[stack]/SKILL.md` (written by `/g-specialize`, its "Also after writing each agent file" step). Enumerate instances from disk — `ls -d .claude/s
skills/g-update/SKILL.md · 145 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 145 lines · 69 tokens per session scan C f7542abba024

Subscribe to this mod's changes

g-update is a skill published in the GitHub repository onlygian/G-Forge (3 stars, last pushed 2d ago), licensed GPL-3.0. It adds 69 tokens to every session and 3,207 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 2 findings (reads agent configuration directories, enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.