g-blast-radius

g-blast-radius is a skill for Claude Code from onlygian/G-Forge. It costs 68 tokens per session (1,526 once invoked), scanned A, original, GPL-3.0.

A change-impact analysis tool that maps which files depend on a planned change and which files it depends on. It also estimates file volatility from commit history and gives the change a low, moderate, or wide impact rating.

In plain words
What is it for?
Use it with a file path, feature name, or group of paths when planning a change and assessing its likely scope.
Why use it?
It helps reveal work that may be affected before code is changed, reducing surprises in connected parts of the project.

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

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/onlygian/g-forge/g-blast-radius
Any agent
npx skills add onlygian/G-Forge --skill g-blast-radius
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-blast-radius

README.md
[![agentmods](https://agentmods.dev/badge/skills/onlygian/g-forge/g-blast-radius.svg)](https://agentmods.dev/skills/onlygian/g-forge/g-blast-radius)
Your own site
<a href="https://agentmods.dev/skills/onlygian/g-forge/g-blast-radius"><img src="https://agentmods.dev/badge/skills/onlygian/g-forge/g-blast-radius.svg" alt="Measured on agentmods" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,526 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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 5.1 $0.00068 $0.01526
Opus 5 $0.00034 $0.00763
Sonnet 5 $0.00014 $0.00305
Haiku 4.5 $0.00007 $0.00153

Measured 3d ago against content hash d9af7009e4cc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

g-blast-radius 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 3d 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.

skills/g-blast-radius/SKILL.md · 139 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

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. 3d ago First seen · 139 lines · 68 tokens per session scan A d9af7009e4cc

Subscribe to this mod's changes

g-blast-radius is a skill published in the GitHub repository onlygian/G-Forge (3 stars, last pushed 4d ago), licensed GPL-3.0. It adds 68 tokens to every session and 1,526 once invoked, about $0.0003 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 2026-09-03.

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