A small code change can affect other parts of a project in ways that a diff or a list of callers may not reveal. Running code provides evidence instead of relying only on a written explanation.

blast-radius — Plugin for Claude Code by Parcha-ai/parcha-skills

blast-radius

blast-radius is a plugin for Claude Code from Parcha-ai/parcha-skills. Its manifest loads nothing; the 1 skill it bundles cost 61 tokens per session together, scanned A, original, MIT.

A change-impact checker that looks for breakage outside the lines changed in a code diff and tests important safety assumptions by running real code.

In plain words

What is it for?: Use it before shipping or while reviewing a change to investigate what it could break and verify the key safety facts.
Why use it?: A small code change can affect other parts of a project in ways that a diff or a list of callers may not reveal. Running code provides evidence instead of relying only on a written explanation.

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it before shipping or while reviewing a change to investigate what it could break and verify the key safety facts.

Compare 6 plugins from other repositories ↓

Install in Claude Code

/plugin marketplace add Parcha-ai/parcha-skills

/plugin install blast-radius

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/Parcha-ai/parcha-skills

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.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/parcha-ai/parcha-skills/blast-radius/github.svg)](https://agentmods.dev/plugins/parcha-ai/parcha-skills/blast-radius)

Your own site

<a href="https://agentmods.dev/plugins/parcha-ai/parcha-skills/blast-radius"><img src="https://agentmods.dev/badge/plugins/parcha-ai/parcha-skills/blast-radius/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/plugins/parcha-ai/parcha-skills/blast-radius"><img src="https://agentmods.dev/badge/plugins/parcha-ai/parcha-skills/blast-radius.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 1 skill cost 61 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

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 1mo 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.

blast-radius/.claude-plugin/plugin.json · 10 lines

What it actually says

{
  "name": "blast-radius",
  "version": "0.1.0",
  "description": "Find what a diff breaks beyond the diff and prove the one safety fact by running real code instead of writing it up.",
  "author": {
    "name": "Lauren Tan",
    "url": "https://github.com/cursor/plugins/tree/main/pstack/skills/blast-radius"
  }
}

Contents

What it installs

The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 61 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Skill blast-radius A 61 tokens

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.

1mo ago First seen · 10 lines scan A ee970a1ba2c7

Subscribe to this mod's changes

blast-radius is a plugin published in the GitHub repository Parcha-ai/parcha-skills (126 stars, last pushed 15d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-09-17.

Code review Debugging

blast-radius next to 6 plugins from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
blast-radiusParcha-ai/parcha-skills	Plugin	126	15d ago	MIT	A	—	Claude Code
gaussian-engineeringjaccen/Awesome-Gaussian-Skills	Plugin	180	today	Apache-2.0	A	—	Claude Code
graph-it-livemagic5644/Graph-It-Live	Plugin	63	yesterday	MIT	A	—	Claude Code
code-reviewccplugins/awesome-claude-code-plugins	Plugin	998	2mo ago	Apache-2.0	A	—	Claude Code
kinfirelock-ai/kin	Plugin	68	1mo ago	Apache-2.0	A	—	Gemini CLI
memtrace-skillssyncable-dev/memtrace-public	Plugin	511	today	none	A	—	Claude Code
fresh-eyes-reviewa8cteam51/claude-code-plugins	Plugin	6	today	MIT	A	—	Claude Code