impact-audit

impact-audit is a skill for Claude Code from n24q02m/claude-plugins. It costs 35 tokens per session (1,520 once invoked), scanned A, a copy of impact-audit, Apache-2.0.

A tool that maps the likely effects of a proposed code change across multiple related repositories. A repository is a project’s code and history stored together.

In plain words
What is it for?
Use it to check the blast radius of renaming a symbol, changing a function parameter, or altering a return type across repositories.
Why use it?
It shows which projects, callers, and dependent changes may be affected before code is edited.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the better-code-review-graph plugin — 6 skills shipped together

Good fit Use it to check the blast radius of renaming a symbol, changing a function parameter, or altering a return type across repositories.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/n24q02m/claude-plugins/impact-audit
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 n24q02m/claude-plugins --skill impact-audit
Clone the repo
git clone --depth 1 https://github.com/n24q02m/claude-plugins

Made for: Claude Code.

Or install better-code-review-graph, the plugin that ships this one along with the rest of its 6 skills.

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 impact-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/n24q02m/claude-plugins/impact-audit.svg)](https://agentmods.dev/skills/n24q02m/claude-plugins/impact-audit)
Your own site
<a href="https://agentmods.dev/skills/n24q02m/claude-plugins/impact-audit"><img src="https://agentmods.dev/badge/skills/n24q02m/claude-plugins/impact-audit.svg" alt="Measured on agentmods" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,520 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 100% copy Near-identical to another mod 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 $0.00035 $0.01520
Opus 5 $0.00017 $0.00760
Sonnet 5 $0.00007 $0.00304
Haiku 4.5 $0.00003 $0.00152

Measured 8d ago against content hash 37453831c172, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

impact-audit 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 8d 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.

Origin

This is a copy

100% identical to impact-audit — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/better-code-review-graph/skills/impact-audit/SKILL.md · 108 lines

How it starts

The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Impact Audit

Scope a planned change before writing it. Answers "if I change this, what else has to change, and in which repositories" -- across a federation of repositories, not just the one you have open.

Run this while the change is still a proposal. Once code is written, review-delta and review-pr review what actually changed.

Command surface: run the local CLI through the coding harness shell. Examples use the installed better-code-review-graph command; from a source checkout, prefix it with uv run. No MCP mapping is required. Use better-code-review-graph query --help for the actions reference.

Steps

  1. State the change under audit in one line before querying anything -- for example "add a required tenant_id parameter to create_session". The audit is only meaningful against a specific proposed edit, because the risky part differs: adding a required parameter breaks callers, changing a return type breaks consumers, renaming breaks both plus anything resolving the name dynamically.

  2. Make sure every repository that could be affected is in the graph. A blast radius is only as wide as the graph:

    • better-code-review-graph graph stats --repo-root "<path-a>" -- confirm the graph exists and note files_count.
    • better-code-review-graph graph build --full-rebuild --repo-root "<path-a>" --roots "<path-b>" -- federate the additional repositories into the same graph. Each root is registered and its files tagged with a repo_id.
    • Without federation, a cross-repo audit will report a clean radius simply because the consumers were never indexed. Say so in the report rather than implying the change is contained.
  3. Locate every definition of the symbol with better-code-review-graph query search --search-query "<name>" --repo-root "<path-a>", leaving --repo unset so the search spans all federated repositories. Two repositories may define the same name for unrelated purposes -- resolve which definition is actually the target before tracing, and note any same-named decoys so a later reader does not re-open the question.

Read the full file on GitHub · 108 lines

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. 8d ago First seen · 108 lines · 35 tokens per session scan A 37453831c172

Subscribe to this mod's changes

impact-audit is a skill published in the GitHub repository n24q02m/claude-plugins (4 stars, last pushed today), licensed Apache-2.0. It adds 35 tokens to every session and 1,520 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to impact-audit, differing in 0 lines, and is treated as a copy.