What is impact-check?

A file-impact analysis command that examines what depends on a file and what the file depends on.

Use it before changing a file to identify affected modules, important dependent functions, imports, coupling concerns, and tests to run.

It helps reveal indirect breakage risks before you edit shared code.

How suitable-adventures/suitable-loop configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to suitable-adventures/suitable-loop. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/suitable-adventures/suitable-loop/main/.claude/commands/impact-check.md

Clone the repo

git clone --depth 1 https://github.com/suitable-adventures/suitable-loop

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/commands/suitable-adventures/suitable-loop/impact-check/github.svg)](https://agentmods.dev/commands/suitable-adventures/suitable-loop/impact-check)

Your own site

<a href="https://agentmods.dev/commands/suitable-adventures/suitable-loop/impact-check"><img src="https://agentmods.dev/badge/commands/suitable-adventures/suitable-loop/impact-check/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/commands/suitable-adventures/suitable-loop/impact-check"><img src="https://agentmods.dev/badge/commands/suitable-adventures/suitable-loop/impact-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 170 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 original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00170
Opus 5.5	$0.00000	$0.00068
Sonnet 5.5	$0.00000	$0.00034
Haiku 4.5	$0.00000	$0.00017

Measured 2mo ago against content hash 71fd5b16c6fd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

impact-check 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 2mo 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.

.claude/commands/impact-check.md · 17 lines

What it actually says

I'm about to change the file: $ARGUMENTS

Before I make changes, analyze the impact.

Steps:

Use blast_radius on the specified file to find all transitively affected files
Use query_entity on key functions/classes in the file to understand their relationships
Use find_callers on the most important functions to see what depends on them
Use dependency_tree on the file to see its import chain

Then give me:

The blast radius: how many files are affected if this file breaks
A list of the affected files, grouped by app/module
The key functions in this file and who calls them
What this file depends on (its imports)
Practical advice: what to test after making changes, what could break, any coupling concerns

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.

2mo ago First seen · 17 lines · 0 tokens per session scan A 71fd5b16c6fd

Subscribe to this mod's changes

impact-check is a command published in the GitHub repository suitable-adventures/suitable-loop (0 stars, last pushed 7mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 170 tokens. 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 2026-08-31.

Debugging

impact-check next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
impact-checksuitable-adventures/suitable-loop	Command	0	7mo ago	MIT	A	0	Claude Code
qa-changesOpenHands/extensions	Command	176	yesterday	MIT	A	63	Claude Code
react-nativegetsentry/toolkit	Command	957	yesterday	none	A	0	Claude Code
auditar-cascadingluanpdd/kit-mcp	Command	5	4d ago	MIT	A	54	Claude Code
http-serviceMadAppGang/magus	Command	14	yesterday	MIT	A	27	Claude Code
doctordoncheli/don-cheli-sdd	Command	59	2mo ago	Apache-2.0	A	76	Claude Code
doctorfatihkan/badi	Command	7	1mo ago	MIT	A	0	Claude Code

suitable-loop: Command for Claude Code