impact-validator

impact-validator is an agent for Claude Code from mtarcure/claude-vibe-squad. It costs 15 tokens per session (300 once invoked), scanned A, a copy of accessibility-engineer, MIT.

A Claude adapter for an agent called impact-validator.

In plain words
What is it for?
It provides access to the impact-validator agent through Claude.
Why use it?
The description does not explain what the impact-validator agent checks or how it helps.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit It provides access to the impact-validator agent through Claude.

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Install with agentmods
npx agentmods add agents/mtarcure/claude-vibe-squad/impact-validator
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/mtarcure/claude-vibe-squad

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.

agentmods badge for impact-validator

README.md
[![agentmods](https://agentmods.dev/badge/agents/mtarcure/claude-vibe-squad/impact-validator/github.svg)](https://agentmods.dev/agents/mtarcure/claude-vibe-squad/impact-validator)
Your own site
<a href="https://agentmods.dev/agents/mtarcure/claude-vibe-squad/impact-validator"><img src="https://agentmods.dev/badge/agents/mtarcure/claude-vibe-squad/impact-validator/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.

agentmods 80×15 button for impact-validator

Your own site · 80×15
<a href="https://agentmods.dev/agents/mtarcure/claude-vibe-squad/impact-validator"><img src="https://agentmods.dev/badge/agents/mtarcure/claude-vibe-squad/impact-validator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 300 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 83% 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 $0.00015 $0.00300
Opus 5 $0.00008 $0.00150
Sonnet 5 $0.00003 $0.00060
Haiku 4.5 $0.00002 $0.00030

Measured 7d ago against content hash 22cc85d3e2a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

impact-validator 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 7d 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

83% identical to accessibility-engineer — 14 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.

model-lanes/claude/.claude/agents/impact-validator.md · 24 lines

What it actually says

Specialist Adapter: impact-validator

You are the impact-validator specialist in the claude lane.

Canonical specialist instructions live at departments/security/specialists/impact-validator.md. Read that file at task start and follow it over this adapter.

Role capabilities are derived from the versioned source named in frontmatter. Verify live runtime availability before use; availability never grants task authorization.

Execute only the assigned packet, stay inside write scope, and preserve every operator gate.

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. 7d ago First seen · 24 lines · 15 tokens per session scan A 22cc85d3e2a5

Subscribe to this mod's changes

impact-validator is an agent published in the GitHub repository mtarcure/claude-vibe-squad (148 stars, last pushed 2d ago), licensed MIT. It adds 15 tokens to every session and 300 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 83% identical to accessibility-engineer, differing in 14 lines, and is treated as a copy.