svg-verifier

svg-verifier is an agent for Claude Code from ChanMeng666/svg-animation-studio. It costs 64 tokens per session (1,788 once invoked), scanned A, original, MIT.

A visual checker for animated SVG files, which are images written as code and capable of motion. It opens an animation in Chrome’s developer tools and gives a short quality verdict using a five-point review.

In plain words
What is it for?
Use it after creating an SVG animation to assess its motion, timing, and visual quality. It does not fix problems.
Why use it?
It provides an independent check of whether the animation looks correct, without filling the main coding conversation with screenshots and browser logs.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents.

Good fit Use it after creating an SVG animation to assess its motion, timing, and visual quality. It does not fix problems.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/chanmeng666/svg-animation-studio/svg-verifier
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/ChanMeng666/svg-animation-studio

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 svg-verifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/chanmeng666/svg-animation-studio/svg-verifier/github.svg)](https://agentmods.dev/agents/chanmeng666/svg-animation-studio/svg-verifier)
Your own site
<a href="https://agentmods.dev/agents/chanmeng666/svg-animation-studio/svg-verifier"><img src="https://agentmods.dev/badge/agents/chanmeng666/svg-animation-studio/svg-verifier/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 svg-verifier

Your own site · 80×15
<a href="https://agentmods.dev/agents/chanmeng666/svg-animation-studio/svg-verifier"><img src="https://agentmods.dev/badge/agents/chanmeng666/svg-animation-studio/svg-verifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 64 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,788 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00064 $0.01788
Opus 5 $0.00032 $0.00894
Sonnet 5 $0.00013 $0.00358
Haiku 4.5 $0.00006 $0.00179

Measured 10d ago against content hash d4021cba5be2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

svg-verifier scanned grade A with 1 finding 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 10d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s -o /dev/null -w '%{http_code}' http://localhost:3030/api/presets
.claude/agents/svg-verifier.md · 191 lines

How it starts

The opening of the file, as written. The whole thing — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a visual quality grader for SVG animations. You exist in an isolated subagent context so that screenshots, browser logs, and intermediate notes die with you instead of polluting the parent thread. Your output to the parent thread MUST be ≤ 100 words. That word cap is the contract.

Your one job

Given a preset slug, render its SVG in chrome-devtools MCP, judge whether it looks right against a 5-point rubric, and return a short verdict.

You are NOT here to fix issues. You judge; the parent thread (usually /svg-animate) decides whether to iterate.

How you're invoked

The parent thread passes one argument: the preset slug (e.g., purple-robot-jumping). It expects you to know about the repo conventions (presets render via /api/svg?preset=<slug> on http://localhost:3030).

Workflow

Step 0 — Pre-flight: is chrome-devtools MCP actually available?

Visual verification depends on the mcp__chrome-devtools__* tools. In some contexts (headless / cron runs, a disconnected MCP server) they are NOT present or not connected. Check this BEFORE rendering anything:

  • If the mcp__chrome-devtools__* tools are absent from your tool list, OR a cheap probe such as mcp__chrome-devtools__list_pages returns a "not connected / unavailable / unknown tool" error → MCP is unavailable.

When MCP is unavailable, do NOT try to guess at the animation. Return immediately WITHOUT blocking the parent's pipeline:

VERDICT: pass
Note: Visual verification skipped — chrome-devtools MCP unavailable in this context. Not visually graded.
Issues:
Strengths:

Rationale: a missing browser is an environment limitation, not an animation defect, so fail would be wrong and would stall the /svg-animate loop. The Note: makes explicit that no grading happened — this is an honest "skipped", NOT a fabricated pass (Issues / Strengths stay empty).

Step 1 — Ensure preview server is up

curl -s -o /dev/null -w '%{http_code}' http://localhost:3030/api/presets

Read the full file on GitHub · 191 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. 10d ago First seen · 191 lines · 64 tokens per session scan A d4021cba5be2

Subscribe to this mod's changes

svg-verifier is an agent published in the GitHub repository ChanMeng666/svg-animation-studio (2 stars, last pushed 2mo ago), licensed MIT. It adds 64 tokens to every session and 1,788 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other agents, from other repositories

solana-qa-engineer

Testing and quality assurance specialist for Solana programs. Owns all testing frameworks (Mollusk, LiteSVM, Surfpool, Trident), CU profiling, security testing, and code quality standards. Use when: Writing comprehensive tests, setting up test infrastructure, debugging test failures, CU benchmarking, fuzz testing, or…

solanabr/solana-ai-kit · 75 tokens

quality-gates

Runs the repo's quality gates (lint, format, typecheck, dead-code, scoped tests) and returns a concise pass/fail report. Invoke only ONCE per slice / PR, immediately before commit — not mid-iteration, not after every file edit. Before delegating, the caller should run the project's auto-formatter on touched files…

Rijul1204/rashedul-agentic-engineering · 145 tokens

test-engineer

Use this agent when tests need to be written, debugged, or improved. For example: writing XCTest unit tests for a view model, creating XCUITest UI tests for a user flow, setting up mock services for testing, debugging a flaky test, increasing test coverage, writing snapshot tests, or configuring a test plan.

xvirobotics/metaskill · 69 tokens

mobile-engineer

React Native and Expo specialist for building Solana mobile dApps. Handles mobile wallet adapter integration, transaction signing UX, deep linking, and mobile-specific performance optimization. Use when: Building React Native or Expo mobile apps with Solana integration, implementing mobile wallet adapter flows…

solanabr/solana-ai-kit · 72 tokens

executor

Specialized agent for executing implementation plans. Reads plan, extracts Environment Context, runs tasks with TDD and checkpoints.

datit309/supergraph · 25 tokens

test-expert-csk

Test expert. Use proactively after new handler/endpoint/agent behavior is added: writes and runs unit/integration tests and guarantees the DoD's "tests are green".

byerlikaya/claude-starter-kit · 41 tokens