seo-performance

seo-performance is an agent for Claude Code from asale-ai/seo-geo-skill. It costs 18 tokens per session (1,121 once invoked), scanned A, original, no licence file.

A performance-analysis agent for measuring Core Web Vitals and page-load performance. Core Web Vitals are Google's measures of how quickly a page loads, responds, and becomes visually stable.

In plain words
What is it for?
Use it to evaluate page speed and review Core Web Vitals.
Why use it?
It helps identify slow loading and other website performance problems using standard measures.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to evaluate page speed and review Core Web Vitals.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/asale-ai/seo-geo-skill/seo-performance
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/asale-ai/seo-geo-skill

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 seo-performance

README.md
[![agentmods](https://agentmods.dev/badge/agents/asale-ai/seo-geo-skill/seo-performance/github.svg)](https://agentmods.dev/agents/asale-ai/seo-geo-skill/seo-performance)
Your own site
<a href="https://agentmods.dev/agents/asale-ai/seo-geo-skill/seo-performance"><img src="https://agentmods.dev/badge/agents/asale-ai/seo-geo-skill/seo-performance/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 seo-performance

Your own site · 80×15
<a href="https://agentmods.dev/agents/asale-ai/seo-geo-skill/seo-performance"><img src="https://agentmods.dev/badge/agents/asale-ai/seo-geo-skill/seo-performance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,121 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 unknown 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 $0.00018 $0.01121
Opus 5 $0.00009 $0.00561
Sonnet 5 $0.00004 $0.00224
Haiku 4.5 $0.00002 $0.00112

Measured 9d ago against content hash e316b183b893, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

seo-performance 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 9d 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.

agents/seo-performance.md · 102 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 9d ago First seen · 102 lines · 18 tokens per session scan A e316b183b893

Subscribe to this mod's changes

seo-performance is an agent published in the GitHub repository asale-ai/seo-geo-skill (6 stars, last pushed 7d ago), with no licence file. It adds 18 tokens to every session and 1,121 once invoked, about $0.0001 per session on Opus 5. 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.

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