pseo-performance

pseo-performance is a skill for Claude Code from karrolcia/hippocampus. It costs 69 tokens per session (2,455 once invoked), scanned A, original, AGPL-3.0.

A set of instructions for improving a programmatic SEO application: a site that creates many pages from structured data. It covers page speed, Core Web Vitals, generating pages, caching, and scaling beyond 1,000 pages.

In plain words
What is it for?
It is for reviewing and improving static generation, incremental page updates, JavaScript bundle size, caching, and large-scale page delivery.
Why use it?
It helps address slow builds, oversized pages, poor speed scores, and performance problems that appear as the site grows.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

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.

agentmods
npx agentmods add skills/karrolcia/hippocampus/pseo-performance
Any agent
npx skills add karrolcia/hippocampus --skill pseo-performance
Clone the repo
git clone --depth 1 https://github.com/karrolcia/hippocampus

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 pseo-performance

README.md
[![agentmods](https://agentmods.dev/badge/skills/karrolcia/hippocampus/pseo-performance.svg)](https://agentmods.dev/skills/karrolcia/hippocampus/pseo-performance)
Your own site
<a href="https://agentmods.dev/skills/karrolcia/hippocampus/pseo-performance"><img src="https://agentmods.dev/badge/skills/karrolcia/hippocampus/pseo-performance.svg" alt="Measured on agentmods" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,455 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00069 $0.02455
Opus 5 $0.00034 $0.01228
Sonnet 5 $0.00014 $0.00491
Haiku 4.5 $0.00007 $0.00246

Measured 6d ago against content hash 2d5f4f49677c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

pseo-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 6d 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/skills/pseo-performance/SKILL.md · 253 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 6d ago First seen · 253 lines · 69 tokens per session scan A 2d5f4f49677c

Subscribe to this mod's changes

pseo-performance is a skill published in the GitHub repository karrolcia/hippocampus (13 stars, last pushed 3d ago), licensed AGPL-3.0. It adds 69 tokens to every session and 2,455 once invoked, about $0.0003 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 2026-08-30.

Related

Other skills, from other repositories

release

Prepare, validate, and publish a Pake release. Not for version bumps without release intent.

tw93/Pake · 21 tokens

pake

Package any website or local web build into a lightweight desktop app using Pake (Tauri/Rust). Use when the user wants to: wrap a URL as a native app, build a desktop app from a website or a local dist/ folder, use Pake CLI to package a page, set up proxy for a packaged app, customize app icons or bundle IDs, or…

tw93/Pake · 119 tokens

deep-review

Multi-dimensional code review. Use when the user asks to review, evaluate, or audit a PR, diff, branch, or pasted change — including informal review asks like "look at this change for problems" — via light mode: one independent reviewer against the dimension quick checklists. Not for explain-only questions about what…

lobehub/lobehub · 92 tokens

acceptance

End-to-end verification and self-evidence for a delivery in any repository, with or without a preconfigured verify plan. Discover an existing plan when one was handed to this run; otherwise author checks and publish a standalone acceptance. Pick the proving surface (CLI / web / desktop / iOS Simulator), drive the real…

lobehub/lobehub · 163 tokens

ux-audit

Audit a page / surface against the Designing Interfaces pattern language + the ux skill checklists, then land findings. Three layers — static (code), visual (screenshots), dynamic (automated user journey + perf). Use to run a repeatable, standards-based UX review of one screen.

lobehub/lobehub · 62 tokens

ux

LobeHub product design values / principles / checklists. Use whenever the work touches user-interface features or implementation — designing or building any user-facing flow — to get better UX results.

lobehub/lobehub · 39 tokens