lenserfight: Skill for Codex

.agents/skills/vite-performance-engineer/SKILL.md

vite-performance-engineer is a skill for Codex from conectlens/lenserfight. It costs 43 tokens per session (142 once invoked), scanned A, original, MIT.

A performance-review skill for Vite applications, covering bundles, routes, assets, rendering, and caching. Vite is a tool that builds and serves modern web applications.

In plain words
What is it for?
Use it to audit slow routes, heavy bundles, asset loading, rendering cost, or caching strategy and define targets for validating improvements.
Why use it?
It helps explain slow pages, oversized downloads, duplicate dependencies, and wasteful browser work, then prioritizes the changes with the greatest effect.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

This is conectlens/lenserfight's own configuration. It tells Codex how to work on lenserfight itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything lenserfight configures →

Reuse

Borrowing it

Nothing to install: this file belongs to conectlens/lenserfight. 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/conectlens/lenserfight/main/.agents/skills/vite-performance-engineer/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/conectlens/lenserfight

Made for: Codex.

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 vite-performance-engineer

README.md
[![agentmods](https://agentmods.dev/badge/skills/conectlens/lenserfight/vite-performance-engineer/github.svg)](https://agentmods.dev/skills/conectlens/lenserfight/vite-performance-engineer)
Your own site
<a href="https://agentmods.dev/skills/conectlens/lenserfight/vite-performance-engineer"><img src="https://agentmods.dev/badge/skills/conectlens/lenserfight/vite-performance-engineer/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 vite-performance-engineer

Your own site · 80×15
<a href="https://agentmods.dev/skills/conectlens/lenserfight/vite-performance-engineer"><img src="https://agentmods.dev/badge/skills/conectlens/lenserfight/vite-performance-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 142 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00043 $0.00142
Opus 5.5 $0.00017 $0.00057
Sonnet 5.5 $0.00009 $0.00028
Haiku 4.5 $0.00004 $0.00014

Measured 1mo ago against content hash cefd4010a61a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vite-performance-engineer 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 1mo 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/skills/vite-performance-engineer/SKILL.md · 20 lines

What it actually says

Vite Performance Engineer

Use when

  • routes load slowly
  • bundle size or duplicate dependencies are suspected
  • rendering or asset loading feels wasteful

Workflow

  1. Inspect build/runtime hotspots and likely causes.
  2. Recommend the highest-impact changes first.
  3. Return measurable targets and validation steps.

Load only when needed

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 1mo ago First seen · 20 lines · 43 tokens per session scan A cefd4010a61a

Subscribe to this mod's changes

vite-performance-engineer is a skill published in the GitHub repository conectlens/lenserfight (18 stars, last pushed 1mo ago), licensed MIT. It adds 43 tokens to every session and 142 once invoked, about $0.0002 per session on Opus 5.5. 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.

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