A set of instructions for improving how quickly an interface loads, renders, and responds. It covers areas such as images, animations, and the amount of code sent to the browser.

Use it when improving a website or app’s loading speed, rendering, animation smoothness, image handling, or bundle size.

It helps identify and address causes of slow loading or choppy interaction. This reduces the need to investigate performance problems without a focused checklist.

How zacharyfmarion/openscad-studio configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to zacharyfmarion/openscad-studio. 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/zacharyfmarion/openscad-studio/main/.agents/skills/optimize/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/zacharyfmarion/openscad-studio

Made for: Claude Code, 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/zacharyfmarion/openscad-studio/optimize/github.svg)](https://agentmods.dev/skills/zacharyfmarion/openscad-studio/optimize)

Your own site

<a href="https://agentmods.dev/skills/zacharyfmarion/openscad-studio/optimize"><img src="https://agentmods.dev/badge/skills/zacharyfmarion/openscad-studio/optimize/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/zacharyfmarion/openscad-studio/optimize"><img src="https://agentmods.dev/badge/skills/zacharyfmarion/openscad-studio/optimize.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,868 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.

Model	Per session	Once invoked
Fable 5.1	$0.00026	$0.01868
Opus 5.5	$0.00010	$0.00747
Sonnet 5.5	$0.00005	$0.00374
Haiku 4.5	$0.00003	$0.00187

Measured 2mo ago against content hash 0e7df93123d4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

optimize 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 2mo 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/optimize/SKILL.md · 268 lines

The source is not reproduced here

Licensed GPL-2.0

The repository is licensed GPL-2.0, 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.

2mo ago First seen · 268 lines · 26 tokens per session scan A 0e7df93123d4

Subscribe to this mod's changes

optimize is a skill published in the GitHub repository zacharyfmarion/openscad-studio (250 stars, last pushed 2mo ago), licensed GPL-2.0. It adds 26 tokens to every session and 1,868 once invoked, about $0.0001 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.

3d 3d-printing Frontend ai ide mac-app openscad

optimize next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
optimizezacharyfmarion/openscad-studio	Skill	250	2mo ago	GPL-2.0	A	26	Claude Code, Codex
openscadznlgis/opengis-skills	Skill	76	10d ago	MIT	B	122	Claude Code, Codex
3daistudiowhale-professor/3daistudio_skill	Skill	3	6mo ago	MIT	A	47	Claude Code, Codex
3d-ai-studio-apit4ai-workshops/3d-ai-studio-api-skill	Skill	14	3mo ago	none	A	93	Claude Code, Codex
3d-printEdwinjJ1/3d-print-skill	Skill	29	8mo ago	none	A	37	Claude Code, Codex
3daistudioLord1Egypt/awesome-skill-forge	Skill	3	5mo ago	MIT	A	47	Claude Code, Codex
mirrord-prev-envmetalbear-co/mirrord	Skill	5.4k	yesterday	MIT	A	122	Claude Code, Codex

openscad-studio: Skill for Claude Code