optimize-images

optimize-images is a skill for Codex from vladolaru/claude-code-plugins. It costs 38 tokens per session (321 once invoked), scanned A, original, MIT.

A workflow for reducing image file sizes without changing their visual quality. It supports PNG, JPEG, GIF, and SVG files.

In plain words
What is it for?
It reviews image optimization candidates, asks for confirmation, and then applies lossless optimization to selected files.
Why use it?
Large image files can slow websites and use more storage, while manual optimization can accidentally reduce quality.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions subagents; mentions Claude Code; mentions Codex.

Good fit It reviews image optimization candidates, asks for confirmation, and then applies lossless optimization to selected files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vladolaru/claude-code-plugins/optimize-images
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.

Any agent
npx skills add vladolaru/claude-code-plugins --skill optimize-images
Clone the repo
git clone --depth 1 https://github.com/vladolaru/claude-code-plugins

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 optimize-images

README.md
[![agentmods](https://agentmods.dev/badge/skills/vladolaru/claude-code-plugins/optimize-images/github.svg)](https://agentmods.dev/skills/vladolaru/claude-code-plugins/optimize-images)
Your own site
<a href="https://agentmods.dev/skills/vladolaru/claude-code-plugins/optimize-images"><img src="https://agentmods.dev/badge/skills/vladolaru/claude-code-plugins/optimize-images/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 optimize-images

Your own site · 80×15
<a href="https://agentmods.dev/skills/vladolaru/claude-code-plugins/optimize-images"><img src="https://agentmods.dev/badge/skills/vladolaru/claude-code-plugins/optimize-images.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 321 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00038 $0.00321
Opus 5.5 $0.00015 $0.00128
Sonnet 5.5 $0.00008 $0.00064
Haiku 4.5 $0.00004 $0.00032

Measured 29d ago against content hash 44a2110b076f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

optimize-images 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 29d 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.

plugins/image-optimizer/codex-skills/optimize-images/SKILL.md · 29 lines

What it actually says

Codex Host Adapter

This skill is generated from the canonical Claude Code command named above. To execute it in Codex:

  1. Treat the text supplied after the skill mention as the invocation arguments. Substitute that exact text for ${CODEX_SKILL_ARGUMENTS} before executing shell commands.
  2. Resolve CODEX_PLUGIN_ROOT to the absolute plugin root. The loaded skill directory is <plugin-root>/codex-skills/<skill-name>, so the plugin root is two directories above the directory containing this SKILL.md.
  3. Assign both variables explicitly in any shell call that uses them. Codex does not export these instruction variables automatically.
  4. Use Codex's available user-input and subagent tools when the workflow requests them.
  5. Follow the canonical workflow below without skipping its gates or artifact checks.

Canonical Workflow

Optimize Images

Target: ${CODEX_SKILL_ARGUMENTS}

Load the image-optimization skill and follow its method for the target above. If the target names no files or folders, ask the human which images to work on and what they are for.

Use the lossless profile unless the human says the images may change visibly, and write no file before the skill's approval gates are met.

Files

What ships with it

1 file 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. 29d ago Changed · -76 lines · +16 tokens per session 44a2110b076f
  2. 2mo ago First seen · 105 lines · 22 tokens per session scan A bab512dbdc5e

Subscribe to this mod's changes

optimize-images is a skill published in the GitHub repository vladolaru/claude-code-plugins (8 stars, last pushed 5d ago), licensed MIT. It adds 38 tokens to every session and 321 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 2026-08-31.

Related

optimize-images compared with skills from other repositories

optimize-images next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
optimize-imagesvladolaru/claude-code-pluginsSkill85d agoMITA38Codex
imagegenopenai/codexSkill135ktodayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill100ktodayApache-2.0A19Claude Code
browser-automationopenclaw/openclawSkill394ktodayMITA36Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill316k7d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code