agentmods.dev

convert-to-avif

convert-to-avif is a skill for Claude Code from danielrosehill/Claude-Image-Production-Plugin. It costs 71 tokens per session (946 once invoked), scanned A, original, MIT.

A tool for converting JPEG, PNG, or TIFF images into AVIF, a modern web image format that can reduce file size while maintaining visual quality. It supports quality, speed, bit-depth, and lossless settings.

In plain words
What is it for?
Use it to convert individual images or folders to AVIF for modern websites, web pipelines, or high-bit-depth archives.
Why use it?
It helps prepare smaller web images and preserve higher-bit-depth or lossless source material when the target browsers support AVIF.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the image-production plugin — 29 skills, 19 commands shipped together

not rated 17repo +1 24d ago A scan SkillSpector: pass 71 tokens original MIT

Good fit Use it to convert individual images or folders to AVIF for modern websites, web pipelines, or high-bit-depth archives.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/danielrosehill/claude-image-production-plugin/convert-to-avif
View source ↗ danielrosehill/Claude-Image-Production-Plugin
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 danielrosehill/Claude-Image-Production-Plugin --skill convert-to-avif
Clone the repo
git clone --depth 1 https://github.com/danielrosehill/Claude-Image-Production-Plugin

Made for: Claude Code.

Or install image-production, the plugin that ships this one along with the rest of its 29 skills, 19 commands.

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 convert-to-avif

README.md
[![agentmods](https://agentmods.dev/badge/skills/danielrosehill/claude-image-production-plugin/convert-to-avif/github.svg)](https://agentmods.dev/skills/danielrosehill/claude-image-production-plugin/convert-to-avif)
Your own site
<a href="https://agentmods.dev/skills/danielrosehill/claude-image-production-plugin/convert-to-avif"><img src="https://agentmods.dev/badge/skills/danielrosehill/claude-image-production-plugin/convert-to-avif/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 convert-to-avif

Your own site · 80×15
<a href="https://agentmods.dev/skills/danielrosehill/claude-image-production-plugin/convert-to-avif"><img src="https://agentmods.dev/badge/skills/danielrosehill/claude-image-production-plugin/convert-to-avif.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 946 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 $0.00071 $0.00946
Opus 5 $0.00036 $0.00473
Sonnet 5 $0.00014 $0.00189
Haiku 4.5 $0.00007 $0.00095

Measured 11d ago against content hash bf5203855bb0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

convert-to-avif 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 11d 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.

skills/convert-to-avif/SKILL.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Convert to AVIF

Encode JPEG/PNG/TIFF to AVIF. AVIF beats WebP on compression ratio and supports 10/12-bit, HDR, and lossless modes. Browser support is universal as of 2024 (Chrome 85+, Firefox 113+, Safari 16.4+).

When to use

  • Web-prep where modern browser support is fine.
  • Archival of high-bit-depth photos (10/12-bit AVIF preserves more than JPEG).
  • Pre-step inside web-ready orchestrator.

Do not use this skill when:

  • Output must work in Safari <16.4 / IE / very old Android browsers — fall back to WebP or JPEG.
  • Source is already AVIF — no point re-encoding.
  • You need lossless re-encoding of a JPEG that should remain bit-exact-decodable — that's convert-to-jxl's unique trick, not AVIF's.

Inputs

  1. Input — file or directory. Required.
  2. Quality — avifenc -q N (0–100). Default 60 (visually equivalent to JPEG q82, much smaller). 80 for archival; 45 for aggressive.
  3. Speed/effort — avifenc -s <0..10>. Default 6 (balanced). 0 is best compression but very slow; 10 is fast but bigger files.
  4. Lossless — --lossless. Enables lossless mode (ignores quality). For exact archival of PNG.
  5. Bit depth — --depth 8|10|12. Default 8. Use 10 for HDR or 16-bit source.
  6. Output dir — default: <input-dir>/avif/. Skill never overwrites originals.
  7. Recursive — --recursive for directory descent.
  8. Preserve EXIF — default off (web-prep assumption). --keep-exif to copy EXIF over via exiftool.

Procedure

  1. Verify avifenc is on PATH. If missing, point at install-deps.

  2. Enumerate inputs (jpg, jpeg, png, tiff — skip others with note).

  3. For each file:

    avifenc -q <quality> -s <speed> [--lossless] [--depth <n>] "<input>" "<output>"

    Per-file. avifenc is single-threaded per encode but accepts --jobs N for tile-parallel — useful on large images. For batch parallelism, use xargs -P <ncpu>.

  4. If --keep-exif was set, post-process:

    exiftool -tagsfromfile "<input>" -all:all "<output>" -overwrite_original

Read the full file on GitHub · 69 lines

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. 11d ago First seen · 69 lines · 71 tokens per session scan A bf5203855bb0

Subscribe to this mod's changes

convert-to-avif is a skill published in the GitHub repository danielrosehill/Claude-Image-Production-Plugin (17 stars, last pushed 24d ago), licensed MIT. It adds 71 tokens to every session and 946 once invoked, about $0.0004 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.

Creative and media
Related

Other skills, from other repositories

webgl-holographic-foil

A self-contained WebGL2 hero: thin-film interference over a crushed-foil surface whose palette shifts with the viewing angle; move the cursor to tilt the film.

nexu-io/open-design · 41 tokens

general-video

Author or edit a custom HyperFrames composition when no specialized workflow fits, or when BRIEF.md sets flow: companion. Use for longer or multi-scene pieces, brand and sizzle reels, montages, static loops, static title cards, footage remixes, and freeform builds. Use motion-graphics instead for a short unnarrated…

heygen-com/hyperframes · 92 tokens

html-ppt-hermes-cyber-terminal

OpenDesign + BYOK: choosing and wiring your own model, hands-on — cost, quality, and the routing decision. Built as a decision-grade AI literacy deck for engineers, IT, applied-AI teams.

nexu-io/open-design · 53 tokens

html-ppt-taste-brutalist

16:9 HTML deck in tactical-telemetry / CRT-terminal taste. Deactivated-CRT charcoal slides, white-phosphor monospace, hazard-red accent, scanline overlay, ASCII syntax, density over decoration. Distilled from Leonxlnx/taste-skill brutalist-skill (Tactical Telemetry mode).

nexu-io/open-design · 78 tokens

chengfeng-check-updates

An environment manager for a video-editing system. It checks whether its skills and runtime—the software needed to run them—are installed and compatible.

Agentchengfeng/chengfeng-videocut-skills · 120 tokens

diagnostic-stem-delivery

Audio production with diagnostic analysis, timecode parsing from documents, and verified export workflow.

HKUDS/OpenSpace · 23 tokens