prep-images-for-embed SKILL.md skillA
prep-images-for-embed from lossless-group/lossless-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lossless-group/lossless-agent-skills/prep-images-for-embed@git:20260815.bdb6e4dPins git:20260815.bdb6e4d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lossless-group/lossless-agent-skills
- Path
prep-images-for-embed/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260815.bdb6e4d, committed Aug 15, 2026
- Size
- 14,857 bytes
- Repository stars
- 4
- License
- MIT
Turn raw screenshots into embeddable, CDN-hosted images with real alt text — rename, resize, strip metadata, stage in a gitignored folder, upload to ImageKit, and emit SEO-correct markdown or HTML. Use whenever the user drops screenshots and wants them in a changelog entry, splash page, spec, or any markdown surface; whenever they say "add these screenshots", "put these images in the changelog", "upload these to the CDN", "make this post image-heavy"; whenever local image references need…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Prep Images for Embed > **The one thing to remember: upload JPEG, not WebP.** ImageKit converts to WebP > for browsers that accept it *and* falls back to JPEG for those that don't. > Upload WebP and the fallback becomes a **PNG up to 3× larger**. Measured, not > assumed — see [Format](#format-upload-jpeg-always). ## When to use this skill - The user drops screenshots and wants them in a changelog entry, splash page, spec, or any markdown surface - "Add these screenshots", "put these in the changelog", "upload these" - Local image references need converting to CDN URLs - An image is destined to become an `og:image` - Any markdown surface should become image-heavy without the user manually uploading and pasting links ## Why this exists Screenshots arrive as `Screenshot 2026-08-14 at 9.11.31 PM.png` — 400KB of PNG with a filename that is useless to a search engine and a reader. Getting one into a changelog *properly* means renaming it, resizing it, stripping metadata, hosting it somewhere with correct headers, and writing alt text. That's six steps of tedium per image, which is why posts end up with no images at all. This skill makes it one call. …
Read the whole file at its exact version.
How to install
mdr add lossless-group/lossless-agent-skills/prep-images-for-embed@sha256:7a02237d0c40b3b1The line at the top of this page pins the label git:20260815.bdb6e4d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_quz5ymxu3csicgh6)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 15, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (14857 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
lossless-group/lossless-agent-skills · 4 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_quz5ymxu3csicgh6 GET https://markdownregistry.com/api/v1/resolve?ref=lossless-group/lossless-agent-skills/prep-images-for-embed GET https://markdownregistry.com/api/v1/blob/7a02237d0c40b3b1b0428442362ce070a432f19493068629ca87237fe4f37421
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.