image-compare SKILL.md skillA
image-compare from teimurjan/blazediff is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add teimurjan/blazediff/image-compare@git:20260819.0fc2662Pins git:20260819.0fc2662 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- teimurjan/blazediff
- Path
skill/image-compare/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260819.0fc2662, committed Aug 19, 2026
- Size
- 8,758 bytes
- Repository stars
- 354
- License
- MIT
Compare two image files on disk and report what changed, region by region. Trigger on "what changed between these two images", "diff these PNGs", "did this render drift", "compare screenshots/exports/renders".
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
# image-compare Two image files in, a verdict out. No baselines, no manifest, no browser. CLI binary is `blazediff-cli` (`npm i -g @blazediff/cli`). **Not this skill:** capturing a running app, managing baselines, or re-running a visual regression suite → use the `blazediff` skill instead (it owns `.blazediff/`, `blazediff-agent`, and the check/rewrite loop). If the working directory has a `.blazediff/manifest.json` and the user is asking about *routes* rather than *files*, you are in the wrong skill. ## Be terse - Pass `--json` on every call; parse fields. Do not echo CLI output. - Never send whole images to a model when `interpret` has located the regions — see **Send crops, not pages** below. This is the point of the skill. - One final summary line: `N regions | <severity> | <one-clause verdict>`. ## Pick the command by the question | The user is asking | Command | Read from it | |---|---|---| | "what changed?" / "describe the differences" | `interpret` | `regions[]` — bbox, changeType, position | | "are these identical?" | `core-native` | `different pixels` (0 = byte-identical after decode) | | "how different, perceptually?" | `ssim` | SSIM score, 1.0 = identical | …
Read the whole file at its exact version.
How to install
mdr add teimurjan/blazediff/image-compare@sha256:63a60464450801ccThe line at the top of this page pins the label git:20260819.0fc2662, 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_munpsu6xqyrktkjz)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 19, 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 (8758 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
teimurjan/blazediff · 354 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_munpsu6xqyrktkjz GET https://markdownregistry.com/api/v1/resolve?ref=teimurjan/blazediff/image-compare GET https://markdownregistry.com/api/v1/blob/63a60464450801cc6a7d288ad6d8d3b0d3c19377cb73efbb96285253343c7a2c
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.