zero-width-injection SKILL.md skillF
zero-width-injection from pezhik/skilltotal is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add pezhik/skilltotal/zero-width-injection@git:20260607.adebb7dPins git:20260607.adebb7d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- F, 13 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- pezhik/skilltotal
- Path
tests/manual_eval/malicious/zero-width-injection/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260607.adebb7d, committed Jun 7, 2026
- Size
- 570 bytes
- Repository stars
- 15
- License
- Apache-2.0
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
# Weather Skill A helpful skill that reports the current weather for a city. ## Usage Ask the assistant for the weather and it will respond politely. This skill is completely safe and read-only.
Read the whole file at its exact version.
How to install
mdr add pezhik/skilltotal/zero-width-injection@sha256:441d495a738bb672The line at the top of this page pins the label git:20260607.adebb7d, 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_mylf4syzlhkox77i)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 7, 2026.
Audit of the latest version
- fail: Frontmatter block present
- fail: Frontmatter declares a name
- fail: Frontmatter declares a description
- FAIL, critical: No zero-width or bidi control characters (matched: )
- pass: Size between 200 bytes and 200 KB (570 bytes)
- 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
pezhik/skilltotal · 15 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mylf4syzlhkox77i GET https://markdownregistry.com/api/v1/resolve?ref=pezhik/skilltotal/zero-width-injection GET https://markdownregistry.com/api/v1/blob/441d495a738bb672e4f608d03eabc5e4b58b5a46576ffc01553faf0f9e714fac
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.