snifftest SKILL.md skillA
snifftest from danrwilloughby/snifftest is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add danrwilloughby/snifftest/snifftest@git:20260917.2210385Pins git:20260917.2210385 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- danrwilloughby/snifftest
- Path
skills/snifftest/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260917.2210385, committed Sep 17, 2026
- Size
- 3,969 bytes
- Repository stars
- 36
- License
- MIT
Check a draft against the writer's house rules with the Sniff Test linter. Use when the user says /snifftest, hands you a Markdown or text file and asks whether it passes, asks which house rules a draft trips, or asks for a style or prose check on something they wrote. Reports the rule, the line and how sure the checker is, so the prose can be fixed rather than argued about.
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
# Sniff Test A prose linter. It reads Markdown and plain text files, checks them against a YAML ruleset, and prints one line per flag. There are two kinds of rule and they behave differently. **Countable rules** are regular expressions. Dash counts, banned words, sentence rhythm, anything a computer can decide exactly. They run on the machine, cost nothing, and send nothing anywhere. Run them whenever you like. **Judgment rules** need something read rather than counted: a line that undercuts its own claim, a cost stated without a price, a closing sentence that only restates. Deciding those means sending the text to a model, so they only run when the user has already agreed to it on this machine, or agrees now. ## Running it Both passes go through the script in this skill's folder. It pins the version of the tool it fetches and never answers the sending question on your behalf. The free pass, which is the default and the one to reach for first: ```sh sh "<skill-dir>/scripts/run.sh" path/to/draft.md ``` The judgment pass, only when the user has asked for it: ```sh sh "<skill-dir>/scripts/run.sh" --judge path/to/draft.md ``` …
Read the whole file at its exact version.
How to install
mdr add danrwilloughby/snifftest/snifftest@sha256:73e310681eb8b237The line at the top of this page pins the label git:20260917.2210385, 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_ynik44uxvjc2x7rd)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 17, 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 (3969 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
danrwilloughby/snifftest · 36 stars · license MIT · pushed 2026-10-26 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ynik44uxvjc2x7rd GET https://markdownregistry.com/api/v1/resolve?ref=danrwilloughby/snifftest/snifftest GET https://markdownregistry.com/api/v1/blob/73e310681eb8b23787f5c82c45f2db837fa358fe7d92d01025c0f9aba0a67058
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.