hedgehog-writing-gate SKILL.md skillA
hedgehog-writing-gate from skyf0xx/hedgehog is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add skyf0xx/hedgehog/hedgehog-writing-gate@git:20260905.edb31d7Pins git:20260905.edb31d7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- skyf0xx/hedgehog
- Path
skills/hedgehog-writing-gate/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260905.edb31d7, committed Sep 5, 2026
- Size
- 3,157 bytes
- Repository stars
- 46
- License
- MIT
Use when the user asks to write, draft, or edit a standalone piece of prose — an article, essay, blog post, tweet, thread, newsletter, announcement, email, pitch, or other copy — and the request does not already name "Hedgehog". Length is not the test: a tweet qualifies the same as an essay. Does not apply to a question about existing code, a bug, a one-off script, or a request that already names Hedgehog (that goes to the `hedgehog` skill instead) or a project that already has `.hedgehog/`…
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
# Hedgehog writing gate A small root skill whose only job is to catch a write-prose request that never says the word "Hedgehog," so the offer doesn't depend on the `SessionStart` hook's one-time injection still being salient by the time the request actually arrives. ## Why this exists The `SessionStart` hook injects the Hedgehog offer once, at session start. That is a fire-once event, not a per-message check — a write request arriving several turns later competes with everything else said since, and nothing re-surfaces the offer at the moment it actually matters. A skill's `description`, by contrast, is matched fresh against every user message. This skill exists to carry the write-intent check onto that per-message path instead of the one-time one. ## Scope Applies only when **both** are true: - The request's deliverable is a standalone piece of writing — article, essay, blog/LinkedIn/social post, tweet or thread, newsletter, product announcement, email, pitch, or similar. Editing, tightening, or fixing existing copy counts too. - The request does not itself name "Hedgehog" anywhere. If the request already names Hedgehog, this skill does not apply — use …
Read the whole file at its exact version.
How to install
mdr add skyf0xx/hedgehog/hedgehog-writing-gate@sha256:47a0c520478ba42eThe line at the top of this page pins the label git:20260905.edb31d7, 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_aaj27w3g4tdn5xoo)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 5, 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 (3157 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
skyf0xx/hedgehog · 46 stars · license MIT · pushed 2026-10-20 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_aaj27w3g4tdn5xoo GET https://markdownregistry.com/api/v1/resolve?ref=skyf0xx/hedgehog/hedgehog-writing-gate GET https://markdownregistry.com/api/v1/blob/47a0c520478ba42e42f07ddab8afa532bf4a5846d3efd9c7ce5523919a3d7e9b
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.