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frontmatter-guard SKILL.md skillA

frontmatter-guard from kanevry/session-orchestrator is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add kanevry/session-orchestrator/frontmatter-guard@git:20261003.c34ec50

Pins git:20261003.c34ec50 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: kanevry/session-orchestrator
Path: .codex-plugin/skills/frontmatter-guard/SKILL.md
Versions recorded: 2
Latest version: git:20261003.c34ec50, committed Oct 3, 2026
First version recorded: Sep 7, 2026
Size: 1,630 bytes
Repository stars: 53
License: MIT

Injects the canonical vault frontmatter schema snippet into agent prompts before any vault-write task, preventing malformed YAML frontmatter in Obsidian notes. <example>Context: wave-executor is about to dispatch a vault-mirror agent that writes learning notes under ~/Projects/vault/40-learnings/. user: "dispatch vault-write agent" assistant: "Injecting frontmatter-guard snippet into agent prompt (vault scope detected). Required fields: id, type, created, updated. Enum type…

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

<!-- Generated by scripts/generate-codex-skills.mjs; do not edit. -->

# frontmatter-guard

Read [`skills/frontmatter-guard/SKILL.md`](../../../skills/frontmatter-guard/SKILL.md) in full before taking any action, then follow its complete workflow.
The linked document is authoritative, including its prechecks, argument rules, and stop conditions.

Resolve this link relative to this SKILL.md, not the project working directory. The plugin root is three directories above this file. Resolve package paths such as `skills/` and `scripts/` from that root; resolve relative links inside the canonical document from its own directory. Keep the user’s project as the target of project operations.

Regenerate with `node scripts/generate-codex-skills.mjs`.

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add kanevry/session-orchestrator/frontmatter-guard@sha256:51977a9de4f6c92d

The line at the top of this page pins the label git:20261003.c34ec50, 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.

Badge

[![mdr](https://markdownregistry.com/badge/art_klngvmffw54ylkyn.svg)](https://markdownregistry.com/a/art_klngvmffw54ylkyn)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Sep 7, 2026 and Oct 3, 2026, about one every 26 days.

version	committed	commit	size	audit
git:20261003.c34ec50 latest	2026-10-03	c34ec50	1,630 B	A	view · diff
git:20260907.cf0876c	2026-09-07	cf0876c	1,604 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (1630 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

GitHub

kanevry/session-orchestrator · 53 stars · license MIT · pushed 2026-11-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_klngvmffw54ylkyn
GET https://markdownregistry.com/api/v1/resolve?ref=kanevry/session-orchestrator/frontmatter-guard
GET https://markdownregistry.com/api/v1/blob/51977a9de4f6c92dc9423867a5f69244f84342f7003ebe1829a7e050df6311c7

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.

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