open SKILL.md skillA

open from snapsynapse/skill-provenance is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add snapsynapse/skill-provenance/open@git:20260924.5ab4070

Pins git:20260924.5ab4070 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
snapsynapse/skill-provenance
Path
skills/open/SKILL.md
Versions recorded
4
Latest version
git:20260924.5ab4070, committed Sep 24, 2026
First version recorded
Apr 12, 2026
Size
3,618 bytes
Repository stars
7
License
MIT

Verify a skill bundle's integrity when opening a project. Use when loading a skill project directory and you need to check file completeness, verify SHA-256 hashes against MANIFEST.yaml, detect stale files, review recent changes, or understand what state the bundle is in before starting work. Triggers on: "open this skill", "verify the bundle", "check what changed", "is everything up to date", "load this project".

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

# Skill Provenance: Open

Verify a skill bundle when opening a session. This ensures you start from
a known-good state before making any changes.

## When to use

Run `/skill-provenance:open` at the start of any session where you'll work
on a skill bundle — a directory containing `SKILL.md` and optionally
`MANIFEST.yaml`, `CHANGELOG.md`, evals, scripts, and other tracked files.

## Protocol

1. **Read MANIFEST.yaml first.** It is the single source of truth for what
   the bundle contains. If no manifest exists, tell the user and suggest
   running `/skill-provenance:bootstrap` instead.

2. **Verify the inventory is complete.** Report any files listed in the
   manifest but missing from disk, and any files on disk the manifest does
   not list. Unlisted files fail verification.

3. **Verify structure and hashes.** Prefer the bundle's `validate.sh` when
   available so constrained path grammar, duplicate inventory entries,
   symlink components, missing or malformed hashes, and explicit `hash: null`
   opt-outs are handled consistently. Otherwise compute SHA-256 manually for
   every manifest-listed pinned file and report reduced assurance.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add snapsynapse/skill-provenance/open@sha256:ccf6c73652fcee3e

The line at the top of this page pins the label git:20260924.5ab4070, 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 badge

[![mdr](https://markdownregistry.com/badge/art_3llzij4zbpjpg6cw.svg)](https://markdownregistry.com/a/art_3llzij4zbpjpg6cw)

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

Versions

The registry has recorded 4 versions of this file, between Apr 12, 2026 and Sep 24, 2026, about one every 55 days. Its first recorded version is graded B and its latest A.

versioncommittedcommitsizeaudit
git:20260924.5ab4070 latest2026-09-24 5ab4070 3,618 BA view · diff
git:20260820.3ed26392026-08-20 3ed2639 3,534 BA view · diff
git:20260721.8002a072026-07-21 8002a07 3,510 BB view · diff
git:20260412.2f1c9072026-04-12 2f1c907 3,303 BB 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 (3618 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

snapsynapse/skill-provenance · 7 stars · license MIT · pushed 2026-09-24 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_3llzij4zbpjpg6cw
GET https://markdownregistry.com/api/v1/resolve?ref=snapsynapse/skill-provenance/open
GET https://markdownregistry.com/api/v1/blob/ccf6c73652fcee3e59bdc0cec43f2e6bcfaf4f523f99683b72fef31fcb55c982

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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AGENTS.md AGENTS.md file
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git:20260924.5ab4070 · audit A · 7 stars
CLAUDE.md CLAUDE.md file
snapsynapse/skill-provenance · CLAUDE.md
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llms.txt llms.txt file
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v26 · audit A · 7 stars
bootstrap SKILL.md skill
snapsynapse/skill-provenance · skills/bootstrap/SKILL.md · Add version tracking to an existing unversioned skill bundle. Use when you have a skill project with SKILL.md but no…
git:20260820.3ed2639 · audit A · 7 stars
close SKILL.md skill
snapsynapse/skill-provenance · skills/close/SKILL.md · Update version tracking when finishing work on a skill bundle. Use when you're done editing a skill project and need to…
git:20260924.5ab4070 · audit A · 7 stars
handoff SKILL.md skill
snapsynapse/skill-provenance · skills/handoff/SKILL.md · Generate a handoff note summarizing skill project state for a future session or collaborator. Use when crossing a…
git:20260820.3ed2639 · audit A · 7 stars
validate SKILL.md skill
snapsynapse/skill-provenance · skills/validate/SKILL.md · Run a focused validation check for a skill bundle. Use when the user asks to validate, verify hashes, check…
git:20260924.5ab4070 · audit A · 7 stars

Every file in snapsynapse/skill-provenance

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wrg32786/aigent-os · skills/open/SKILL.md · Boot the session, load context from the vault, and surface what matters
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Browse by kind, by grade A, or by owner.