validate SKILL.md skillA

validate from jovesun-lab/arcgram is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add jovesun-lab/arcgram/validate@git:20260723.78f5e7a

Pins git:20260723.78f5e7a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
jovesun-lab/arcgram
Path
skills/validate/SKILL.md
Versions recorded
2
Latest version
git:20260723.78f5e7a, committed Jul 23, 2026
First version recorded
Jul 20, 2026
Size
4,211 bytes
Repository stars
13
License
Apache-2.0

Run both Arcgram self-checks in one call. A thin wrapper over Checkpoint (structure) and Reconcile (values): validate(diagram,{code}) runs Checkpoint always and Reconcile when code is supplied, then merges into one source-tagged result in the same {findings,summary,attestation,clean} contract. clean = checkpoint.clean && reconcile.clean. Adds no new check; marks, never blocks. Run after authoring or editing a diagram and its code. Agent-neutral. The single door over its two siblings.

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

# Validate - the combined Arcgram self-check entry

One call. Two questions answered between the siblings:
**is the flow well-formed and coherent, AND do its `@spec` values still match the code?**

Validate is a **thin wrapper**, not a new check. It imports
[Checkpoint](../checkpoint/SKILL.md) and [Reconcile](../reconcile/SKILL.md) **untouched** and
composes their pure functions:

- **Checkpoint** (one input: the diagram) checks **structure** - well-formed, coherent.
- **Reconcile** (two inputs: diagram + code) checks **values** - `@spec` literals == code constants.

Run both -> the diagram is a faithful, current spec. Every finding still comes from one sibling;
Validate only **merges, source-tags, and unions the attestation**.

## Code is optional

| input | what runs | clean possible? |
|---|---|---|
| `validate(diagram, { code })` | Checkpoint **and** Reconcile | yes |
| `validate(diagram)` (no code) | Checkpoint only | no - values unchecked |

Without code there is nothing to reconcile, so Reconcile is **not run** (running it would just flag
every `@spec` pin as missing). Instead the value half is reported as one `uncovered`
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add jovesun-lab/arcgram/validate@sha256:134f64c2986f630b

The line at the top of this page pins the label git:20260723.78f5e7a, 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_25xdiu57kuhvmpbl.svg)](https://markdownregistry.com/a/art_25xdiu57kuhvmpbl)

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

Versions

The registry has recorded 2 versions of this file, between Jul 20, 2026 and Jul 23, 2026, about one every 3 days.

versioncommittedcommitsizeaudit
git:20260723.78f5e7a latest2026-07-23 78f5e7a 4,211 BA view · diff
git:20260720.f85faff2026-07-20 f85faff 4,229 BA 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 (4211 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

jovesun-lab/arcgram · 13 stars · license Apache-2.0 · pushed 2026-10-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_25xdiu57kuhvmpbl
GET https://markdownregistry.com/api/v1/resolve?ref=jovesun-lab/arcgram/validate
GET https://markdownregistry.com/api/v1/blob/134f64c2986f630b2c22eb7875a371e95a8f6cfe85118efab2724624fd720ed2

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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Every file in jovesun-lab/arcgram

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