avionics-signpost SKILL.md skillA
avionics-signpost from jgsystemsconsulting/jgs-se-knowledge-packs is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jgsystemsconsulting/jgs-se-knowledge-packs/avionics-signpost@git:20261013.32da440Pins git:20261013.32da440 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jgsystemsconsulting/jgs-se-knowledge-packs
- Path
packs/avionics-signpost/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261013.32da440, committed Oct 13, 2026
- First version recorded
- Oct 12, 2026
- Size
- 7,293 bytes
- Repository stars
- 60
- License
- a license file GitHub does not identify
Signpost (not a knowledge pack) for the avionics development assurance standards landscape: RTCA DO-178C / EUROCAE ED-12C and its supplements (DO-330/ED-215, DO-331/ED-218, DO-332/ED-217, DO-333/ED-216); RTCA DO-254 / EUROCAE ED-80; SAE ARP4754B and ARP4761A; and the free regulator documents that recognise them (FAA AC 20-115D, AC 20-152A, Order 8110.49A; EASA AMC 20-115D and AMC 20-152A). Contains no source content: each row carries only the designation, title, edition, owner…
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
<!-- argument-hint: [standard designation or topic, e.g. DO-178C / DO-254 / ARP4754B / ARP4761A / AC 20-115D / AC 20-152A / Order 8110.49A] --> # Avionics Development Assurance Standards: Signpost (pointers only) **This is a signpost, not a knowledge pack.** It carries **no standards-body content**: no reproduced clauses, no normative text, no synthesised summaries of the standards. DO-178C, DO-254, and the SAE ARPs are paywalled with no redistribution grant (Excluded under this repo's `docs/SOURCE-VETTING.md`), so they cannot be reconstituted into a redistributable pack. What this skill does: tell you which document you want, what it is for, who owns it, whether a free copy exists, and where to get the authentic one. ## When to use You are developing or reviewing avionics software or airborne electronic hardware and need to identify or cite the governing document: which standard covers tool qualification, which AC recognises DO-254, which EASA text accepts DO-178C. Paywalled rows route you to the owner; free regulator rows route you to the authentic text or, where this repo ships one, to the installable pack. **Prerequisites:** none, plain Markdown. ## How to use …
Read the whole file at its exact version.
How to install
mdr add jgsystemsconsulting/jgs-se-knowledge-packs/avionics-signpost@sha256:87e33293c0821a7dThe line at the top of this page pins the label git:20261013.32da440, 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_ws65a7rrr4nvgx6x)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 12, 2026 and Oct 13, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261013.32da440 latest | 2026-10-13 | 32da440 | 7,293 B | A | view · diff |
| git:20261013.9c333f0 | 2026-10-13 | 9c333f0 | 7,311 B | A | view · diff |
| git:20261012.1040a2b | 2026-10-12 | 1040a2b | 6,824 B | A | view |
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 (7293 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
jgsystemsconsulting/jgs-se-knowledge-packs · 60 stars · license a license file GitHub does not identify · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ws65a7rrr4nvgx6x GET https://markdownregistry.com/api/v1/resolve?ref=jgsystemsconsulting/jgs-se-knowledge-packs/avionics-signpost GET https://markdownregistry.com/api/v1/blob/87e33293c0821a7de8bd9f7a1f79bc589b7c8cdc5622e12823bea53aac1377eb
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.