jgsystemsconsulting/jgs-se-knowledge-packs · packs/is-gps-200n/SKILL.md

is-gps-200n skillA

is-gps-200n is agent-read markdown (skill) from jgsystemsconsulting/jgs-se-knowledge-packs: Knowledge base from IS-GPS-200 Rev N (NAVSTAR GPS Space Segment / Navigation User Segment Interfaces). Use as a worked ICD/IS exemplar: what an interface specification is, DIST-A and IRN/CCB change control, interface definition vs identification, composite-signal criteria patterns, NAV data as payload families, and time/definition hygiene. Covers Rev N synthesized notes only; does not transcribe Apps II–IV bit fields or PRN/Gold-code tables, and does not replace faa-std-025 preparation rules..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add jgsystemsconsulting/jgs-se-knowledge-packs/is-gps-200n@git:20260817.ee762d0
Exact content
mdr add jgsystemsconsulting/jgs-se-knowledge-packs/is-gps-200n@sha256:4e76b1b6af361fb9

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

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Versions

versioncommittedcommitsizeaudit
git:20260817.ee762d0 latest2026-08-17 ee762d0 5,186 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (5186 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

jgsystemsconsulting/jgs-se-knowledge-packs · 5 stars · license NOASSERTION · pushed 2026-09-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jwhx44ijdarh2sd2
GET https://markdownregistry.com/api/v1/resolve?ref=jgsystemsconsulting/jgs-se-knowledge-packs/is-gps-200n
GET https://markdownregistry.com/api/v1/blob/4e76b1b6af361fb998141bcadaab600f1e16821d5f5ca689b9dfd4db4bf99b65

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.