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nasa-se-expanded

nasa-se-expanded is a skill for Claude Code from jgsystemsconsulting/jgs-se-knowledge-packs. It costs 278 tokens per session (4,707 once invoked), scanned A, original, no licence file.

A reference knowledge base based on NASA's detailed guidance for systems engineering, published in 2016. It explains the practical mechanics of the Systems Engineering Engine, including work by phase and the difference between iterative and recursive work.

In plain words
What is it for?
Use it to understand or apply NASA systems-engineering practices, phase-by-phase work, and iterative or recursive planning.
Why use it?
It gives agents deeper implementation guidance when the shorter NASA handbook does not cover the engineering process in enough detail.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the jgs-se-knowledge-packs plugin — 83 skills shipped together

not rated 54repo +62 3d ago A scan 278 tokens custom licence

Good fit Use it to understand or apply NASA systems-engineering practices, phase-by-phase work, and iterative or recursive planning.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jgsystemsconsulting/jgs-se-knowledge-packs/nasa-se-expanded
View source ↗ jgsystemsconsulting/jgs-se-knowledge-packs jgsystemsconsulting.github.io
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add jgsystemsconsulting/jgs-se-knowledge-packs --skill nasa-se-expanded
Clone the repo
git clone --depth 1 https://github.com/jgsystemsconsulting/jgs-se-knowledge-packs

Made for: Claude Code.

Or install jgs-se-knowledge-packs, the plugin that ships this one along with the rest of its 83 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for nasa-se-expanded

README.md
[![agentmods](https://agentmods.dev/badge/skills/jgsystemsconsulting/jgs-se-knowledge-packs/nasa-se-expanded/github.svg)](https://agentmods.dev/skills/jgsystemsconsulting/jgs-se-knowledge-packs/nasa-se-expanded)
Your own site
<a href="https://agentmods.dev/skills/jgsystemsconsulting/jgs-se-knowledge-packs/nasa-se-expanded"><img src="https://agentmods.dev/badge/skills/jgsystemsconsulting/jgs-se-knowledge-packs/nasa-se-expanded/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for nasa-se-expanded

Your own site · 80×15
<a href="https://agentmods.dev/skills/jgsystemsconsulting/jgs-se-knowledge-packs/nasa-se-expanded"><img src="https://agentmods.dev/badge/skills/jgsystemsconsulting/jgs-se-knowledge-packs/nasa-se-expanded.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 278 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,707 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00278 $0.04707
Opus 5.5 $0.00111 $0.01883
Sonnet 5.5 $0.00056 $0.00941
Haiku 4.5 $0.00028 $0.00471

Measured 2mo ago against content hash 013cb6d80000, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nasa-se-expanded scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

packs/nasa-se-expanded/SKILL.md · 130 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 130 lines · 278 tokens per session scan A 013cb6d80000

Subscribe to this mod's changes

nasa-se-expanded is a skill published in the GitHub repository jgsystemsconsulting/jgs-se-knowledge-packs (54 stars, last pushed 3d ago), with no licence file. It adds 278 tokens to every session and 4,707 once invoked, about $0.0011 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Claude CodePlanningScientificagent-skillsdodfaagaoknowledge-packs
Related

nasa-se-expanded compared with skills from other repositories

nasa-se-expanded next to 6 skills from other repositories
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nasa-se-expandedjgsystemsconsulting/jgs-se-knowledge-packsSkill543d agononeA278Claude Code
instrument-data-to-allotropeanthropics/knowledge-work-pluginsSkill35ktodayApache-2.0A123Claude Code
exploratory-data-analysisK-Dense-AI/scientific-agent-skillsSkill56k5d agoMITA83Claude Code
mapping-to-snomedmaziyarpanahi/openmedSkill5.8ktodayApache-2.0A205Claude Code
auditing-subgroup-fairnessmaziyarpanahi/openmedSkill5.8ktodayApache-2.0A148Claude Code
tooluniverse-drug-researchmims-harvard/ToolUniverseSkill1.8ktodayApache-2.0A71Claude Code
evo2-nimNVIDIA/skillsSkill3.9ktodayApache-2.0B68Claude Code