nasa-ceh SKILL.md skillA
nasa-ceh 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/nasa-ceh@git:20260624.177d6b6Pins git:20260624.177d6b6 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/nasa-ceh/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260624.177d6b6, committed Jun 24, 2026
- Size
- 15,469 bytes
- Repository stars
- 60
- License
- a license file GitHub does not identify
Knowledge base from the NASA Cost Estimating Handbook (CEH) v4.0. Use for NASA's 12-step, three-part cost estimating process (Project Definition, Cost Methodology, Cost Estimate); the WBS, CADRe, and ONCE data backbone; estimating methodologies (analogy, parametric/CER, engineering build-up, EVM, Delphi); ground rules and assumptions, data normalization and inflation (BY/CY/RY); the point-estimate-to-S-curve cost-risk chain and Unallocated Future Expense (UFE) reserves; Joint Cost and Schedule…
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: [process task/step, WBS, CADRe, methodology (analogy/parametric/CER/build-up), GR&A, normalization, cost-risk/S-curve/UFE, JCL, sensitivity/trade/CAIV/affordability, economic analysis/NPV, chapter number] --> # NASA Cost Estimating Handbook (CEH) v4.0 **Source**: NASA (US Government work, public domain) | **Chapters**: 7 ## When to use Use this skill to produce or review a NASA cost estimate end to end: scoping and defining what is being estimated, choosing an estimating methodology and tool, normalizing data, turning a deterministic point estimate into a confidence curve with a sized reserve, running a Joint Cost and Schedule Confidence Level analysis, supporting decisions with sensitivity/trade/affordability/CAIV analyses, and comparing alternatives with a discounted economic analysis. This is the cost-and-cost-risk complement to NASA's systems-engineering and risk material (`nasa-risk`, `nasa-se-handbook`, `nasa-npr-7123`) and to the broader government cost canon (`gao-cost`, `gao-schedule`). **Prerequisites:** none — plain Markdown; no MCP server, API key, or licence tier needed at runtime. ## How to Use This Skill …
Read the whole file at its exact version.
How to install
mdr add jgsystemsconsulting/jgs-se-knowledge-packs/nasa-ceh@sha256:a632c93bd14ee770The line at the top of this page pins the label git:20260624.177d6b6, 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_i2hty2zpkwrbng6w)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 24, 2026.
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 (15469 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_i2hty2zpkwrbng6w GET https://markdownregistry.com/api/v1/resolve?ref=jgsystemsconsulting/jgs-se-knowledge-packs/nasa-ceh GET https://markdownregistry.com/api/v1/blob/a632c93bd14ee770ab32d5d04d5d298208e682a353d0fabdf1008b3f89b60d6d
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.