appraise-gemstone SKILL.md skillA
appraise-gemstone from pjt222/agent-almanac is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add pjt222/agent-almanac/appraise-gemstone@v1.0Pins v1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- pjt222/agent-almanac
- Path
i18n/caveman-lite/skills/appraise-gemstone/SKILL.md- Versions recorded
- 4
- Latest version
- v1.0, committed Aug 17, 2026
- First version recorded
- Apr 19, 2026
- Size
- 20,685 bytes
- Repository stars
- 43
- License
- MIT
Appraise gemstone value using the four Cs (color, clarity, cut, carat), origin assessment, treatment detection, and market factor analysis. Advisory educational guidance only — not a certified appraisal. Use when understanding factors that determine a gemstone's value, pre-screening stones before a professional appraisal, evaluating whether a seller's asking price is reasonable, learning gemstone grading methodology, or understanding how treatment status affects value.
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
# Appraise Gemstone Appraise gemstone value using the four Cs (colour, clarity, cut, carat weight), treatment detection, origin assessment, and market factor analysis. This is educational advisory guidance only and does not constitute a certified gemological appraisal. > **DISCLAIMER**: This procedure provides educational guidance on gemstone valuation methodology. It is NOT a certified appraisal. For insurance, estate, sale, or legal purposes, always obtain a formal appraisal from a certified gemologist (GIA Graduate Gemologist, FGA, or equivalent). Gemstone values can vary enormously based on factors that require hands-on professional assessment. ## When to Use - You want to understand the factors that determine a gemstone's value - You are pre-screening stones before paying for a professional appraisal - You need to evaluate whether a seller's asking price is within a reasonable range - You are learning gemstone grading methodology for educational purposes - You want to understand how treatment status affects value ## Inputs - **Required**: Identified gemstone (species confirmed — see `identify-gemstone`) …
Read the whole file at its exact version.
How to install
mdr add pjt222/agent-almanac/appraise-gemstone@sha256:478071310d9aa0e8The line at the top of this page pins the label v1.0, 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_l5pghp6lid6yfaod)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Apr 19, 2026 and Aug 17, 2026, about one every 40 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0 latest | 2026-08-17 | a784899 | 20,685 B | A | view · diff |
| v1.0 | 2026-06-05 | 33b561c | 20,656 B | A | view · diff |
| v1.0 | 2026-04-19 | a31852a | 20,636 B | A | view · diff |
| v1.0 | 2026-04-19 | e334ebd | 20,701 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 (20685 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
pjt222/agent-almanac · 43 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_l5pghp6lid6yfaod GET https://markdownregistry.com/api/v1/resolve?ref=pjt222/agent-almanac/appraise-gemstone GET https://markdownregistry.com/api/v1/blob/478071310d9aa0e8dd3086cccd511d4a31279ec8c0ab6823986e10d40bc17bf4
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.