develop-gc-method SKILL.md skillA

develop-gc-method from pjt222/agent-almanac is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add pjt222/agent-almanac/develop-gc-method@v1.0

Pins 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/develop-gc-method/SKILL.md
Versions recorded
3
Latest version
v1.0, committed Aug 17, 2026
First version recorded
Apr 19, 2026
Size
11,991 bytes
Repository stars
43
License
MIT

Develop a gas chromatography method from scratch: define analytical objectives, select column chemistry, optimize temperature programming, choose carrier gas and detector, and validate initial system performance for target analytes in a given matrix.

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

# Develop a GC Method

Systematic development of a gas chromatography method covering column selection, temperature program optimization, carrier gas and detector choice, and initial performance verification for volatile and semi-volatile analytes.

## When to Use

- Starting a new GC analysis for volatile or semi-volatile compounds
- Adapting a published method to a different instrument or matrix
- Replacing an existing method that no longer meets performance requirements
- Developing a method for compounds with known boiling points and polarities
- Transitioning from a packed-column method to a capillary method

## Inputs

### Required

- **Target analytes**: List of compounds with CAS numbers, molecular weights, and boiling points
- **Sample matrix**: Description of the sample type (e.g., air, water extract, solvent solution, biological fluid)
- **Detection limits**: Required LOD/LOQ for each analyte

### Optional

- **Reference method**: Published method (EPA, ASTM, pharmacopeial) to use as a starting point
- **Available columns**: Inventory of columns already on hand
- **Instrument configuration**: GC model, available detectors, autosampler type
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add pjt222/agent-almanac/develop-gc-method@sha256:f906f366026ddc3b

The 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_23kd4u7scthszkg7.svg)](https://markdownregistry.com/a/art_23kd4u7scthszkg7)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Apr 19, 2026 and Aug 17, 2026, about one every 60 days.

versioncommittedcommitsizeaudit
v1.0 latest2026-08-17 a784899 11,991 BA view · diff
v1.02026-04-23 eb36d45 11,962 BA view · diff
v1.02026-04-19 e334ebd 12,022 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (11991 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

pjt222/agent-almanac · 43 stars · license MIT · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_23kd4u7scthszkg7
GET https://markdownregistry.com/api/v1/resolve?ref=pjt222/agent-almanac/develop-gc-method
GET https://markdownregistry.com/api/v1/blob/f906f366026ddc3bd97c5f86c527cc278e5ff657c7bc4f9820526259c0be469a

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.

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