interpret-mass-spectrum SKILL.md skillA

interpret-mass-spectrum 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/interpret-mass-spectrum@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/interpret-mass-spectrum/SKILL.md
Versions recorded
4
Latest version
v1.0, committed Aug 17, 2026
First version recorded
Apr 19, 2026
Size
12,265 bytes
Repository stars
43
License
MIT

Systematically interpret mass spectra to determine molecular formula, identify fragmentation pathways, and propose molecular structures. Covers ionization method assessment, molecular ion identification, isotope pattern analysis, common fragmentation losses, and purity evaluation.

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

# Interpret Mass Spectrum

Analyze mass spectra from any common ionization method to determine the molecular ion, molecular formula, fragmentation pathways, and structural features of the analyte.

## When to Use

- Determining the molecular weight and formula of an unknown compound
- Confirming the identity of a synthetic product by molecular ion and fragmentation
- Identifying impurities or degradation products in a sample
- Proposing structural features from characteristic fragmentation losses
- Analyzing isotope patterns to detect halogens, sulfur, or metals

## Inputs

- **Required**: Mass spectrum data (m/z values with relative intensities, at minimum the full scan spectrum)
- **Required**: Ionization method used (EI, ESI, MALDI, CI, APCI, APPI)
- **Optional**: High-resolution mass data (exact mass, measured vs. calculated)
- **Optional**: Molecular formula from other sources (elemental analysis, NMR)
- **Optional**: Tandem MS/MS data (fragmentation of selected precursor ions)
- **Optional**: Chromatographic context (LC-MS or GC-MS retention time, purity)

## Procedure

### Step 1: Identify Ionization Method and Expected Ion Types
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add pjt222/agent-almanac/interpret-mass-spectrum@sha256:9126f1fa8075ec6d

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_nnr37ouvkfg5grwp.svg)](https://markdownregistry.com/a/art_nnr37ouvkfg5grwp)

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.

versioncommittedcommitsizeaudit
v1.0 latest2026-08-17 a784899 12,265 BA view · diff
v1.02026-06-05 75ded7a 12,236 BA view · diff
v1.02026-04-26 f5b501b 12,363 BA view · diff
v1.02026-04-19 e334ebd 12,420 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 (12265 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_nnr37ouvkfg5grwp
GET https://markdownregistry.com/api/v1/resolve?ref=pjt222/agent-almanac/interpret-mass-spectrum
GET https://markdownregistry.com/api/v1/blob/9126f1fa8075ec6d44a14573fe765444152b9f07bec8eda163c81b18abd81a57

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.

More from pjt222/agent-almanac

CLAUDE.md CLAUDE.md file
pjt222/agent-almanac · CLAUDE.md
git:20261105.d2f5ad6 · audit A · 43 stars
adapt-architecture SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/adapt-architecture/SKILL.md · Execute structural metamorphosis using strangler fig migration, chrysalis phases, and interface preservation. Covers…
v1.0 · audit A · 43 stars
adaptic SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/adaptic/SKILL.md · Master skill composing the 5-step synoptic cycle for panoramic synthesis across multiple domains. Orchestrates…
v1.0 · audit A · 43 stars
add-puzzle-type SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/add-puzzle-type/SKILL.md · Scaffold a new puzzle type across all 10+ pipeline integration points in jigsawR. Creates the core puzzle module, wires…
v1.0 · audit A · 43 stars
add-rcpp-integration SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/add-rcpp-integration/SKILL.md · Add Rcpp or RcppArmadillo integration to an R package for high-performance C++ code. Covers setup, writing C++…
v1.0 · audit A · 43 stars
aikido SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/aikido/SKILL.md · Practice aikido as a defensive martial art emphasizing harmony, redirection, and controlled resolution. Covers…
v1.0 · audit A · 43 stars
analyze-codebase-for-mcp SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/analyze-codebase-for-mcp/SKILL.md · Analyze an arbitrary codebase to identify functions, APIs, and data sources suitable for exposure as MCP tools…
v1.0 · audit A · 43 stars
analyze-codebase-workflow SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/analyze-codebase-workflow/SKILL.md · Analyze an arbitrary codebase to auto-detect workflows, data pipelines, and file dependencies using putior's put_auto()…
v1.0 · audit A · 43 stars
analyze-diffusion-dynamics SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/analyze-diffusion-dynamics/SKILL.md · Analyze the dynamics of diffusion processes using stochastic differential equations, Fokker-Planck equations…
v1.0 · audit A · 43 stars
analyze-generative-diffusion-model SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/analyze-generative-diffusion-model/SKILL.md · Analyze pre-trained generative diffusion models (Stable Diffusion, DALL-E, Flux) by computing quality metrics (FID, IS…
v1.0 · audit A · 43 stars
analyze-kernel-bottleneck SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/analyze-kernel-bottleneck/SKILL.md · Systematically identify whether a GPU kernel is compute-bound, memory-bound, or latency-bound using roofline analysis…
v1.0 · audit A · 43 stars
analyze-magnetic-field SKILL.md skill
pjt222/agent-almanac · i18n/caveman-lite/skills/analyze-magnetic-field/SKILL.md · Calculate and visualize magnetic fields produced by current distributions using the Biot-Savart law, Ampere's law, and…
v1.0 · audit A · 43 stars

Every file in pjt222/agent-almanac

Browse by kind, by grade A, or by owner.