r-ops SKILL.md skillA
r-ops from 0xdarkmatter/claude-mods is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add 0xdarkmatter/claude-mods/r-ops@git:20260708.17c8a3aPins git:20260708.17c8a3a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- 0xdarkmatter/claude-mods
- Path
skills/r-ops/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260708.17c8a3a, committed Jul 8, 2026
- First version recorded
- Jun 22, 2026
- Size
- 7,935 bytes
- Repository stars
- 68
- License
- MIT
Modern R for data analysis and statistics — tidyverse-first (dplyr, tidyr, ggplot2, native |> pipe), with base R and data.table as alternatives. Triggers on: R, Rstats, tidyverse, dplyr, tidyr, ggplot2, pivot/join/group, data.table, purrr map, broom, renv, Quarto.
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
# Modern R Operations A tidyverse-first, current-best-practice reference for working in R (2024+): data analysis, statistics, visualization, and reproducible workflow. Opinionated where the community has converged, with base R and `data.table` flagged as the right tool when they are. ## The modern R stack at a glance | Job | Reach for | Not (anymore) | |-----|-----------|---------------| | Pipe | native `\|>` (R 4.1+) | `%>%` only when you need its placeholder/`.` features | | Data frame | `tibble` | `data.frame` defaults (but it's fine) | | Wrangle | `dplyr` + `tidyr` | hand-rolled `[`, `subset`, `aggregate` | | Read CSV | `readr::read_csv` (prod), `data.table::fread` (speed) | `read.csv` | | Excel / Parquet / DB | `readxl` / `arrow` / `DBI`+`dbplyr` | — | | Strings / dates / factors | `stringr` / `lubridate` / `forcats` | base `grepl`/`POSIXlt`/`factor` juggling | | Plot | `ggplot2` | base graphics (fine for throwaway plots) | | Iterate | `purrr::map_*` + `across()` | `sapply` (type-unstable); `lapply` ok in package code | | Big / fast | `data.table` (or `dtplyr`, `arrow`+`duckdb`) | — | | Model | base `lm`/`glm` + `broom`; `tidymodels` for CV/tuning | `caret` | …
Read the whole file at its exact version.
How to install
mdr add 0xdarkmatter/claude-mods/r-ops@sha256:ddc23bb2a67c5f35The line at the top of this page pins the label git:20260708.17c8a3a, 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_myhuhbb2ij774twd)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jun 22, 2026 and Jul 8, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260708.17c8a3a latest | 2026-07-08 | 17c8a3a | 7,935 B | A | view · diff |
| git:20260708.e0b865f | 2026-07-08 | e0b865f | 7,777 B | A | view · diff |
| git:20260622.8bb0ecb | 2026-06-22 | 8bb0ecb | 8,746 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 (7935 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
0xdarkmatter/claude-mods · 68 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_myhuhbb2ij774twd GET https://markdownregistry.com/api/v1/resolve?ref=0xdarkmatter/claude-mods/r-ops GET https://markdownregistry.com/api/v1/blob/ddc23bb2a67c5f359292cad3c314d121617dd898e0fa7fada8af54abf1630fb0
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.