add-rcpp-integration SKILL.md skillA
add-rcpp-integration 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/add-rcpp-integration@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/add-rcpp-integration/SKILL.md- Versions recorded
- 4
- Latest version
- v1.0, committed Aug 17, 2026
- First version recorded
- Apr 19, 2026
- Size
- 6,918 bytes
- Repository stars
- 43
- License
- MIT
Add Rcpp or RcppArmadillo integration to an R package for high-performance C++ code. Covers setup, writing C++ functions, RcppExports generation, testing compiled code, and debugging. Use when an R function is too slow and profiling confirms a bottleneck, when you need to interface with existing C/C++ libraries, or when implementing algorithms (loops, recursion, linear algebra) that benefit from compiled code.
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
# Add Rcpp Integration Integrate C++ code into an R package using Rcpp for performance-critical operations. ## When to Use - R function is too slow and profiling confirms a bottleneck - Need to interface with existing C/C++ libraries - Implementing algorithms that benefit from compiled code (loops, recursion) - Adding RcppArmadillo for linear algebra operations ## Inputs - **Required**: Existing R package - **Required**: R function to replace or augment with C++ - **Optional**: External C++ library to interface with - **Optional**: Whether to use RcppArmadillo (default: plain Rcpp) ## Procedure ### Step 1: Set Up Rcpp Infrastructure ```r usethis::use_rcpp() ``` This: - Creates `src/` directory - Adds `Rcpp` to LinkingTo and Imports in DESCRIPTION - Creates `R/packagename-package.R` with `@useDynLib` and `@importFrom Rcpp sourceCpp` - Updates `.gitignore` for compiled files For RcppArmadillo: ```r usethis::use_rcpp_armadillo() ``` **Got:** `src/` directory created, DESCRIPTION updated with `Rcpp` in LinkingTo and Imports, and `R/packagename-package.R` contains `@useDynLib` directive. …
Read the whole file at its exact version.
How to install
mdr add pjt222/agent-almanac/add-rcpp-integration@sha256:3995a65796f4f631The 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_fhc4mxr4vtcaoan2)
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 | 6,918 B | A | view · diff |
| v1.0 | 2026-06-05 | 33b561c | 6,889 B | A | view · diff |
| v1.0 | 2026-04-19 | a31852a | 6,885 B | A | view · diff |
| v1.0 | 2026-04-19 | e334ebd | 6,948 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 (6918 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 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fhc4mxr4vtcaoan2 GET https://markdownregistry.com/api/v1/resolve?ref=pjt222/agent-almanac/add-rcpp-integration GET https://markdownregistry.com/api/v1/blob/3995a65796f4f6312649fb68ea40abac86a3689e99aa593f560bda732cd58e3e
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.