Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/leolin990405/r-analytics-skill/r-datanpx skills add LeoLin990405/r-analytics-skill --skill r-datagit clone --depth 1 https://github.com/LeoLin990405/r-analytics-skillWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/leolin990405/r-analytics-skill/r-data)<a href="https://agentmods.dev/skills/leolin990405/r-analytics-skill/r-data"><img src="https://agentmods.dev/badge/skills/leolin990405/r-analytics-skill/r-data.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00048 | $0.00978 |
| Opus 5 | $0.00024 | $0.00489 |
| Sonnet 5 | $0.00010 | $0.00196 |
| Haiku 4.5 | $0.00005 | $0.00098 |
Grade A, and why
r-data scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 114 lines — stays where its author put it; the contents beside it link to each section on GitHub.
R Data Skill
Sub-skills
| Sub-skill | Description |
|---|---|
| r-data-manipulation | dplyr, data.table, tidyr |
| r-data-formats | CSV, Excel, JSON, Arrow, Parquet |
| r-data-database | SQL, MongoDB, Redis connections |
Data manipulation, formats, and database management in R.
Data Manipulation
| Package | Description |
|---|---|
| dplyr ★ | Fast data frames manipulation and database query |
| data.table ★ | Fast manipulation with concise syntax |
| tidyr | Tidy messy data with spread/gather |
| reshape2 ★ | Flexible reshape and aggregate |
| broom ★ | Convert models to tidy data frames |
| tidyverse | Meta-package for data science |
| lubridate | Date/time manipulation |
| stringr ★ | Consistent string processing |
| stringi ★ | ICU-based string processing |
| fuzzyjoin | Join on inexact matching |
| rlist | Non-tabular data manipulation |
| bigmemory | Shared memory matrices |
| snakecase | Case conversion |
| DataExplorer | Fast EDA with minimum code |
Data Formats
| Package | Description |
|---|---|
| arrow ★ | Apache Arrow interface |
| fst ★ | Lightning fast serialization |
| feather ★ | Fast binary data frame storage |
| readr ★ | Fast tabular data reading |
| readxl ★ | Read Excel files |
| haven | Read SPSS, Stata, SAS |
| jsonlite | JSON parsing |
| vroom | Fast delimited file reading |
| rio | Swiss-Army Knife for Data I/O |
| qs | Quick serialization |
| writexl | Write Excel files |
| yaml | YAML conversion |
| readODS | Read OpenDocument Spreadsheets |
| RcppTOML | TOML file parsing |
Database Management
| Package | Description |
|---|---|
| DBI | Common database interface |
| odbc | ODBC connections (DBI interface) |
| RSQLite | SQLite interface |
| RPostgres | PostgreSQL (DBI-compliant) |
| RMariaDB | MariaDB/MySQL interface |
| RMySQL | MySQL interface |
| ROracle | Oracle database interface |
| RODBC | ODBC database access |
| RJDBC | JDBC interface |
| mongolite | MongoDB streaming client |
| rmongodb | MongoDB driver |
| redux | Redis client |
| elastic | Elasticsearch HTTP API |
| RNeo4j | Neo4j graph database |
| RCassandra | Apache Cassandra interface |
| RHive | Apache Hive integration |
| rpostgis | PostGIS spatial interface |
What ships with it
44 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- r-data-database/DBI/SKILL.md 2.6 KB
- r-data-database/dbplyr/SKILL.md 1.3 KB
- r-data-database/elastic/SKILL.md 3.2 KB
- r-data-database/mongolite/SKILL.md 2.9 KB
- r-data-database/odbc/SKILL.md 1.1 KB
- r-data-database/RPostgres/SKILL.md 1.2 KB
- r-data-database/RSQLite/SKILL.md 1.1 KB
- r-data-database/SKILL.md 3.3 KB
- r-data-formats/arrow/SKILL.md 2.6 KB
- r-data-formats/feather/SKILL.md 1.2 KB
- r-data-formats/fst/SKILL.md 2.4 KB
- r-data-formats/haven/SKILL.md 998 B
- r-data-formats/jsonlite/SKILL.md 2.2 KB
- r-data-formats/qs/SKILL.md 2.4 KB
- r-data-formats/readr/SKILL.md 2.7 KB
- r-data-formats/readxl/SKILL.md 2.1 KB
- r-data-formats/rio/SKILL.md 2.7 KB
- r-data-formats/SKILL.md 3.0 KB
- r-data-formats/vroom/SKILL.md 2.6 KB
- r-data-formats/writexl/SKILL.md 651 B
- r-data-formats/yaml/SKILL.md 2.3 KB
- r-data-manipulation/broom/SKILL.md 3.0 KB
- r-data-manipulation/data.table/SKILL.md 2.6 KB
- r-data-manipulation/DataExplorer/SKILL.md 2.6 KB
- r-data-manipulation/dplyr/SKILL.md 2.8 KB
- r-data-manipulation/fuzzyjoin/SKILL.md 2.5 KB
- r-data-manipulation/janitor/SKILL.md 2.9 KB
- r-data-manipulation/lubridate/SKILL.md 1.8 KB
- r-data-manipulation/purrr/SKILL.md 2.8 KB
- r-data-manipulation/reshape2/SKILL.md 1.9 KB
- r-data-manipulation/SKILL.md 3.0 KB
- r-data-manipulation/stringi/SKILL.md 2.5 KB
- r-data-manipulation/stringr/SKILL.md 2.3 KB
- r-data-manipulation/tidyr/SKILL.md 2.3 KB
- r-data-validation/assertr/SKILL.md 2.0 KB
- r-data-validation/pointblank/SKILL.md 2.3 KB
- r-data-validation/SKILL.md 359 B
- r-data-validation/validate/SKILL.md 1.7 KB
- sub-skills/r-data-database/sub-skills/dbplyr/SKILL.md 1.3 KB
- sub-skills/r-data-database/sub-skills/odbc/SKILL.md 1.1 KB
- sub-skills/r-data-database/sub-skills/RPostgres/SKILL.md 1.2 KB
- sub-skills/r-data-database/sub-skills/RSQLite/SKILL.md 1.1 KB
- sub-skills/r-data-formats/sub-skills/haven/SKILL.md 998 B
- sub-skills/r-data-formats/sub-skills/writexl/SKILL.md 651 B
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 5d ago First seen · 114 lines · 48 tokens per session scan A dc87d02d3716
r-data is a skill published in the GitHub repository LeoLin990405/r-analytics-skill (5 stars, last pushed 5mo ago), licensed MIT. It adds 48 tokens to every session and 978 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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