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lerlerchan

rstudio-mcp-server

by lerlerchan

r_document_package

Generate R package documentation automatically using devtools::document() and roxygen2. Simplify package development by converting inline comments into Rd files.

Instructions

Generate documentation for an R package using devtools::document() (roxygen2)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
package_pathYesPath to the R package directory
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden for behavioral disclosure. It only states the underlying function (devtools::document()) but fails to mention that it modifies the package directory (creates .Rd files, updates NAMESPACE) or whether it is destructive or idempotent. The agent lacks critical behavior insights.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single concise sentence of 10 words, front-loaded with the essential action. Every word is meaningful, and there is no redundancy.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity (1 parameter, no output schema), the description is minimally adequate. However, it lacks context on outcomes (e.g., what files are generated), prerequisites, and error conditions. A slightly fuller description would improve completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema covers 100% of the single parameter with a clear description ('Path to the R package directory'). The tool description adds no additional meaning beyond the schema, so baseline score of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool generates documentation for an R package using devtools::document() and roxygen2. It uses a specific verb and resource, distinguishing it from sibling tools like r_build_package or r_check_package that perform different actions.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no explicit guidance on when to use this tool versus alternatives. It does not mention prerequisites, such as requiring roxygen comments, or scenarios where this tool is appropriate (e.g., after editing documentation, before building). The user must infer usage from the tool's name and context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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