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beruang
by beruang

lsp_hover

Retrieve hover information for code at a specific file and position by querying the language server.

Instructions

Request textDocument/hover from the LSP server and return normalized contents.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
filePathYesAbsolute or workspace-relative path to the file.
positionYesLine/character position (zero-based) in the file.
Behavior2/5

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

No annotations exist, so description carries full burden. It only mentions 'normalized contents' without clarifying side effects, preconditions (e.g., file must be open), or failure modes. Key behavioral traits are omitted.

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, succinct sentence that communicates the core action without extraneous words. It is immediately understandable.

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

Completeness2/5

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

No output schema is present, and the description does not describe the return value structure or important context such as file open requirements. The tool is simple but the description lacks sufficient detail for an agent to use it confidently.

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?

Schema_description_coverage is 100%; the schema already describes both parameters well. The description adds no extra meaning beyond the schema, meeting the baseline of 3.

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 action (Request textDocument/hover) and the resource (LSP server). It explicitly identifies the tool's purpose among many sibling LSP tools.

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?

No guidance is provided on when to use this tool vs alternatives like lsp_completion or lsp_signature_help. Usage context is only implied by the tool's standard function.

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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