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roslyn:generate_constructor

Generates constructor code for a C# type based on its fields and properties. Provides ready-to-paste constructor, parameter list, and assignments.

Instructions

Generate a constructor from fields and/or properties of a type.

USAGE: Position on class/struct declaration. Use includeProperties=true for auto-properties. OUTPUT: constructorCode string ready to paste, parameter list, and field assignments. IMPORTANT: Uses ZERO-BASED coordinates (editor line - 1).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
filePathYesAbsolute path to source file containing the type
lineYesZero-based line number on the type declaration
columnYesZero-based column number
includePropertiesNoInclude properties with setters (default: false)
initializeToDefaultNoUse ?? default for nullable types (default: false)
Behavior4/5

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

No annotations, but description adds key behavioral info: output format and zero-based coordinate system. Could mention side effects or permissions, but adequate for a code generator.

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

Conciseness4/5

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

Concise three-part structure with clear 'USAGE', 'OUTPUT', 'IMPORTANT' sections. No redundancy, but could be slightly more scannable.

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

Completeness4/5

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

Covers purpose, usage, output, and coordinate system for all 5 parameters. Lacks error handling details but sufficient for typical use.

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

Parameters4/5

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

Schema covers all 5 parameters. Description adds context for includeProperties and notes zero-based coordinates, adding value beyond schema.

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?

Description clearly states it generates a constructor from fields/properties, with specific action and resource. Differentiates from sibling generation tools like 'generate_equality_members'.

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

Usage Guidelines4/5

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

Provides explicit usage: position on class/struct declaration and use includeProperties for auto-properties. Lacks exclusions or alternatives but sufficient for intended use.

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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