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depguard_sweep

Find unused npm packages by scanning source imports and cross-referencing package.json. Detects phantom dependencies (installed but undeclared). Useful after installing multiple packages during coding.

Instructions

Find unused npm packages in the project. Scans source files for imports and cross-references with package.json. Also detects phantom deps (installed but not declared). Call this after a coding session where you installed multiple packages — some may no longer be needed.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pathYesAbsolute path to project root (must contain package.json)
includeDevDependenciesNoInclude devDependencies in scan (default: false)
Behavior3/5

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

Describes scanning behavior and phantom dep detection, but lacks explicit statement about side effects (e.g., no modifications) – important since no annotations exist.

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?

Three sentences, front-loaded with core function, no wasted words.

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 functionality and usage context, but lacks description of return value format (e.g., list of package names). Good but not fully complete given no output schema.

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 has 100% description coverage; description adds no extra meaning beyond schema. Baseline 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?

Clear verb+resource: 'Find unused npm packages in the project.' Distinguishes from siblings like depguard_audit by focusing on cleanup after coding sessions.

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?

Explicitly advises calling 'after a coding session where you installed multiple packages,' providing a clear when-to-use scenario.

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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