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scan_dead_code

Scans a TypeScript or JavaScript project to identify unused imports, variables, and exported functions without cross-file references. Results are stored for automatic removal.

Instructions

Scans a TypeScript/JavaScript project for dead code: unused imports, unused variables, and exported functions with no cross-file references. Results are stored in session state for use by cleanse.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
project_rootYesAbsolute path to the project root directory
includeNoGlob patterns to include, e.g. ['src/**/*.ts']. Defaults to all TS/JS files.
excludeNoGlob patterns to exclude, e.g. ['**/*.test.ts', 'node_modules/**']
Behavior4/5

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

With no annotations, the description discloses that results are stored in session state—a key behavioral trait. It outlines the scanning scope but omits potential limitations like performance or handling of JavaScript files.

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?

Two sentences, no wasted words. Front-loaded with the primary function, then storage detail. Highly efficient.

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?

For a tool with 3 params, no output schema, and no annotations, the description covers purpose, stored results, and sibling linkage. Missing guidance on interpreting results beyond use by `cleanse`, but adequate overall.

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 coverage is 100% (all params described). The description adds the default for `include` (all TS/JS files) not present in the schema, enhancing understanding beyond the schema alone.

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 specifies the tool scans TypeScript/JavaScript projects for dead code types (unused imports, variables, exported functions), distinguishing it from siblings like scan_complexity. The verb 'scans' and resource 'dead code' are clear.

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?

The description states results are stored for use by `cleanse`, implying a preparatory context. It doesn't explicitly state when-not-to-use or alternatives, but the sibling context (e.g., scan_complexity) provides differentiation.

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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