knip-mcp-server/build/tools/knip-get-unused-dependencies.js

MCP server for knip.dev integration to help AI agents identify and clean up unused code

export function createKnipGetUnusedDependenciesTool(knipClient, config) {
    return {
        name: 'knip_get_unused_dependencies',
        description: 'Get unused dependencies and devDependencies',
        inputSchema: {
            type: 'object',
            properties: {
                workspace: {
                    type: 'string',
                    description: 'Specific workspace to analyze (for monorepo setups)',
                },
                type: {
                    type: 'string',
                    enum: ['dependencies', 'devDependencies', 'all'],
                    default: 'all',
                    description: 'Type of dependencies to check',
                },
            },
        },
        execute: async (args) => {
            try {
                const type = args.type || 'all';
                const result = await knipClient.getUnusedDependencies(type, args.workspace);
                const response = {
                    success: true,
                };
                if (type === 'dependencies') {
                    response.unusedDependencies = result;
                    response.dependenciesCount = result.length;
                }
                else if (type === 'devDependencies') {
                    response.unusedDevDependencies = result;
                    response.devDependenciesCount = result.length;
                }
                else {
                    // For 'all', we need to get both separately
                    const deps = await knipClient.getUnusedDependencies('dependencies', args.workspace);
                    const devDeps = await knipClient.getUnusedDependencies('devDependencies', args.workspace);
                    response.unusedDependencies = deps;
                    response.dependenciesCount = deps.length;
                    response.unusedDevDependencies = devDeps;
                    response.devDependenciesCount = devDeps.length;
                    response.totalCount = deps.length + devDeps.length;
                }
                return response;
            }
            catch (error) {
                return {
                    success: false,
                    error: error instanceof Error ? error.message : String(error),
                };
            }
        },
    };
}
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