This MCP server exhibits significant definition quality gaps across all dimensions. Tool naming is inconsistent and sometimes unclear (e.g., 'add-build-phase run-script' vs 'add-build-phase copy-files' are subcommands, not distinct tools). Descriptions are present but generic and often lack context about when to use each tool or what it returns. Parameter descriptions are minimal or absent in many cases. Critically, NO OUTPUT SCHEMAS are documented, the rubric requires tools to document what they return so LLMs can plan downstream calls and extract data. Input schemas are visible in the source (ArgumentParser decorators), but output structure is completely undocumented. Error handling is absent, no recovery guidance, no error categorization, no actionable messages. The 20 tools span a wide domain (project creation, file management, build configuration, Swift packages) but lack the composition metadata (chaining IDs, idempotency hints) needed for agents to chain them effectively. Naming convention is inconsistent: some tools use hyphens (add-file, remove-file) while others use hyphens in subcommand contexts. No enum constraints are visible on parameter values despite tools accepting restricted options (e.g., productType='app'|'framework'|'staticLibrary', platform='iOS'|'macOS'|'tvOS'|'watchOS'). This forces LLMs to guess valid values or hallucinate invalid options.

• Add comprehensive output schemas for all 20 tools. Document the structure of responses (e.g., for list-targets: {targets: [{name: string, productType: string, buildConfigurations: string[]}], totalCount: number}). This enables LLMs to plan downstream calls.
• Replace all example values in parameter descriptions with explicit enum constraints in the schema. E.g., for platform parameter: add enum: ['iOS', 'macOS', 'tvOS', 'watchOS'] to the JSON schema, and update description to 'Platform target (defaults to iOS)'.
• Include: WHAT the tool does, WHEN to use it (vs similar tools), and a hint about what it returns. E.g., 'List all source files in the project. Call this before add-file to verify the file doesn't already exist. Returns array of {path, target, group}.'
• Add error handling and recovery guidance to all tools. Catch common failures (file not found, target not found, invalid bundle ID) and return: {error: true, message: 'Target "MyApp" not found. Available targets: [list]. Call list-targets() to see all.'}
• Add confirmation step or dry-run flag to destructive operations (remove-file, remove-target, remove-swift-package). E.g., add optional `confirm: boolean` parameter; if false, return {dryRun: true, wouldDelete: {...}}. Require explicit confirm=true for actual deletion.
• Add pagination to list_* tools. Add parameters: limit (default 20, max 100), offset (default 0). Return {items: [...], totalCount: number, hasMore: boolean}. Document the default and max limits in descriptions.