Cross-Platform Filesystem MCP Server

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. While 'Read contents' implies a read-only operation, it doesn't specify permissions required, error handling (e.g., for missing files), or output format (e.g., raw text vs. structured data). For a tool with no annotations, this leaves significant gaps in understanding its behavior.

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

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

The description is a single, efficient sentence that directly states the tool's function without unnecessary words. It is front-loaded with the core purpose ('Read contents of a text file'), making it easy to parse. Every word earns its place, with no redundancy or fluff.

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

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

Given the lack of annotations and output schema, the description is incomplete for a file-reading tool. It doesn't address key contextual aspects like what happens if the file doesn't exist, if binary files are handled, or what the return value looks like (e.g., string content). For a tool with 2 parameters and no structured output documentation, more detail is needed.

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

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

The schema description coverage is 100%, with both parameters ('path' and 'encoding') clearly documented in the schema. The description adds no additional parameter information beyond what the schema provides, such as path format examples or encoding options. This meets the baseline for high schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Read contents') and resource ('text file'), making the purpose immediately understandable. However, it doesn't differentiate from potential siblings like 'get_file_info' or 'search_files' which might also involve reading file content or metadata. The description is specific but lacks sibling distinction.

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

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

The description provides no guidance on when to use this tool versus alternatives. With siblings like 'get_file_info' (which might return metadata) and 'search_files' (which might search content), there's no indication of when 'read_file' is the appropriate choice. No exclusions or prerequisites are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.