mmex_payees_get

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

No annotations provided, so description handles transparency. Reveals that db_path and db_key are optional with environment variable fallbacks, indicating a read operation. However, does not explicitly state it is idempotent or non-destructive, but context suggests read-only.

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?

Description is concise and well-structured: purpose sentence followed by bullet-pointed parameter explanations. Every sentence adds value with no redundancy.

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 an output schema exists, return values need not be explained. The description covers all parameters and their optionality. It lacks mention of the payee being returned, but this is implicit in 'get'. For a simple retrieval tool, it is mostly complete.

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?

Schema has 0% description coverage, but description adds meaning: id is payee ID, db_path is database file path (optional via env var), db_key is encryption key (optional via env var). This is valuable beyond the plain schema but could include more details like allowed formats.

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?

Clearly states 'Get a payee by its ID' – specific verb and resource with a retrieval criterion. Distinguishes from sibling tools like mmex_payees_list (list all) and mmex_payees_create (write).

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?

Implies usage when payee ID is known, but provides no explicit guidance on when to use this versus alternatives or prerequisites. No mention of when not to use or references to sibling tools.

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