List Facebook Pages owned/managed by the token

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

With no annotations, description carries full burden. Discloses it's a GET request and returns access_token, a key behavioral detail. Lacks mention of pagination or auth, but sufficient for a simple read operation.

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?

Single sentence front-loaded with HTTP method and purpose, no wasted words.

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?

Tool has 2 simple parameters and no output schema; description adequately conveys its role as a discovery tool within a family of Page tools. Could mention pagination but not critical.

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 description coverage is 0% (no descriptions on parameters). Description does not explain the 'fields' array or 'limit' integer, failing to compensate for missing schema documentation. Only implies output fields but not how to customize.

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 the verb (GET/List), resource (Facebook Pages), and outcome (returns id, name, access_token). Distinguishes from siblings by noting it's the first step to discover page_id for other Page tools.

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?

Explicitly says 'Run this first to discover page_id values for other Page tools', providing clear when-to-use guidance and establishing it as a prerequisite.

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