List 10DLC campaigns

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

Annotations already indicate readOnlyHint=true and destructiveHint=false. Description adds that it returns snake_case TCR objects and includes the note about number assignment, which is helpful behavioral context beyond annotations.

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?

Two concise sentences: first defines the main action, second adds critical prerequisite knowledge. No redundant or unnecessary 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?

With 3 parameters fully documented in schema and no output schema, the description covers the listing purpose, filter capability, and a key prerequisite. It could mention pagination behavior but that is implied by parameters.

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 coverage is 100% with descriptions for all 3 parameters. The description adds minimal extra meaning (e.g., 'optionally filtered by parent brand' for brand_id) but the schema already covers parameter details adequately.

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 it lists 10DLC campaign objects, with optional filter by parent brand. It distinguishes from sibling tools like msg_list_brands (brands) and msg_get_campaign (single campaign) by specifying it's listing campaigns.

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?

Provides context for when to use (listing campaigns) and mentions a prerequisite for downstream use (msg_assign_numbers before msg_send), but doesn't explicitly exclude alternative tools.

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