twilio_delete_message

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

No annotations are provided, so the description carries the full burden for a destructive operation, yet it says nothing about irreversibility, required permissions, whether the message body/media are also removed, or whether deletion affects delivery status. The only behavioral signal is the ambiguous distinction between deleting a "record" versus the message itself.

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?

A single short sentence with the key action and resource front-loaded, plus a useful SID-format cue. The "(Beta)" tag is minor noise but does convey release status, and nothing else is wasted.

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?

For a destructive tool with no annotations, no output schema, and an empty parameter schema, the description should clarify how the target is identified and what the outcome looks like. Instead it leaves a critical gap: an agent cannot determine from either the schema or the description how to specify which message to delete.

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 is empty (0 parameters), which would normally set a baseline of 4, but the description references SM…/MM… SIDs, implying a message identifier parameter that does not exist in the schema. This mismatch leaves the agent unsure how the target message is actually selected, so the description adds suggestive but incomplete parameter meaning.

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 gives a specific verb and resource ("Delete a message's record") scoped to a Twilio account, which separates it from siblings like twilio_get_message and telegram_delete_message. The parenthetical "(Beta)" and the phrase "message's record" hint that only the stored record is removed rather than the delivered message, but this nuance is never made explicit.

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?

There is no statement of when to use this tool versus twilio_get_message, twilio_api_request, or the many sibling delete tools, and no prerequisites (connected account requirement is only implied). The agent is left to infer usage entirely from the name and the word "delete".

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