reply_personal_message

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

No annotations are provided, so the description carries the full behavioral burden. It discloses that the reply preserves conversation and scope, but it omits key mutation details such as side effects, required permissions, what happens to the consumed message, or what the response contains.

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 front-loaded sentence with no filler. It is efficient, though arguably too sparse for a five-parameter mutation tool.

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 five parameters, no annotations, no output schema, and many sibling tools, the description is not complete enough for reliable invocation. It establishes purpose but leaves parameter meaning, side effects, and alternative selection largely unexplained.

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?

There are five parameters with 0% schema description coverage, yet the description does not explain any of them. It does not clarify the roles of id, sender, expects, message, or reply_id, leaving the agent to infer required relationships and the expects enum from the schema alone.

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 states a clear verb and resource: replying directly to a personal-agent message. It adds scope through 'consumed' and 'preserving its conversation and scope', but it does not explicitly distinguish this from siblings like reply or send_personal_message.

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 word 'consumed' implies the message must already be consumed, and preserving conversation/scope implies replying within an existing thread. However, there are no explicit when-to-use or when-not-to-use rules, and no named alternatives despite several related sibling tools.

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