update_spam_filter

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

No annotations provided, so description carries full burden. It reveals that for blacklist, the parameter replaces the list, but doesn't disclose behavior for other filter names, auth requirements, rate limits, or whether updates are destructive beyond the blacklist case.

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 with no fluff. First states purpose, second adds specific behavior. Efficient, though more detail could be added without bloat.

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 7 parameters and no output schema or annotations, the description is incomplete. It covers only one parameter's behavior under one condition. Lacks explanation of other filter types, parameter interactions, and return value.

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%, so description must compensate. Only the blacklist parameter is explained (for filter_name=blacklist). The other 6 parameters (silent, dry_run, enabled, timeout_length, exempt_user_level, filter_name) have no description. Insufficient value addition.

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 'Update a spam filter', which is a clear verb+resource. It distinguishes from sibling tools like get_spam_filter (read) and add_banned_phrases (add). However, it doesn't specify other filter types beyond blacklist.

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?

No explicit when-to-use or when-not-to-use guidance. While it mentions filter_name=blacklist behavior, it doesn't clarify when to use this vs add_banned_phrases (which might add vs replace). No exclusions or alternatives given.

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