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

Annotations already cover the safety profile (readOnlyHint/destructiveHint=false), so the bar is lower. The description adds real value beyond them by disclosing the return content (time, user or source, what changed) and an auth requirement (Cotlet API key with access to this app), which annotations do not convey.

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?

Front-loaded with purpose, then return shape, then a usage example, then auth. Tight overall, though 'Returns the History tab of an item' partially restates the opening 'Audit trail of one item' line.

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 one-parameter read tool with no output schema, the description carries its weight: it explains what the entries contain, gives a motivating use case, and notes the credential requirement. Nothing an agent needs in order to call it correctly is missing.

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% and the single required item_id is documented in the schema as 'Item ID from list_items.' The description's phrase 'of one item' reinforces the single-item scope but adds no syntax or format detail beyond the schema, so the baseline 3 applies.

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?

States a specific verb and resource ('Audit trail of one item') and enumerates exactly what events the trail covers: submission, field changes, publishing, approval and archiving. An agent can distinguish it from dext_get_item (current item data) without opening either schema.

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 a concrete triggering scenario ('see who published an item before you unarchive it') that ties the tool to the sibling unarchive workflow. It does not, however, name an exclusion or alternative such as get_item for current state, so the routing guidance is clear but incomplete.

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