update_checklist_item

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

No annotations are provided, so the description carries the full burden of disclosure. 'Update' implies mutation, but the description doesn't disclose what happens on partial updates (e.g., whether unspecified fields are preserved), whether changes propagate to linked tasks, or any permission/authorization requirements. It also doesn't warn about effects on nested items or order when reordering. For a mutation tool with zero annotation coverage, this is under-specified.

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 compact sentence with a parenthetical enumerating the update capabilities. It wastes no words and gets to the point quickly. The parenthetical is efficient at conveying scope. However, it's slightly too terse given the lack of annotations—it could afford one more sentence for behavioral context while remaining concise.

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 mutation tool with no annotations, no output schema, and 6 parameters (of which several are optional fields with semantic nuance), the description is thin. It doesn't explain return behavior, validation rules, prerequisite checks, or interaction between parameters (e.g., whether parent and resolved can be set together). A user updating a checklist item would benefit from knowing update semantics. The schema covers 83% but the description doesn't compensate for the missing behavioral context.

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 83%, so the schema documents most parameters well (parent, assignee, resolved, checklist_id, checklist_item_id all have descriptions). The description's parenthetical list (rename, check/uncheck, reassign, reorder) adds value by mapping to which parameters correspond to which operations, especially hinting at reorder behavior not fully explicit in the schema. However, no parameter beyond what the schema states is clarified, so baseline 3 is appropriate.

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 a specific verb (update) and resource (checklist item) with a parenthetical enumerating the update dimensions: rename, check/uncheck, reassign, reorder. This is clear and distinguishes it from sibling tools like create_checklist_item and delete_checklist_item. It doesn't mention nesting/reordering explicitly in the description (though 'reorder' is implied), which rounds out the purpose well.

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 description gives no guidance on when to use this tool vs alternatives. With siblings like create_checklist_item, delete_checklist_item, and update_checklist present, the agent gets no direction on when modifying an existing item via this tool is appropriate versus recreating it. No exclusions or contextual triggers are mentioned. This is a significant gap given the rich sibling landscape.

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