set_checklist_items

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

With no annotations, the description carries the full burden. It discloses the core operations (check, uncheck, toggle) and selection methods, but does not mention side effects, permissions, error handling (e.g., no matching items), or reversibility. This is a minimum viable disclosure for a mutation tool.

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 that conveys the action, target, and selection methods with no wasted words. It is concise and appropriately structured.

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?

The tool has 6 parameters, no annotations, and no output schema. The description covers the essential action and selection methods but leaves gaps such as the 'force' parameter's role and expected return values. This is adequate but not fully complete.

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 already describes most parameters. The description adds value by linking indices to read_checklist and clarifying that text matching can be exact or contains-based. This goes beyond the schema's brief descriptions, though the undocumented 'force' parameter remains unexplained.

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 the tool's action: 'Check, uncheck, or toggle specific checklist items.' It also specifies the selection methods (by index or by matching text), which distinguishes it from siblings like check_all_items. This gives a specific verb+resource that is not a tautology.

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 implies when to use this tool: for specific checklist items rather than all items. It references read_checklist for indices, which provides context on how to obtain input. However, it does not explicitly exclude alternatives or state when not to use it, so it falls slightly short of a 5.

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