type_text

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 behavioral disclosure. The description only mentions the underlying CDP method and gives an example call, but does not explain behavior such as whether it inserts into the focused element, whether it clears existing content, whether it triggers input events, or error conditions. For a tool with zero annotations, this is severely lacking.

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 line and is extremely short, but this is under-specification rather than genuine conciseness. It front-loads an example call which is useful, yet it devotes space to the internal CDP implementation detail instead of user-facing purpose.

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?

With 1 parameter, no annotations, and no output schema, the description must carry the full explanatory burden, but it provides almost nothing. It does not describe prerequisites (focused element), side effects, return values, or interaction with sibling tools. This is inadequate for a tool that actually performs a user-visible action.

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% and there is only one parameter (text), yet the description provides essentially no additional meaning beyond the schema. The example 'type_text("hello")' implies text is inserted, but it doesn't explain encoding, newline handling, or any constraints on the text value.

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 'type_text("hello") — CDP Input.insertText' shows a usage example and implementation detail, but doesn't state the verb+resource purpose clearly. It mentions the CDP method, implying text insertion, but never actually says 'types text into the focused field' or similar. The purpose is only inferable from the name plus the CDP hint.

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?

There is no guidance on when to use this tool versus alternatives. Sibling tools include fill_input, press_key, click_text — all potentially overlapping with typing text. The description offers no differentiation or selection criteria.

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