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

The annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true, and openWorldHint=false; the description adds the crucial reason behind that profile with "opens nothing by itself," explaining that a tool named discard_* performs no mutation. It also supplies ecosystem context (Deputy has a REST API but no official MCP server), which justifies the browser-automation workflow. It does not cover authentication or rate-limit behavior, so it is strong rather than exhaustive.

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 key constraint ("opens nothing by itself") is front-loaded in the second sentence and the agent's next step follows immediately. The audience clause "from ChatGPT, Claude or any AI agent" is redundant padding, and the closing API/MCP note is tangential to invocation, though it does explain why a browser is required.

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 zero-parameter, read-only guidance tool with no output schema, the description covers what it returns (step-by-step screens, buttons, fields) and what to do next. It does not describe the structure or granularity of the returned procedure, but no essential calling information 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?

The input schema is an empty object with additionalProperties=false, so there are zero parameters to explain; the baseline for a no-parameter tool applies. Nothing in the description is needed to disambiguate inputs, and nothing contradicts the schema.

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 names a concrete verb and resource ("Discard timesheet in the user's own Deputy account") and then immediately clarifies that the tool's actual output is a step-by-step guide ("screens, buttons, fields"), which resolves the ambiguity created by a destructive-sounding name. It does not explicitly contrast itself with the Deputy siblings that list or approve timesheets, leaving that differentiation to the surrounding catalog.

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?

It gives explicit chaining guidance: call this to obtain the procedure, then "do it with the cotlet_browser_* tools in the user's Deputy Cloud Browser." That tells the agent both the prerequisite and the follow-up action. It stops short of stating any when-not-to-use condition or naming a competing Deputy tool as an alternative.

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