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

Annotations only cover the safety profile (readOnlyHint=false, destructiveHint=false, openWorldHint=false); they say nothing about data visibility. The description adds a genuinely important behavioral trait — 'Submitted values are never returned' — signalling a write-only secret that cannot be read back. It still omits collision/overwrite behavior and permission requirements, so not a 5.

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?

Two sentences, no filler, and the operation is front-loaded before the non-obvious visibility constraint. Every sentence earns its place.

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?

An output schema exists, so return values need not be described, and the write-only note is a useful addition. However, with a nested environment-keyed values object and no parameter documentation anywhere, the description leaves an agent guessing about the core input shape.

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% across 3 parameters, so the description carries the full burden and delivers nothing. The nested 'values' object keyed by dev/prod/test environments is the least obvious part of the contract and is never explained; neither is the optional 'description' field.

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 ('Create a workspace secret'), which is immediately distinguishable from sibling reads and mutations like secret_list, secret_rotate, and secret_deactivate. It does not explicitly name or contrast with those siblings, so it stops short of a 5.

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?

No when-to-use guidance and no mention of alternatives. An agent is not told whether to use this versus secret_rotate when a secret already exists, nor what happens on a duplicate name.

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