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

The description does add real behavior beyond the annotations (50-call quota, `cea_live_` token prefix, copy-paste snippets for named clients). However, it declares that the tool 'mints' a live credential, which creates persistent server-side state (the 50-call counter at minimum), while annotations declare readOnlyHint=true. That mismatch is the dominant issue; the description never clarifies key lifetime, revocation, or whether the returned secret is one-time-visible.

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?

A single front-loaded sentence with no filler paragraphs; the free/quota/prefix facts come first. The trailing client list is somewhat promotional and partially duplicates the schema's framework values, costing a little precision.

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-required-parameter, no-output-schema tool this covers what it produces (a token plus snippets), which is the essential part. But for a credential-issuing tool it omits repeat-call semantics, key expiry/scope, and any warning that the minted secret is sensitive, leaving an agent unable to predict side effects.

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 100%, so the baseline is 3. The description does map the framework parameter to concrete clients, but it lists 'Windsurf', which does not appear among the schema's enumerated values (claude-desktop, cursor, elizaos, agentkit), creating a mismatch. It says nothing about `agent_name` or `contact` beyond what the schema states.

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?

Names a specific verb+resource+scope: 'mints a 50-call free starter `cea_live_` Bearer token'. The token prefix, quota, and self-serve framing make it instantly distinguishable from every sibling tool, none of which issue credentials.

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?

'Self-Serve' and 'starter' imply onboarding/first-time use, but there is no explicit when-to-use, when-not-to-use, or alternative. Nothing tells an agent whether calling it repeatedly mints additional keys, whether one key per agent is expected, or what to do if a key already exists.

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