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

No annotations are supplied, so the description carries the burden; it does imply a non-mutating lookup and partly discloses return content by naming the card fields. It says nothing about behavior on an unknown agentId, permissions, or whether the card is cached/live, which leaves real gaps for an annotation-free 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?

A single front-loaded sentence with the resource first and the payload contents after the colon; nothing is wasted. It is efficient but at the cost of any usage or behavioral detail.

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?

There is no output schema, so the description is the only signal about return values, and 'name, capabilities, supported tasks' is a rough sketch of a card's structure. For a simple two-parameter read 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 description coverage is 100%, including the chain enum with its default and the Sepolia caveat, so the schema already does the heavy lifting. The description adds no meaning about agentId or chain beyond it, making the baseline 3 appropriate.

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 ('Get') and resource ('agent A2A card') and enumerates the returned fields (name, capabilities, supported tasks). It does not distinguish the tool from near-siblings such as actora_identity_get or actora_central_agent_list, which may superficially look like the same record.

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?

Usage is only implied by the word 'Get' and the A2A prefix – an agent can infer this is the read step before actora_a2a_create_task or actora_a2a_complete_task. There is no explicit when-to-use or when-not-to-use statement, and no guidance on preferring this over identity or listing lookups.

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