get_subscriber_status

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

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds valuable behavioral context by specifying the contents of the status snapshot and the prerequisite key, going beyond what annotations provide.

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 efficient sentences: first states purpose and deliverables, second gives usage timing and prerequisite. No unnecessary words, front-loaded with action.

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?

Despite no output schema, the description covers the key output fields and prerequisite. For a simple tool with no inputs, this is complete and tells the agent everything needed to invoke it correctly.

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?

No parameters in input schema (0 params, 100% coverage). The description adds meaning by noting the prerequisite environment variable (ALGOCHAINS_SUBSCRIBER_KEY) that must be set, which is not a parameter but useful context.

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 uses a specific verb ('Return') and clearly identifies the resource ('full status snapshot for the authenticated subscriber'). It explicitly lists the fields included (bots, paper account balance, key_active flag, suggested next_steps), distinguishing it from sibling tools like get_account or get_system_health.

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?

States it is the 'Good first call after setting ALGOCHAINS_SUBSCRIBER_KEY' and explicitly mentions the prerequisite ('Requires ALGOCHAINS_SUBSCRIBER_KEY to be set'). Does not explicitly compare with alternatives, but the context is clear enough.

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