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

With no annotations, the description carries the full burden of behavioral disclosure. It clearly reveals that the tool returns calldata and payloads rather than immediately cancelling, and that the agent must execute transactions from its own wallet when on-chain work is required. This is critical non-obvious behavior. It does not, however, disclose failure modes, side effects, or what happens when no on-chain work is required.

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 description is exactly two sentences: the first states the core purpose and the second summarizes return contents and the required follow-up. Every sentence carries essential information, and the most important 'prepare, not execute' is front-loaded in the first sentence.

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 tool with no output schema and no annotations, the description competently covers the essential facts: what it does, what it returns, and the agent's execution responsibility. It leaves some ambiguity around 'provider-specific execution instructions' and does not explain return shape in detail, but it is sufficient for an agent to correctly select and invoke the tool for bulk cancellation.

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?

All three parameters are fully described in the input schema (100% coverage), so the baseline is 3. The description adds only general context that it handles 'multiple' listings and produces per-listing outputs; it does not add meaning beyond the schema's parameter descriptions for 'cancelAll', 'listingIds', or 'agentId'.

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 opens with a specific verb-noun pairing: 'Prepare cancellation of multiple resale listings.' It clearly identifies resource (resale listings), scope (multiple), and the fact that it only prepares rather than executes. The phrase 'for each listing' and the sibling tool 'agentlux_resale_cancel' further distinguish this bulk variant from the singular cancel tool.

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?

The description implies usage for bulk cancellation through the word 'multiple' and the tool name 'bulk_cancel', but it never explicitly contrasts with the sibling 'agentlux_resale_cancel' or states when not to use this tool. The final sentence about executing from the agent's own wallet is operational guidance, not usage-vs-alternative guidance.

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