perform_transaction

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

With no annotations, the description must convey behavioral details, but it only states 'confirm'. It fails to disclose whether the operation is idempotent, irreversible, requires authorization, or what side effects occur (e.g., state change, notification triggers).

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 a single sentence with no extraneous content. While efficient, it could be slightly expanded to improve clarity without losing conciseness.

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?

Given the complexity of a transaction tool with siblings and no output schema, the description is insufficient. It does not explain prerequisites (e.g., transaction must be in a specific state), return value, or how it fits into the broader workflow.

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%, and the parameter description is present in the schema ('Payme transaction ID'). The description adds no additional meaning beyond what the schema already provides, warranting the baseline score of 3 for high coverage.

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 specifies the verb 'perform' and resource 'transaction' with clarification 'confirm', but it lacks a clear definition of what performing a transaction entails in the transaction lifecycle. It vaguely distinguishes from siblings like cancel_transaction and create_transaction but does not precisely define the action.

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 provides no guidance on when to use this tool versus alternatives such as cancel_transaction or check_transaction. No preconditions or use-cases are mentioned, leaving the agent without context for appropriate invocation.

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