receipt_reload

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

With no annotations, the description carries the burden of behavior. It discloses that the tool re-reads from disk, which implies refreshing state, but it does not warn that unsaved in-memory edits from receipt_edit might be overwritten. That is a meaningful behavioral gap for a reload operation.

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 that states the operation, the resource, and the intent without any filler. Every word earns its place.

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 no-parameter tool with an output schema present, the description is nearly complete. The only missing context is an explicit note about whether reloading discards unsaved in-memory edits, which would help an agent avoid unintended state loss.

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?

The tool has zero parameters and schema description coverage is 100%, so no parameter documentation is needed. The baseline for zero-param tools is 4, and the description does not need to add parameter-level detail.

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 names a specific verb ('re-read') and resource ('receipts.json from disk') and gives the reason: to pick up external edits. This clearly distinguishes it from siblings like receipt_list or receipt_show, which inspect receipts rather than refresh the state.

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?

'Pick up external edits' communicates when to use the tool: after receipts.json has been modified outside of the MCP tooling. It does not explicitly list when not to use it or name alternatives, but the intended use case is reasonably clear.

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