spv_document_upload

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

Annotations already declare readOnlyHint=false and idempotentHint=false, so the mutation profile is known. The description adds genuinely new behavior: HTML responses from an expired SPV session are rejected with SPV_NOT_A_DOCUMENT, and the body must be base64. It omits what happens on a repeated uuid (relevant given idempotentHint=false) and whether an existing stored file is overwritten.

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?

Three short sentences, no filler, with the workflow position, encoding requirement, and failure mode all front-loaded in that order.

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 four-parameter mutation with no output schema, the description covers workflow position, input encoding, and a key error case. It leaves the success response shape and overwrite/duplicate semantics unstated, which is a moderate but not severe gap.

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%, with each of the four parameters already documented, including that uuid comes from spv_sync_agent_result documents[]. The description's 'pass the body base64-encoded' largely restates the bodyBase64 schema text, adding little beyond the high-coverage schema baseline.

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 and resource: store the PDF fetched from ANAF descarcare for a given SPV document, and anchors it as step 3 of an SPV inbox sync. This is clearly distinguishable from siblings like spv_documents_download or spv_sync_agent_result.

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 'step 3 of an SPV inbox sync' framing gives clear situational context and implies the prerequisite that the agent already fetched the descarcare response. It does not explicitly name alternative tools or a 'do not use when' case, so it falls short of a 5.

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