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

With no annotations, the description carries the full burden and does so richly: handle is single-use, claimed by the ingest job, and expires (default 1h); chunk-append semantics via upload_handle; coordinate passthrough behavior and suggested_ingest.args handling; and an explicit failure-recovery instruction (tasks/cancel on coordinate_passthrough_count=0 rather than waiting on national geocode). This is well beyond what annotations would normally supply.

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?

Front-loaded with a tier tag and the 'When' trigger, then proceeds through the staged-then-ingest flow and the four methods. It is long but dense with operative detail rather than filler; a few edge-case sentences (e.g. case-insensitive header passthrough) could be tightened, so not a perfect score.

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 6-param, zero-coverage staging tool with an output schema, this is unusually complete: it describes the return (suggested_ingest, upload_handle, geocode_plan fields), the handle lifecycle, and the downstream call contract. Nothing essential for correct invocation appears missing.

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 0% across 6 params, so the description must compensate. It explains rows, csv_file, csv_text, and upload_handle clearly, plus implies TTL via 'expires (default 1h)'. However guidance_handle is never addressed and ttl_seconds is not named, leaving two params with no semantic grounding.

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+resource (stage account/location rows or CSV) and immediately frames the tool as a pre-step to ingest_accounts, which it explicitly names as the downstream sibling. An agent can distinguish it from ingest_accounts and request_assignment_upload without opening either schema.

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?

Explicit 'When' condition (data too large to inline in a single ingest_accounts call), four enumerated staging methods with the conditions that select each (csv_file vs csv_text vs rows vs HTTP), plus the ordering constraint that ingest_accounts must run afterward. When-to-use and alternatives are both covered.

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