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

The description discloses that the tool makes no network calls, does not pass rows as tokens, requires numpy, writes to lead_pipeline_result.json, and must be run verbatim. This adds substantial context beyond the annotations (readOnlyHint=true, openWorldHint=true), covering side effects and operational requirements.

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 longer than ideal, but each sentence carries important operational detail (size threshold, network behavior, verbatim instruction, file output). It is well-structured and front-loaded with the key use case, though could be tightened by removing the repetition about row tokens.

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 tool's complexity, the description is remarkably complete: it covers the purpose, output artifacts, constraints, dependencies, and exact usage instructions. The presence of an output schema means return values need no further explanation, and the description covers everything else an agent would need.

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%, so baseline is 3. The description adds value by explaining which parameters are safe to edit (PATH, TOUCHES, STAGE_HISTORY, AS_OF, CURRENCY, OUT) and noting that touches_path and stage_history_path are optional for engagement and funnel history, reinforcing schema semantics.

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 clearly states the tool returns a runnable Python script for scoring large lead pipelines, with specific output (conversion probabilities, money layer, Shapley attribution, queue). It explicitly distinguishes itself from the sibling tool by targeting pipelines larger than 500 rows.

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 opens with the explicit condition 'For pipelines LARGER than 500 lead rows,' and notes it is useful when outbound POST is blocked. This gives clear when-to-use guidance and implies the sibling handles smaller pipelines, though it doesn't name the sibling directly.

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