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

No annotations are provided, so the description carries the burden. It usefully discloses what the response contains (platform, currency, optionally event history sorted ascending), but says nothing about permissions, error behavior, or what happens for a nonexistent id. Adequate but incomplete for a tool with zero annotation coverage.

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?

Two tight sentences with no waste. The core retrieval action is front-loaded, followed by the optional embedding and the ID source, in a logical 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?

There is no output schema, so the description must cover returns, and it does name the key response contents and the optional event history. Minor gaps remain around ordering guarantees, pagination (none needed for a single fetch), and failure modes, but it is sufficient for correct invocation.

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 both parameters are already documented in the schema, including includeEvents' default of false. The description adds only the 'sorted asc' ordering detail for the embedded events; the dealId provenance note merely repeats the schema. Baseline 3 is appropriate.

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: 'Retrieve a single venture deal by id.' The scope ('single', by id) distinguishes it from list_venture_deals and from mutation siblings like update_venture_deal, though it does not explicitly contrast with get_venture_deal_metrics.

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?

Gives clear context: obtain the dealId from list_venture_deals, and use includeEvents=true when event history is wanted. There is no explicit when-not guidance or mention of the metrics sibling, but the usage path is unambiguous.

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