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

Annotations already declare readOnly, idempotent, non-destructive and open-world behavior, so the safety profile is covered. The description adds a useful non-obvious trait, the flat 5-point cost per successful run, but says nothing about failure behavior (not-found projects, bad URLs) or auth needs.

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-loads the verb and resource, then packs the returned fields into one dense clause, plus a short cost sentence. Nearly every token earns its place, though the long field enumeration is close to padding.

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 single-parameter read tool with full annotation coverage and no output schema, the description does the needed work by listing the returned data and disclosing the point cost. Missing only minor context such as error handling for invalid creator/project strings.

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 description coverage is 100% and there is a single parameter, so the schema already documents the 'creator/project or URL' format with an example. The description only echoes that dual input form without adding format or resolution details.

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 ('Get one Kickstarter project') and enumerates the returned fields, so the agent knows exactly what comes back. It implies singularity, which distinguishes it usefully from a listing, but it never names the search sibling or explicitly contrasts itself with it.

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?

Usage is only implied: the agent can infer this is for fetching a single known project rather than searching. There is no explicit when-to-use, when-not-to-use, or reference to run_kickstarter_projects_search as the alternative for discovery.

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