adverse_events
Search 20M+ FDA adverse drug event reports via openFDA. Patient outcomes, drugs, reactions.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| drug | Yes | Drug name | |
| limit | No | Max results, default 20 |
tollbooth
Schema Changelog
Changes observed during successful MCP inspections.
- First observed
TDQS
B3.3/5.0
Behavior2/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations are empty, so the description must fully disclose behavior. It mentions output fields but lacks information on rate limits, authentication, data freshness, or other operational traits.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences clearly conveying the tool's function with no redundancy. Front-loaded with key information.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness3/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Lacks output schema and details on result format, pagination, or error handling. The description gives a hint of output content but is not fully complete for an agent to use without assumptions.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the baseline is 3. The description does not add further meaning beyond the schema's parameter descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description specifies the verb 'Search' and the resource '20M+ FDA adverse drug event reports via openFDA', clearly distinguishing it from sibling tools like drug_labels and drug_recalls.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance on when to use this tool vs. alternatives, nor any exclusions or context. The description merely states what it does.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.