Is Email
Evaluates whether input text is a valid email address, checking for standard formatting and a valid top-level domain.
Is Email checks whether a piece of text is a properly formatted email address. Run it wherever a model or user input is expected to produce a valid email.
What it does
Is Email is a deterministic, rule-based eval using a regex pattern designed for email validation. It checks the provided text against standard email formatting.
Input
| Required Input | Type | Description |
|---|---|---|
text | string | The content to check for email validity |
Output
| Field | Type | Description |
|---|---|---|
| Result | Pass / Fail | Pass means the text is a valid email address; Fail means it’s not |
| Reason | string | A plain-language explanation of the evaluation |
Run it from code
Call evaluate() with the template name and the eval’s required inputs. It returns the score and the reason.
Note
Before running: install the SDK and set FI_API_KEY / FI_SECRET_KEY.
from fi.evals import evaluate
result = evaluate(
"is_email",
text="john.doe@example.com",
)
print(result.score)
print(result.reason)import { evaluate } from "@future-agi/ai-evaluation";
const result = await evaluate(
"is_email",
{
text: "john.doe@example.com"
}
);
console.log(result);When to use
Run Is Email wherever a field or extracted value needs to be a valid email address.
- Text outputs from form-filling or data-extraction agents that populate an email field
- Data validation pipelines, before an extracted address is used to send mail or stored as a record
- Structured extraction tasks, to confirm a parsed field is actually a well-formed email rather than a partial match
What to do when Is Email fails
Review the input text to identify formatting issues. Common problems include a missing ”@” symbol, incorrect domain names, or invalid characters.
Consider revising the input to ensure it meets the standard email format.
Questions & Discussion