Enum FormatConstraint 

pub enum FormatConstraint {
    Json,
    JsonWithKeys(Vec<String>),
    MaxLines(usize),
    MaxChars(usize),
    MatchesPattern(Regex),
    Custom(Arc<dyn Fn(&str) -> bool + Send + Sync>),
}

Format constraint for validating tool outputs.

Constraints are applied after sanitization to ensure tool output conforms to expected shapes before being passed to the agent.

Variants

Json

Output must be valid JSON.

JsonWithKeys(Vec<String>)

Output must be valid JSON containing all specified top-level keys.

MaxLines(usize)

Output must not exceed this many lines.

MaxChars(usize)

Output must not exceed this many characters.

MatchesPattern(Regex)

Output must match this regex pattern.

Custom(Arc<dyn Fn(&str) -> bool + Send + Sync>)

Custom validator function.

Implementations

impl FormatConstraint

pub fn validate(&self, output: &str) -> Result<(), FormatViolation>

Validate the given output against this constraint.

Returns Ok(()) if the output conforms, or a FormatViolation describing what went wrong.

Trait Implementations

impl Debug for FormatConstraint

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.