Guardrails

Configuration

Content to Validate*

Enter content to validate

Validation Type*

Valid JSON

Regex Pattern

e.g., ^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$

Shown when validationType is 'regex'.

Knowledge Base

Select knowledge base

Shown when validationType is 'hallucination'.

Model

Type or select a model...

Shown when validationType is 'hallucination'.

Confidence

Shown when validationType is 'hallucination'.

Number of Chunks to Retrieve

Available in Advanced mode. Shown when validationType is 'hallucination'.

API Key

••••••••

Shown when validationType is 'hallucination' and applicable to the selected model at runtime.

PII Types to Detect

Shown when validationType is 'pii'.

Action

Block Request

Shown when validationType is 'pii'.

Language

English

Shown when validationType is 'pii'.

Tools

`guardrails_validate`

Validate content using guardrails (JSON, regex, hallucination check, or PII detection)

Input

Parameter	Type	Required	Description
`input`	string	Yes	Content to validate (from wired block)
`validationType`	string	Yes	Type of validation: json, regex, hallucination, or pii
`regex`	string	No	Regex pattern (required for regex validation)
`knowledgeBaseId`	string	No	Knowledge base ID (required for hallucination check)
`threshold`	string	No	Confidence threshold (0-10 scale, default: 3, scores below fail)
`topK`	string	No	Number of chunks to retrieve from knowledge base (default: 10)
`model`	string	No	LLM model for confidence scoring (default: gpt-4o-mini)
`apiKey`	string	No	API key for LLM provider (optional if using hosted)
`piiEntityTypes`	array	No	PII entity types to detect (empty = detect all)
`piiMode`	string	No	PII action mode: block or mask (default: block)
`piiLanguage`	string	No	Language for PII detection (default: en)

Output

Parameter	Type	Description
`passed`	boolean	Whether validation passed
`validationType`	string	Type of validation performed
`input`	string	Original input
`error`	string	Error message if validation failed
`score`	number	Confidence score (0-10, 0=hallucination, 10=grounded, only for hallucination check)
`reasoning`	string	Reasoning for confidence score (only for hallucination check)
`detectedEntities`	array	Detected PII entities (only for PII detection)
`maskedText`	string	Text with PII masked (only for PII detection in mask mode)

Input

Parameter	Type	Required	Description
`input`	string	Yes	Content to validate (automatically receives input from wired block)
`validationType`	string	Yes	Type of validation to perform (json, regex, hallucination, or pii)
`regex`	string	No	Regex pattern for regex validation. Shown when validationType is 'regex'.
`knowledgeBaseId`	string	No	Knowledge base ID for hallucination check. Shown when validationType is 'hallucination'.
`threshold`	string	No	Confidence threshold (0-10 scale, default: 3, scores below fail). Shown when validationType is 'hallucination'.
`topK`	string	No	Number of chunks to retrieve from knowledge base (default: 5). Shown when validationType is 'hallucination'.
`model`	string	No	LLM model for hallucination scoring (default: gpt-4o-mini). Shown when validationType is 'hallucination'.
`apiKey`	string	No	API key for LLM provider (optional if using hosted). Shown when validationType is 'hallucination' and applicable to the selected model at runtime.
`piiEntityTypes`	json	No	PII entity types to detect (array of strings, empty = detect all). Shown when validationType is 'pii'.
`piiMode`	string	No	PII action mode: block or mask. Shown when validationType is 'pii'.
`piiLanguage`	string	No	Language for PII detection (default: en). Shown when validationType is 'pii'.

Output

Parameter	Type	Description
`input`	string	Original input that was validated
`maskedText`	string	Text with PII masked (only for PII detection in mask mode)
`validationType`	string	Type of validation performed
`passed`	boolean	Whether validation passed (true/false)
`score`	number	Confidence score (0-10, 0=hallucination, 10=grounded, only for hallucination check)
`reasoning`	string	Reasoning for confidence score (only for hallucination check)
`detectedEntities`	array	Detected PII entities (only for PII detection)
`error`	string	Error message if validation failed

Usage Instructions

Validate content using guardrails. Check if content is valid JSON, matches a regex pattern, detect hallucinations using RAG + LLM scoring, or detect PII.

Notes

Category: blocks
Type: guardrails

Guardrails

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