Package index • secureguard

Core

Guardrail creation, composition, and execution

new_guardrail(): Create a new guardrail
secureguard_class(): S7 class: secureguard
guardrail_result(): Create a guardrail result
guardrail_result_class(): S7 class: guardrail_result
compose_guardrails(): Compose guardrails
run_guardrail(): Run a single guardrail
check_all(): Run all guardrails and collect results

Input Guardrails

Validate LLM input before processing

guard_prompt_injection(): Prompt injection guardrail
guard_topic_scope(): Topic scope guardrail
guard_input_pii(): Input PII guardrail

Code Guardrails

Analyse LLM-generated R code before execution

guard_code_analysis(): Code AST analysis guardrail
default_blocked_functions(): Default blocked functions
guard_code_complexity(): Code complexity guardrail
guard_code_dependencies(): Code dependency guardrail
guard_code_dataflow(): Code data flow guardrail

Output Guardrails

Filter and validate execution output

guard_output_pii(): PII output guardrail
guard_output_size(): Output size guardrail
guard_output_secrets(): Secret output guardrail
guard_output_entropy(): Entropy output guardrail
output_to_text(): Convert an R object to scannable text

AST Utilities

Parse and walk R code abstract syntax trees

parse_code(): Parse code string into expressions
walk_ast(): Walk an AST node recursively
walk_code(): Walk all expressions in a code string
call_fn_name(): Extract function name from a call expression
ast_depth(): Compute maximum AST nesting depth
ast_stats(): Compute summary statistics for R code AST

Pattern Libraries

Regex pattern collections for detection

pii_patterns(): PII detection patterns
detect_pii(): Detect PII in text
secret_patterns(): Secret detection patterns
detect_secrets(): Detect secrets in text
detect_secrets_decoded(): Detect secrets in text with decode-then-scan
injection_patterns(): Prompt injection detection patterns
detect_injection(): Detect prompt injection attempts
shannon_entropy(): Shannon entropy of a string
is_high_entropy(): Check if a string has high entropy

Integration

Compose guardrails into pipelines and securer hooks

as_pre_execute_hook(): Convert code guardrails to a securer pre-execute hook
guard_output(): Run output guardrails on a result
secure_pipeline(): Create a complete guardrail pipeline