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Instructor

Framework

Structured outputs for LLMs with validation and retries

Jason Liu345.0K installs4.6 (2.1K)
Source
91
Trusted
Security
90
Quality
92
Maintenance
91
Safety Tier Low Risk
Security ScanScan Passed
PriceFree
Last Scanned5/12/2026

About

The most popular library for extracting structured data from LLMs with 3M+ monthly downloads. Type-safe extraction with automatic validation, retries, and streaming. Available in Python, TypeScript, Go, Ruby, Rust.

Tags

#framework#structured-output#validation#multi-language

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AI InfrastructureFrameworks

Security Scan

90/100
12 checks · 11 passed · 1 finding
5/13/2026
Scanners:customsemgrepgitleakstrivy
SSRF Detection
Prompt Injection
Data Exfiltration
Dangerous Commands
Secret Detection
Obfuscation
External Fetches
Credential Access
Privilege Escalation
Secret Detection (Gitleaks)
Static Security Analysis
Dependency Vulnerabilities1

Findings (1)

highurllib3: Sensitive headers forwarded across origins in proxied low-level redirectstrivy
requirements.txt:0
50 files scanned from repository

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Compatibility

Python
TypeScript
Go
Ruby
Rust

Links

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