ACGS-2 Core

Cryptographic AI compliance verification in one line of code.

What is ACGS-2?

ACGS-2 (Adaptive Constitutional Governance System) provides cryptographic proof of AI compliance, not just logs.

from acgs2_core import verify

result = verify("Your AI output here")

print(result.compliant)    # True
print(result.proof_hash)   # cdd01ef066bc6cf2a1b2c3d4...

One line of code. Provable compliance. Sub-millisecond latency.

Installation

pip install acgs2-core

Zero dependencies. Pure Python. Works everywhere.

Quick Start

Basic Verification

from acgs2_core import verify

# Verify AI output
result = verify("The weather today is sunny and 72°F.")

if result.compliant:
    print(f"✓ Compliant | Proof: {result.proof_hash[:16]}...")
else:
    for violation in result.violations:
        print(f"✗ {violation.rule_id}: {violation.description}")

Check for PII Leakage

from acgs2_core import verify

# This will detect SSN patterns
result = verify("Contact John at 123-45-6789 for more info.")

print(result.compliant)  # False
print(result.violations[0].rule_id)  # "no-ssn"
print(result.violations[0].severity)  # "critical"

Custom Policies

from acgs2_core import Validator, Policy, PolicyType

validator = Validator()

# Add custom policy
validator.add_policy(Policy(
    id="no-competitor-names",
    name="No Competitor Mentions",
    description="Prevent mentioning competitor names",
    policy_type=PolicyType.PATTERN,
    rule=r"\b(CompetitorA|CompetitorB)\b",
    severity="medium"
))

result = validator.verify("Our product is better than CompetitorA.")
print(result.compliant)  # False (or True in non-strict mode)

Strict Mode

from acgs2_core import Validator

# Strict mode: any violation = non-compliant
validator = Validator(strict_mode=True)

result = validator.verify("Call me at 555-1234")  # Phone number detected
print(result.compliant)  # False (medium severity, but strict mode)

Features

Feature	Description
Cryptographic Proofs	SHA-256 hashes anchored to constitutional hash
PII Detection	SSN, credit cards, emails, phone numbers
Custom Policies	Regex patterns or custom functions
Sub-ms Latency	Designed for real-time verification
Zero Dependencies	Pure Python, no bloat
Type Hints	Full typing support

Built-in Policies

Policy ID	Description	Severity
no-ssn	Social Security Numbers	critical
no-credit-card	Credit card numbers	critical
no-email-leak	Email addresses	high
no-phone	Phone numbers	medium
no-harmful-content	Harmful keywords	high

API Reference

verify(content, context=None, policies=None)

Quick verification using default validator.

result = verify("content to check")

Validator

Full-featured validator with customization.

validator = Validator(
    include_default_policies=True,
    strict_mode=False
)

VerificationResult

Result object with all verification details.

result.compliant           # bool
result.proof_hash          # str
result.constitutional_anchor  # str ("cdd01ef066bc6cf2")
result.timestamp           # datetime
result.latency_ms          # float
result.violations          # List[Violation]
result.metadata            # Dict

The Story Behind ACGS-2

This project was built from scratch over 2 years by a solo developer who started with zero coding experience.

622,000+ lines of code. 52 integrated systems. Sub-millisecond latency.

Read the full story →

Enterprise Version

Need more features?

• Blockchain anchoring (Ethereum, Solana, Arweave)
• Multi-agent verification (MACI framework)
• Real-time semantic analysis
• Compliance certifications (SOC2, HIPAA, EU AI Act)
• SLA & dedicated support

Contact us →

Contributing

Contributions welcome! See CONTRIBUTING.md

# Setup development environment
git clone https://github.com/acgs2/acgs2-core.git
cd acgs2-core
pip install -e ".[dev]"
pytest

License

MIT License - Use it however you want.

Links

• Documentation
• GitHub
• Discord Community
• Twitter @acgs2_ai

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Constitutional Hash: cdd01ef066bc6cf2

Built with obsession. Shared with hope.