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@sebastienrousseau sebastienrousseau released this 11 Jan 14:13
v0.0.35
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Release v0.0.35 - 2026-01-11

Pain001: Industry-Leading Agent Profiles & Security Framework

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Overview

Pain001 is an open-source Python Library that you can use to create
ISO 20022-Compliant Payment Files directly from your CSV or SQLite
Data Files.

🎯 Release Focus

This release elevates Pain001 to industry-leading standards for automated maintenance and security governance. We've published three comprehensive agent profiles that define deterministic, scoped automation for code quality, security, and dependency management—aligned with enterprise best practices.

✨ Highlights

🤖 Industry-Leading Agent Profiles

Three comprehensive specifications for automated, deterministic maintenance:

python-quality.md (77 lines)

Lead Python Code Quality Maintainer enforcing:

  • mypy strict mode with complete type hints (parameters, returns, raises)
  • Testing excellence: 95%+ coverage (target 98%+), all branches tested
  • Code style standards: Ruff (79-char lines), Black, isort, pylint 10.0/10
  • Documentation standards: Module/function docstrings, Sphinx integration
  • Performance tracking: Cyclomatic complexity ≤7, benchmarking, profiling

python-security.md (122 lines)

Security Maintainer enforcing OWASP Top 10 prevention:

  • Input validation: Type, length, format, range checking for untrusted inputs
  • Secrets & PII protection: No hardcoded credentials, sanitized logging
  • Unsafe patterns: XXE prevention (defusedxml), SQL injection, deserialization, code injection, path traversal, command injection
  • Network security: Mandatory timeouts, TLS verification, rate limiting
  • Cryptographic standards: AES-256, SHA-256+, authenticated encryption
  • Audit & compliance: Threat modeling, secure-by-default design, incident response
  • CI/CD integration: make sec in pipelines, Dependabot, semantic-release

python-deps.md (191 lines)

Dependency Maintainer ensuring supply chain integrity:

  • Dependency evaluation: Necessity, maturity, quality, license, security checks
  • Version workflows: Patch (auto-merge), minor (full validation), major (review + migration)
  • Security priorities: 7-day critical, 30-day high, 60-day medium, 90-day low patches
  • Transitive auditing: poetry show --tree, malicious addition detection
  • Governance rules: One dep per commit, lock file reviews, pre-merge audit checklist
  • Communication: PR title format, changelog entries, team notifications

🔐 Enterprise-Grade Security Framework

Comprehensive guidelines for production-ready security:

OWASP Top 10 Prevention:
├── Input Validation      (allowlist not blacklist)
├── Secrets & PII         (environment variables, sanitized logging)
├── XXE Attacks          (defusedxml exclusively)
├── SQL Injection         (parameterized queries)
├── Deserialization      (json not pickle)
├── Code Injection       (no eval/exec on user input)
├── Path Traversal       (pathlib.Path.resolve().relative_to())
└── Command Injection    (subprocess shell=False)

Network Security:
├── Timeouts             (mandatory for all requests)
├── TLS Verification     (verify=True always)
├── Rate Limiting        (exponential backoff + circuit breaker)
└── Certificate Validation (custom CAs supported)

Cryptographic Standards:
├── Encryption           (AES-256 with authenticated encryption)
├── Hashing              (SHA-256+, bcrypt/argon2 for passwords)
├── Tokens               (secrets module not random)
└── Key Rotation         (audit trail maintained)

📦 Reproducible Builds & Supply Chain Integrity

Industry-standard dependency management:

Evaluation Framework:

  • Necessity: Can stdlib or existing deps solve this?
  • Maturity: Active maintainers? Recent commits?
  • Quality: Tests, type hints, documentation?
  • Size: Minimal, focused libraries preferred
  • License: Apache 2.0, MIT, BSD preferred
  • Security: Safety check, advisories review
  • Popularity: Battle-tested by community
  • Transitive: Audit full dependency tree

Version Update Workflows:

  • Patch: Auto-merge via Dependabot (tests only)
  • Minor: Full make check validation required
  • Major: Code review + migration guide + regression testing
  • Security CVE: Critical in 7 days, High in 30 days

Pre-Merge Checklist:

  • poetry lock synced with pyproject.toml
  • poetry check passes
  • Run make pr (minimum)
  • Run make check (if major/minor)
  • Run make sec (if security update)
  • Review poetry.lock git diff
  • Update CHANGELOG.md
  • No new type errors from upgraded deps
  • Test on Python 3.9+ (minimum)

📊 Quality Metrics

Test Coverage:              98.56% (173/173 tests passing)
Type Safety:                100% (mypy strict mode)
Linting Grade:              10.0/10 (pylint)
Security Vulnerabilities:   0 (bandit + safety)
Performance Baseline:       CSV: 1.5ms | XML: 14μs
Cyclomatic Complexity:      A-B rated (low complexity)

Agent Profiles:
├── python-quality.md      77 lines
├── python-security.md     122 lines
└── python-deps.md         191 lines

🚀 New Capabilities

Automated Quality Enforcement

Agent profiles now provide deterministic, verifiable standards for:

  • Code quality: Type hints, testing, coverage, documentation
  • Security: Input validation, secrets protection, OWASP compliance
  • Dependencies: Reproducible builds, security patching, transitive auditing

Supply Chain Security

  • Lock file auditing: Detect unexpected packages/versions
  • Transitive management: poetry show --tree analysis
  • Security CVE response: Tiered priority (critical 7d → low 90d)
  • Dependency bloat prevention: One dep per commit, justification required

Secure Development Workflow

  • Threat modeling before implementation
  • Secure-by-default with explicit opt-outs
  • Fail-secure error handling
  • Adversarial testing (boundary values, malicious input)

🔄 Breaking Changes

None. All changes are additive. Agent profiles are guidelines; existing workflows continue to function.

🛠 For Maintainers

To use agent profiles in your repository:

  1. Code Quality: Reference python-quality.md for PR review standards
  2. Security: Reference python-security.md for security scanning
  3. Dependencies: Reference python-deps.md for Dependabot/manual updates

Example CI/CD Integration:

# Fast PR gate (existing)
make pr          # ruff, black, mypy, pytest

# Security scanning (existing)
make sec         # bandit, safety, pip-licenses

# Comprehensive validation (existing)
make check       # lint, type, coverage, sec combined

📚 Documentation

  • Agent Profiles: .github/agents/{python-quality,python-security,python-deps}.md
  • Changelog: Full history in CHANGELOG.md
  • README: Quick start guide in README.md
  • API Docs: Auto-generated via Sphinx (make docs)

⚠️ Known Limitations

None identified. Agent profiles are recommendations; teams can adapt per their governance model.

🙏 Contributors

Sebastien Rousseau - Library design, enterprise standards, security framework

📝 License

Licensed under the Apache License, Version 2.0. See LICENSE-APACHE for details.

Release Date: January 11, 2026
Version: 0.0.35
Status: Stable, Production-Ready

For questions or feedback: GitHub Issues

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