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Christoph Hartmann

PROFILE

Christoph Hartmann

Chris contributed deeply to the mondoohq/cnquery and cnspec repositories, building cross-platform security, compliance, and inventory tooling. He engineered features such as SBOM catalogers for over a dozen ecosystems, CLI enhancements for report validation, and automated policy linting, using Go, Protocol Buffers, and YAML. Chris improved reliability by refactoring build systems, expanding architecture support, and integrating CI/CD quality gates. His work included developing provider frameworks, enhancing OS and package detection, and automating license compliance. By focusing on maintainable code, robust testing, and clear documentation, Chris delivered scalable solutions that strengthened supply chain security and streamlined developer workflows across diverse environments.

Overall Statistics

Feature vs Bugs

82%Features

Repository Contributions

139Total
Bugs
18
Commits
139
Features
83
Lines of code
108,909
Activity Months15

Work History

April 2026

42 Commits • 26 Features

Apr 1, 2026

April 2026 performance snapshot: delivered strong licensing/compliance automation, expanded cross-language SBOM cataloging, and reinforced reliability and release processes across Mondoo's provider ecosystem. Key outcomes include targeted features for license/copyright handling, broad SBOM coverage for 15+ ecosystems, substantial provider tooling improvements, and new cloud-provider support, all driving governance, supply-chain transparency, and faster, more reliable releases.

February 2026

1 Commits

Feb 1, 2026

February 2026 monthly summary for mondoohq/cnquery focusing on a critical maintenance item: aligning Protocol Buffers with protoc 6.33.2. The change ensures ongoing compatibility, stability, and downstream reliability by updating generated proto files and validating the build/test pipelines.

January 2026

19 Commits • 11 Features

Jan 1, 2026

Monthly performance summary for 2026-01 covering mondoohq/cnquery and mondoohq/cnspec. Focus areas included developer experience improvements, maintainability, reliability, and security coverage. Delivered major features, resolved reliability issues, and expanded cross-platform capabilities with CI quality gates.

December 2025

16 Commits • 11 Features

Dec 1, 2025

December 2025 delivered major security, reliability, and capability gains across mondoohq/cnspec and cnquery, with a clear focus on business value and maintainable software. Key features and stability improvements include GCP security hardening and compliance enhancements (Terraform + MQL policy updates, ensuring Cloud SQL instances are not publicly exposed, improved SSH key management and logging for auditability), and policy clarity upgrades to improve maintainability. The Cnspec testing framework was strengthened with integration tests, updated baseline to v12, and robust error handling across Kubernetes and Terraform, increasing test reliability and reducing regression risk. In cnquery, a new Ansible security/compliance provider was introduced, alongside inventory file support and enhanced resource discovery; additional provider updates (OS 11.4.74 and YARA runtime integration) broaden coverage and tooling resilience. CI/CD and testing stability were improved by pinning goreleaser to v2.5.1 and removing outdated AWS regions from tests, driving more predictable builds and faster feedback cycles.

November 2025

20 Commits • 9 Features

Nov 1, 2025

Month: 2025-11 — Consolidated improvements across mondoohq/cnspec and mondoohq/cnquery, reinforcing developer productivity, system reliability, and security. Delivered user-facing features, refined linting and package management workflows, expanded platform coverage, and fixed critical bugs. Highlights: - CLI SARIF Output Readability Enhancement (cnspec): Improved readability by formatting SARIF output with jq, reducing time to diagnose issues. (commit ed4f9282c2af9d57c096a9933cff4025535e349c) - Linting Framework Enhancements and Policy Updates (cnspec): Standardized terminology to 'rule', introduced constants for lint rule IDs, focused policy linting on errors, and changed YAML linter to warn on unknown fields to improve UX. (commits 9b3f7235..., fff098bf..., bb039b5c..., 1ad9535e...) - Node.js/npm package management enhancements (cnquery): Improved package.json handling, root path detection for unresolved packages, npm scripts, scoped package detection, and multi-path initialization for npm/resource management. (commits 335f9743..., ff3410d7..., 7cff2d60..., e6637fc1...) - macOS system information gathering resource (cnquery): Added capability to gather macOS system information, enriching system visibility. (commit b5df20e65bf4c350f5b24158b438b645870c725c) - tar file system bug fix (cnquery): Fixed Readdirnames and updated tests for Alpine image changes to restore correct directory name handling. (commit c9720fbb8427dc72be35a6e684f38eb186367c7d)

September 2025

4 Commits • 3 Features

Sep 1, 2025

September 2025 monthly summary: Delivered security-focused enhancements, code quality improvements, and new resource capabilities across three repositories (mondoohq/cnspec, mondoohq/terraform-provider-mondoo, mondoohq/docs). Implemented MCP Security Policy to enforce content security checks, upgraded linting to improve code quality, refreshed Go dependencies for stability, and introduced an AI Resource Pack for MQL with detection capabilities. These efforts reduce risk, improve maintainability, and enable more robust MCP deployments while expanding detection tooling and resources for developers.

July 2025

2 Commits • 1 Features

Jul 1, 2025

2025-07 monthly summary for mondoohq/cnquery focused on delivering CNQuery SBOM enhancements and CNQuery format support. Delivered protobom-integrated CNQuery SBOM generation with new flags to control inclusion of evidence and CPEs and an explicit user enablement flow. Extended the SBOM provider to support CNQuery SBOM format, including asset validation and SPDX parsing improvements to ensure SPDX version presence. Added shell compatibility for the CNQuery SBOM command to improve automation in CI/CD and scripting environments. Overall impact: improved governance and automation of SBOM workflows, increased reliability and interoperability with downstream tooling. Demonstrated skills in SBOM standards (SPDX), protobom integration, CLI UX, and CI/CD readiness.

June 2025

8 Commits • 5 Features

Jun 1, 2025

June 2025 monthly delivery focused on expanding platform targeting, broadening architecture support, and strengthening policy governance across CNSpec, CNSpec policies, and Installer. Key outcomes include enabling CLI-based platform ID overrides for precise scans, adding s390x build/deploy coverage, centralizing policy content with repository maintenance, archiving the legacy policies repository and migrating query packs to the main CNSpec repo, and enhancing CI reliability through linting improvements and fixes. These changes deliver business value by enabling targeted scans for diverse environments, expanding platform coverage on deployments, and reducing maintenance overhead while improving policy enforcement and developer experience.

May 2025

2 Commits • 2 Features

May 1, 2025

Month: 2025-05 — Focused on delivering two key features and improving code quality in mondoohq/cnspec. Key outcomes include a CLI-based CNSpec report comparison for validation, and a refactored linting system with policy bundle tooling and a dedicated policy/tooling package to improve maintainability and scalability.

April 2025

8 Commits • 6 Features

Apr 1, 2025

April 2025 (repo: mondoohq/cnquery) delivered cross-platform asset discovery enhancements, expanded OS detection, and SBOM/build metadata improvements, with targeted fixes that reduce noise and improve inventory accuracy. The work enhances software supply chain visibility, platform coverage, and remediation speed across multiple ecosystems including AIX, SUSE, macOS, and Microsoft 365 devices. Business impact: improved asset discovery accuracy, enhanced compliance visibility (SBOM/build metadata), and faster remediation workflows across heterogeneous environments. Technical emphasis on OS detection, IO Registry parsing, PURL generation, SBOM metadata, and cross-platform resource discovery.

March 2025

5 Commits • 2 Features

Mar 1, 2025

March 2025 CNSpec monthly summary focused on strengthening vulnerability detection, improving usability, and increasing maintainability. Key features delivered include a Vulnerability Scanner CLI and Configuration Improvements with a CLI refactor that hides the asset-name flag while preserving internal parsing, an updated Viper binding to include the output flag, and a reorganization of vulnerability MQL files into a dedicated core/vulnerabilities directory. Ingress-Nightmare Security Policy was added to detect vulnerable Ingress-Nightmare versions across Kubernetes clusters, including CVEs, affected versions, remediation steps, and enable/disable guidance for the admission controller. A bug fix for Ingress-nginx version detection in the 1.12.x range was implemented to ensure the lower bound is included, improving accuracy of vulnerability detection, and a minor typo in vulnerability titles within MQL was corrected to improve description clarity.

January 2025

3 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary highlighting key deliverables and outcomes across the Terraform provider and CNSpec workstreams. Emphasis on delivering business value through improved onboarding, accurate policy scoping, and robust configuration examples.

December 2024

4 Commits • 3 Features

Dec 1, 2024

December 2024 monthly summary for mondoohq/cnquery. Focused on delivering new capabilities, maintaining tooling health, and improving compliance. Key outcomes include: Nmap provider for cnquery enabling network scanning and host/port discovery; dependency updates across modules with berglas v2 migration and GCP provider refactor; protobuf/codegen alignment with the latest protoc; and Cloudflare provider header comments added to meet compliance requirements. No critical bugs fixed this month; main achievements deliver measurable business value through enhanced network visibility, maintainability, and compliance.

November 2024

3 Commits • 2 Features

Nov 1, 2024

CNQuery monthly summary for 2024-11: Delivered Windows 2025 on ARM via SSH OS detection with tests, expanded TypedDoc metadata (language, creation date, modification date, tags) to cnquery_explorer docs/UI, and fixed a regression by reverting provider flags loaded from environment variables to the original CLI/config-based retrieval. These changes broaden cross-platform discovery, improve documentation context, and stabilize configuration behavior.

October 2024

2 Commits • 1 Features

Oct 1, 2024

October 2024 performance summary: delivered core features and stability improvements across CNSpec and Installer, driving compatibility, reliability, and faster release cycles. CNSpec: Protobuf definitions updated with generated code upgrades (bump protoc-gen-go/protoc) plus minor internal state/reflection adjustments to preserve compatibility. Installer: CI/CD alignment by reverting arm64 MSI packaging and enforcing amd64-only Windows installers, reducing build complexity and CI failures. Overall impact: improved cross-repo reliability, streamlined packaging, and maintainable codegen/CI workflows. Technologies demonstrated: Protobuf tooling, code generation, CI/CD governance, Windows installer packaging, and cross-repo collaboration.

Activity

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Quality Metrics

Correctness93.6%
Maintainability87.6%
Architecture91.0%
Performance86.0%
AI Usage35.4%

Skills & Technologies

Programming Languages

GoHCLJSONJavaScriptMQLMakefileMarkdownPowerShellPrologRuby

Technical Skills

AI DevelopmentAI integrationAPI DevelopmentAPI IntegrationAPI developmentAPI integrationAWSAWS integrationAnsibleAzureBackend DevelopmentBuild AutomationBuild EngineeringBuild System ConfigurationCI/CD

Repositories Contributed To

6 repos

Overview of all repositories you've contributed to across your timeline

mondoohq/cnquery

Nov 2024 Apr 2026
9 Months active

Languages Used

GoPowerShellMarkdownYAMLprotobufXMLMakefileJSON

Technical Skills

CLI DevelopmentGo DevelopmentOperating System DetectionPowerShell ScriptingProtocol BuffersReverting Commits

mondoohq/cnspec

Oct 2024 Jan 2026
9 Months active

Languages Used

GoYAMLMQLHCLMakefileMarkdownmqlyaml

Technical Skills

Code GenerationProtobufPolicy as CodeCLI DevelopmentCode OrganizationConfiguration Management

mondoohq/terraform-provider-mondoo

Jan 2025 Apr 2026
3 Months active

Languages Used

HCLMarkdownGo

Technical Skills

DocumentationInfrastructure as CodeTechnical WritingTerraformDependency ManagementGo Modules

mondoohq/installer

Oct 2024 Jun 2025
2 Months active

Languages Used

PowerShellWiXYAMLShell

Technical Skills

Build AutomationCI/CDWindows InstallerBuild EngineeringCross-platform Development

mondoohq/cnspec-policies

Jun 2025 Jun 2025
1 Month active

Languages Used

Markdown

Technical Skills

DocumentationRepository Management

mondoohq/docs

Sep 2025 Sep 2025
1 Month active

Languages Used

Markdown

Technical Skills

DocumentationTechnical Writing