theiagen/public_health_bioinformatics
Jan 2025 – Mar 2026
13 Months active
Languages Used
MarkdownWDLPythonShellWDlYAMLbashpython
Technical Skills
ContainerizationDocumentationWorkflow ManagementBioinformaticsBug FixingCI/CD
Zachary Konkel
PROFILE
Zachary Konkel
Zach Konkel developed and maintained advanced bioinformatics workflows in the theiagen/public_health_bioinformatics repository, focusing on genomic analysis, AMR detection, and data quality control. He engineered robust pipelines using WDL, Python, and Docker, integrating tools like Bracken, Kraken2, and Fastp to enhance read classification, QC, and taxonomic extraction for both Illumina and ONT data. Zach implemented automated testing frameworks, improved error handling, and streamlined metadata submission processes, ensuring reliable, reproducible results. His work addressed edge cases, optimized workflow resilience, and expanded support for viral and fungal genomics, demonstrating depth in workflow orchestration, containerization, and collaborative documentation practices throughout the project.
Overall Statistics
Feature vs Bugs
82%Features
Repository Contributions
47Total
Bugs
8
Commits
47
Features
36
Lines of code
25,463
Activity Months13
Your Network
14 peopleShared Repositories
14
Work History
March 2026
3 Commits • 3 Features
Mar 1, 2026March 2026 (2026-03) performance highlights for theiagen/public_health_bioinformatics: Key features delivered: - Bracken integration with Kraken2 tasks: added Bracken to Kraken2 workflows, enhanced read classification, and improved output handling; introduced k-mer inference features and updated workflow configurations and docs. Reflected progress across the bracken/kraken2 integration, including container updates and output propagation. - Metabuli standalone workflow with QC/Taxonomic extraction: launched a standalone Metabuli workflow with Fastp/Fastplong QC, optional taxon ID inputs for targeted read extraction, and support for ONT and Illumina data. - Automated testing initialization: set up automated testing scaffolding with input files for multiple workflows, update testing tables, and align workflow naming and configuration for future test runs. Major bugs fixed: - Stabilized Bracken outputs propagation and IO path consistency across Kraken2/Bracken and related workflows; addressed naming and data flow issues uncovered during integration. - Fixed testing data flow and input configurations to reduce flaky tests and improve reproducibility of end-to-end runs. Overall impact and accomplishments: - Strengthened end-to-end classification, QC, and taxonomic extraction pipelines, enabling faster, more reliable surveillance data processing and reporting. - Improved data quality and consistency through integrated QC steps and standardized outputs; created scalable foundations for future expansions (Metabuli, de-duplication, reporting to Freyja workflows). - Enhanced reproducibility and collaboration through updated docs, versioning, and automated testing readiness. Technologies/skills demonstrated: - Bracken/Kraken2 integration, Metabuli workflow orchestration, Fastp/Fastplong QC integration, and minwdl workflow management. - Container updates, documentation excellence, and automated testing practices. - Cross-team collaboration and surface-level traceability through commit history and co-authored changes.
3 Commits • 3 Features
Mar 1, 2026March 2026 (2026-03) performance highlights for theiagen/public_health_bioinformatics: Key features delivered: - Bracken integration with Kraken2 tasks: added Bracken to Kraken2 workflows, enhanced read classification, and improved output handling; introduced k-mer inference features and updated workflow configurations and docs. Reflected progress across the bracken/kraken2 integration, including container updates and output propagation. - Metabuli standalone workflow with QC/Taxonomic extraction: launched a standalone Metabuli workflow with Fastp/Fastplong QC, optional taxon ID inputs for targeted read extraction, and support for ONT and Illumina data. - Automated testing initialization: set up automated testing scaffolding with input files for multiple workflows, update testing tables, and align workflow naming and configuration for future test runs. Major bugs fixed: - Stabilized Bracken outputs propagation and IO path consistency across Kraken2/Bracken and related workflows; addressed naming and data flow issues uncovered during integration. - Fixed testing data flow and input configurations to reduce flaky tests and improve reproducibility of end-to-end runs. Overall impact and accomplishments: - Strengthened end-to-end classification, QC, and taxonomic extraction pipelines, enabling faster, more reliable surveillance data processing and reporting. - Improved data quality and consistency through integrated QC steps and standardized outputs; created scalable foundations for future expansions (Metabuli, de-duplication, reporting to Freyja workflows). - Enhanced reproducibility and collaboration through updated docs, versioning, and automated testing readiness. Technologies/skills demonstrated: - Bracken/Kraken2 integration, Metabuli workflow orchestration, Fastp/Fastplong QC integration, and minwdl workflow management. - Container updates, documentation excellence, and automated testing practices. - Cross-team collaboration and surface-level traceability through commit history and co-authored changes.
March 2026
January 2026
9 Commits • 8 Features
Jan 1, 2026January 2026 monthly summary for the repository: theiagen/public_health_bioinformatics. This period focused on delivering core workflow improvements for TheiaViral and related QC/data pipelines, stabilizing workflows with resilience enhancements, and improving reporting and data integrity to drive faster, more reliable decision making for downstream projects and customers.
January 2026
9 Commits • 8 Features
Jan 1, 2026January 2026 monthly summary for the repository: theiagen/public_health_bioinformatics. This period focused on delivering core workflow improvements for TheiaViral and related QC/data pipelines, stabilizing workflows with resilience enhancements, and improving reporting and data integrity to drive faster, more reliable decision making for downstream projects and customers.
December 2025
4 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for theiagen/public_health_bioinformatics: Delivered high-impact fixes and workflow enhancements that improve reliability, accuracy of metrics, and developer/documentation support. Key outcomes include reliable resource access in Phylocompare, standardized defaults and expanded workflow docs for TheiaViral, and corrected read-mapping statistics with robust tests.
4 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for theiagen/public_health_bioinformatics: Delivered high-impact fixes and workflow enhancements that improve reliability, accuracy of metrics, and developer/documentation support. Key outcomes include reliable resource access in Phylocompare, standardized defaults and expanded workflow docs for TheiaViral, and corrected read-mapping statistics with robust tests.
December 2025
November 2025
5 Commits • 4 Features
Nov 1, 2025November 2025: Delivered targeted feature removals, UX refinements, robustness improvements, and enhanced phylogenetic tooling, plus a static reference database integration. These actions reduce maintenance burden, improve workflow reliability, and enable more flexible, scalable analysis pipelines.
November 2025
5 Commits • 4 Features
Nov 1, 2025November 2025: Delivered targeted feature removals, UX refinements, robustness improvements, and enhanced phylogenetic tooling, plus a static reference database integration. These actions reduce maintenance burden, improve workflow reliability, and enable more flexible, scalable analysis pipelines.
October 2025
2 Commits • 2 Features
Oct 1, 2025In 2025-10, two high-impact features were delivered in the theiagen/public_health_bioinformatics project, advancing AMR detection and phylogenetic analysis within TheiaEuk workflows. The ChroQueTas AMR detection integration now identifies AMR mutations and associated fungicide resistance by leveraging FungAMR, and is available as a standalone workflow and integrated into TheiaEuk pipelines for Illumina and ONT data. The SNP_sites task was added to the Core_Gene_SNP workflow to extract polymorphic sites from alignments, with documentation and workflow definitions updated to improve phylogenetic trees and SNP distance matrices. These changes improve surveillance capabilities, shorten analysis cycles, and provide end-to-end AMR and phylogenetic insights for public health decisions.
2 Commits • 2 Features
Oct 1, 2025In 2025-10, two high-impact features were delivered in the theiagen/public_health_bioinformatics project, advancing AMR detection and phylogenetic analysis within TheiaEuk workflows. The ChroQueTas AMR detection integration now identifies AMR mutations and associated fungicide resistance by leveraging FungAMR, and is available as a standalone workflow and integrated into TheiaEuk pipelines for Illumina and ONT data. The SNP_sites task was added to the Core_Gene_SNP workflow to extract polymorphic sites from alignments, with documentation and workflow definitions updated to improve phylogenetic trees and SNP distance matrices. These changes improve surveillance capabilities, shorten analysis cycles, and provide end-to-end AMR and phylogenetic insights for public health decisions.
October 2025
August 2025
5 Commits • 5 Features
Aug 1, 2025Month 2025-08: Key features delivered, major fixes, and business impact across theiagen/public_health_bioinformatics. The contributions expand visualization capabilities, broaden viral genomic characterization, extend clade typing support, standardize workflow naming, and improve documentation—driving reproducibility, faster analytics, and clearer deployment of phylogenetics and genomics workflows.
August 2025
5 Commits • 5 Features
Aug 1, 2025Month 2025-08: Key features delivered, major fixes, and business impact across theiagen/public_health_bioinformatics. The contributions expand visualization capabilities, broaden viral genomic characterization, extend clade typing support, standardize workflow naming, and improve documentation—driving reproducibility, faster analytics, and clearer deployment of phylogenetics and genomics workflows.
July 2025
3 Commits • 3 Features
Jul 1, 2025July 2025: Delivered key features to enable scalable, production-ready genome analysis workflows, enhanced data submission reliability, and introduced formal phylogenetic validation. No major bug-fixes were reported this month; work focused on feature delivery, tooling updates, and documentation to support maintainability and compliance.
3 Commits • 3 Features
Jul 1, 2025July 2025: Delivered key features to enable scalable, production-ready genome analysis workflows, enhanced data submission reliability, and introduced formal phylogenetic validation. No major bug-fixes were reported this month; work focused on feature delivery, tooling updates, and documentation to support maintainability and compliance.
July 2025
June 2025
7 Commits • 3 Features
Jun 1, 2025June 2025: Delivered flexible input capabilities and robust pipelines in theiagen/public_health_bioinformatics, expanding user-defined data inputs, improving submission reliability, and launching a comprehensive TheiaViral workflow suite with dynamic references and consensus assembly; plus test data and reference synchronization to stabilize CI and documentation.
June 2025
7 Commits • 3 Features
Jun 1, 2025June 2025: Delivered flexible input capabilities and robust pipelines in theiagen/public_health_bioinformatics, expanding user-defined data inputs, improving submission reliability, and launching a comprehensive TheiaViral workflow suite with dynamic references and consensus assembly; plus test data and reference synchronization to stabilize CI and documentation.
May 2025
1 Commits
May 1, 2025May 2025 monthly summary for theiagen/public_health_bioinformatics: Focused on reliability and data integrity for the MUMmer ANI workflow. Delivered a targeted bug fix to gracefully handle edge cases where ANI results are non-informative (all zeros) or contain only a header, preventing misinterpretation and downstream errors. The change improves user-facing output when genetic divergence is high and reduces confusion in reported metrics.
1 Commits
May 1, 2025May 2025 monthly summary for theiagen/public_health_bioinformatics: Focused on reliability and data integrity for the MUMmer ANI workflow. Delivered a targeted bug fix to gracefully handle edge cases where ANI results are non-informative (all zeros) or contain only a header, preventing misinterpretation and downstream errors. The change improves user-facing output when genetic divergence is high and reduces confusion in reported metrics.
May 2025
April 2025
2 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary focused on stabilizing and enriching the Theiaprok and MLST pipelines to boost data processing speed, output availability, and reliability for genomic characterization. Delivered workflow enhancements, updated MD5 checksums, and expanded output sets, plus a Docker container upgrade to improve bug fixes and performance. These changes reduce downstream rework and improve decision-grade data delivery for downstream analytics.
April 2025
2 Commits • 2 Features
Apr 1, 2025April 2025 monthly summary focused on stabilizing and enriching the Theiaprok and MLST pipelines to boost data processing speed, output availability, and reliability for genomic characterization. Delivered workflow enhancements, updated MD5 checksums, and expanded output sets, plus a Docker container upgrade to improve bug fixes and performance. These changes reduce downstream rework and improve decision-grade data delivery for downstream analytics.
March 2025
2 Commits • 2 Features
Mar 1, 2025March 2025: Delivered targeted, business-value-driven enhancements in theiagen/public_health_bioinformatics, focusing on documentation for TheiaCoV custom organisms and metadata preparation for NCBI/GISAID submissions. The work strengthens user guidance for non-default viruses and enriches submission-ready metadata, while aligning with Docker image and Terra workflow improvements.
2 Commits • 2 Features
Mar 1, 2025March 2025: Delivered targeted, business-value-driven enhancements in theiagen/public_health_bioinformatics, focusing on documentation for TheiaCoV custom organisms and metadata preparation for NCBI/GISAID submissions. The work strengthens user guidance for non-default viruses and enriches submission-ready metadata, while aligning with Docker image and Terra workflow improvements.
March 2025
February 2025
3 Commits • 2 Features
Feb 1, 2025February 2025: Delivered key enhancements to the read screening workflow and cleaned up workflow outputs, delivering measurable improvements in QC coverage, data handling, and maintainability. Achievements include a feature-rich Read Screening Process Enhancement, a workflow housekeeping update with MD5 checksum alignment, and a targeted bug fix to correct a variable reference in the read screen workflow. These changes reinforce data quality, reliability of screening results, and downstream analytics readiness.
February 2025
3 Commits • 2 Features
Feb 1, 2025February 2025: Delivered key enhancements to the read screening workflow and cleaned up workflow outputs, delivering measurable improvements in QC coverage, data handling, and maintainability. Achievements include a feature-rich Read Screening Process Enhancement, a workflow housekeeping update with MD5 checksum alignment, and a targeted bug fix to correct a variable reference in the read screen workflow. These changes reinforce data quality, reliability of screening results, and downstream analytics readiness.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly work summary for theiagen/public_health_bioinformatics focusing on upgrading RASUSA to 2.1.0 and strengthening reliability across the pipeline. Delivered the RASUSA Tool Version 2.1.0 upgrade with Docker image and CLI updates, refined handling of coverage/genome size when a fraction of reads is specified, and hard error enforcement. Documentation across workflow files was updated to reflect the new version. No separate critical bugs were reported; reliability and clarity improvements are reflected in the upgrade.
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly work summary for theiagen/public_health_bioinformatics focusing on upgrading RASUSA to 2.1.0 and strengthening reliability across the pipeline. Delivered the RASUSA Tool Version 2.1.0 upgrade with Docker image and CLI updates, refined handling of coverage/genome size when a fraction of reads is specified, and hard error enforcement. Documentation across workflow files was updated to reflect the new version. No separate critical bugs were reported; reliability and clarity improvements are reflected in the upgrade.
January 2025
Activity
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Quality Metrics
Correctness86.6%
Maintainability84.4%
Architecture85.8%
Performance79.2%
AI Usage27.6%
Skills & Technologies
Programming Languages
JSONMarkdownNonePythonRShellWDLWDlYAMLbash
Technical Skills
BioinformaticsBug FixingCI/CDContainerizationData AnalysisData ProcessingData SubmissionData VisualizationDevOpsDockerDocumentationFungal AMR DetectionGenomic AnalysisGenomicsNextflow
Repositories Contributed To
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