
Over five months, Masashi Hirose enhanced the mozilla/looker-spoke-default repository by building and refining analytics features in Looker using LookML and SQL. He delivered new cohort analytics, expanded Firefox.com data coverage, and introduced advanced event stream explores, enabling granular business insights and improved retention monitoring. His technical approach emphasized codebase hygiene, removing obsolete dashboards and models to reduce technical debt and streamline onboarding. Hirose’s work focused on data modeling, ETL, and dashboard development, resulting in a cleaner, more maintainable analytics surface. The depth of his contributions improved data accessibility, reliability, and scalability for business intelligence and product analytics teams.

October 2025: Delivered Cohort Analytics in Looker, including daily churn, retention measures, and organized cohort explores; added weekly_stats for active and cohort retention; reorganized data access with country joins; cleaned the data model by renaming glean_cohort_churn to cohort_daily_churn and adding glean_cohort views. This work improves monitoring, attribution, and decision making with a cleaner, scalable Looker model.
October 2025: Delivered Cohort Analytics in Looker, including daily churn, retention measures, and organized cohort explores; added weekly_stats for active and cohort retention; reorganized data access with country joins; cleaned the data model by renaming glean_cohort_churn to cohort_daily_churn and adding glean_cohort views. This work improves monitoring, attribution, and decision making with a cleaner, scalable Looker model.
August 2025 monthly summary for mozilla/looker-spoke-default focusing on delivering a cleaner, more capable analytics surface and reducing technical debt. Key feature work delivered a new Event Stream Explore with extras and an enhanced data model, while a broad deprecation/cleanup passed removed legacy components to streamline maintenance and align with current analytics goals. These changes improve explore capabilities for product teams, reduce surface area for future changes, and prepare the data model for upcoming features.
August 2025 monthly summary for mozilla/looker-spoke-default focusing on delivering a cleaner, more capable analytics surface and reducing technical debt. Key feature work delivered a new Event Stream Explore with extras and an enhanced data model, while a broad deprecation/cleanup passed removed legacy components to streamline maintenance and align with current analytics goals. These changes improve explore capabilities for product teams, reduce surface area for future changes, and prepare the data model for upcoming features.
July 2025 – mozilla/looker-spoke-default: Focused codebase cleanup by removing obsolete mobile forecast LookML files, updating the main model to reflect deletions, and deleting legacy dashboards. This reduces technical debt, eliminates stale artifacts, and improves maintainability, onboarding, and build stability. No major defects reported this month; cleanup mitigates risk by removing outdated forecasting components and clarifying the code surface.
July 2025 – mozilla/looker-spoke-default: Focused codebase cleanup by removing obsolete mobile forecast LookML files, updating the main model to reflect deletions, and deleting legacy dashboards. This reduces technical debt, eliminates stale artifacts, and improves maintainability, onboarding, and build stability. No major defects reported this month; cleanup mitigates risk by removing outdated forecasting components and clarifying the code surface.
June 2025 monthly summary for mozilla/looker-spoke-default: Delivered Firefox.com Looker analytics enhancements, expanding data coverage and enabling granular business insights without modifying existing models.
June 2025 monthly summary for mozilla/looker-spoke-default: Delivered Firefox.com Looker analytics enhancements, expanding data coverage and enabling granular business insights without modifying existing models.
February 2025 monthly work summary for repository mozilla/looker-spoke-default. Focused on codebase hygiene and removal of unused assets. No major bugs fixed this month. The primary delivery was removing the kpi_installs dashboards, explore, and view assets to streamline maintenance and reduce technical debt, improving long-term maintainability and onboarding for new contributors.
February 2025 monthly work summary for repository mozilla/looker-spoke-default. Focused on codebase hygiene and removal of unused assets. No major bugs fixed this month. The primary delivery was removing the kpi_installs dashboards, explore, and view assets to streamline maintenance and reduce technical debt, improving long-term maintainability and onboarding for new contributors.
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