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Tanner Stirrat

PROFILE

Tanner Stirrat

Tom Stirrat engineered modular schema tooling, robust API enhancements, and comprehensive documentation across the authzed/spicedb and authzed/docs repositories. He introduced a composable schema system with import syntax and partial definitions, improving maintainability and error handling for complex authorization models. Using Go and TypeScript, Tom refactored compiler and parser logic, enforced schema validation, and integrated advanced features like expiration traits and AWS IAM credential observability. He streamlined CI/CD pipelines, upgraded dependencies, and standardized code quality with linting and formatting. His work also expanded multi-language documentation, clarified migration and deployment processes, and strengthened test coverage, resulting in more reliable, developer-friendly systems.

Overall Statistics

Feature vs Bugs

78%Features

Repository Contributions

69Total
Bugs
8
Commits
69
Features
28
Lines of code
9,675
Activity Months12

Work History

October 2025

8 Commits • 1 Features

Oct 1, 2025

Month: 2025-10 — Authzed/spicedb delivered targeted reliability and maintainability improvements with business impact on CI stability and developer velocity. Key outcomes include a data race fix in trailer tests ensuring deterministic test runs and traceable trailers, and a comprehensive code quality initiative across the repository that standardized YAML formatting with Prettier, tightened lint rules, and improved test hygiene. These changes reduce technical debt, accelerate onboarding, and strengthen confidence in future changes.

September 2025

2 Commits • 1 Features

Sep 1, 2025

Monthly summary for 2025-09 focusing on business value and technical achievements across the authzed/docs and authzed/spicedb repositories.

August 2025

1 Commits

Aug 1, 2025

In August 2025, authzed/spicedb progressed on improving reliability and regression protection through targeted testing around schema modifications. A dedicated test was added to validate schema write operations when removing relations in a real-schema scenario, surfacing potential edge cases early and guiding future fixes.

June 2025

3 Commits • 3 Features

Jun 1, 2025

June 2025 monthly summary: Delivered targeted framework upgrades, API/docs enhancements, and refined deployment documentation across authzed/docs and codefresh-io/argo-cd. Focused on reliability, onboarding, and developer productivity with concrete, business-value outcomes. No major user-facing bugs introduced; emphasis on documentation quality and maintainability.

May 2025

2 Commits • 1 Features

May 1, 2025

Month: 2025-05 — Focused on improving documentation quality and navigability in the authzed/docs repository. Delivered one bug fix and one major docs refactor, reinforcing developer onboarding and reference accuracy.

April 2025

5 Commits • 5 Features

Apr 1, 2025

April 2025 monthly summary for Authzed projects: Key features delivered across spicedb and docs, two major bug fixes, and clear business impact from improved reliability and maintainability. Highlights include CI/CD tooling upgrades with golangci-lint v2 and refreshed Go module dependencies, CertManager logging enhancements using zerologr for structured observability, and a modular refactor of validation file parsing. Documentation alignment for Debian packaging ensures consistent installation guidance, alongside a dependency lockfile update (sharp) to improve compatibility and stability. Outcome: faster feedback in CI, more robust deployments, easier maintenance, and stronger packaging/documentation consistency. Technologies demonstrated: Go modules, linting pipelines, structured logging, modular architecture, dependency management, and packaging automation.

March 2025

3 Commits • 2 Features

Mar 1, 2025

Monthly performance summary for 2025-03 focusing on delivering business-value through correctness, stability, and documentation clarity. Delivered key features and fixes across SpiceDB and documentation, with measurable impact on build reliability and developer onboarding.

February 2025

6 Commits • 3 Features

Feb 1, 2025

February 2025: Delivered robust documentation and feature enhancements across authzed/docs and authzed/spicedb, with a clear emphasis on composable schemas, migration safety, and expiration capabilities. Key features delivered include: (1) Composable Schemas System documentation in authzed/docs, detailing modular schema definitions, import syntax, partial declarations and references, and breaking changes, with guidance tied to the lexer and reserved keywords (commits a76511c9, 5b8d65dd, ccda1788). In addition, migration-related notes were added to help teams manage compatibility and overrides (commit e0a43b9a). (2) Migration Compatibility Documentation and Override guidance, documenting startup checks for migration compatibility and how to override mismatches with a CLI flag (commit e0a43b9a51589cf7aba4d8ac8062dbce4291a625). (3) Expiration support in the composable schema DSL for authzed/spicedb, including parsing of use expiration directives, recognizing the expiration trait in type references, and compiler support with error handling for misuse (commits 726aac49203db9e2d274e0a2dd9e9f31471ec584, a70839748cf3d2a19a44519253ffbe03f567e3c1). These changes enable expiration attributes on relations and enforce explicit enabling of the trait. Overall, this work strengthens the developer experience through comprehensive, cross-repo documentation, improves migration safety, and enables advanced schema modeling capabilities with expiration semantics. It demonstrates proficiency in documentation discipline, DSL parsing, compiler integration, CLI tooling, and cross-team collaboration to deliver coherent product improvements.

January 2025

8 Commits • 3 Features

Jan 1, 2025

January 2025 monthly summary focusing on delivering user-facing documentation, robust modular schema tooling, and improved observability for credentials. The work across authzed/docs and authzed/spicedb provides clearer onboarding, more reliable imports, and enhanced tracing, driving faster integration and reduced support overhead.

December 2024

2 Commits • 2 Features

Dec 1, 2024

Month: 2024-12 Key features delivered: - authzed/spicedb: CI/CD Pipeline Cleanup. Removed the unused Windows release workflow from GitHub Actions, streamlining CI/CD, reducing redundant jobs, and lowering maintenance overhead. (Commit: 2278cf56b9165b4f8031151fd52b5185cd1c698f) - authzed/docs: Thumper Load Generation Tool Documentation Expansion. Expanded user-facing docs to cover overview, scripting, configuration, and monitoring guidance to accelerate adoption and reduce troubleshooting time. (Commit: 9a8801cad280f1a6158d26e7c1aaf4d0351eb308) Major bugs fixed: - None reported this month. Overall impact and accomplishments: - Streamlined CI/CD processes in spicedb, leading to faster feedback cycles and reduced maintenance. - Improved onboarding and operational usability for Thumper via expanded docs, enabling faster adoption and fewer support queries. - Demonstrated disciplined cross-repo collaboration with targeted cleanup and documentation work. Technologies/skills demonstrated: - CI/CD optimization (GitHub Actions), workflow maintenance, and build pipeline simplification. - Technical writing and user-focused documentation expansion. - Cross-repo coordination and clear, commit-tracked changes.

November 2024

11 Commits • 2 Features

Nov 1, 2024

November 2024 (2024-11) performance summary for authzed/spicedb and authzed/docs. This period focused on delivering reliability in schema handling, expanding developer-oriented documentation, and improving maintainability with minor quality improvements. Key business value centers on reducing schema import risk, strengthening cache correctness, and accelerating adoption through comprehensive multi-language docs.

October 2024

18 Commits • 5 Features

Oct 1, 2024

October 2024 delivered substantial DSL and repo maintenance work in authzed/spicedb, with a clear focus on improving modular policy authoring, policy reusability, and maintainability, while strengthening testing and code quality.

Activity

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Quality Metrics

Correctness93.0%
Maintainability92.2%
Architecture88.0%
Performance86.2%
AI Usage21.8%

Skills & Technologies

Programming Languages

C#GoJavaScriptMDXMarkdownPythonShellTypeScriptYAMLZed

Technical Skills

API DesignAPI DevelopmentAPI SecurityAPI UsageAST ManipulationAuthenticationBackend DevelopmentBug FixingCI/CDCachingCode ClarityCode DocumentationCode ExamplesCode FormattingCode Linting

Repositories Contributed To

3 repos

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

authzed/spicedb

Oct 2024 Oct 2025
10 Months active

Languages Used

GoZedYAMLgoyaml

Technical Skills

API DesignAPI DevelopmentBackend DevelopmentCode ClarityCode FormattingCode Organization

authzed/docs

Nov 2024 Sep 2025
9 Months active

Languages Used

C#MarkdownPythongRPCMDXYAMLJavaScriptTypeScript

Technical Skills

API UsageCode ExamplesDocumentationgRPCSchema DesignTechnical Writing

codefresh-io/argo-cd

Jun 2025 Jun 2025
1 Month active

Languages Used

Markdown

Technical Skills

Documentation

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