promptfoo/promptfoo
Oct 2024 – Oct 2025
13 Months active
Languages Used
TypeScriptJavaScriptMarkdownN/AYAMLCSSSQLShell
Technical Skills
ConfigurationConstants ManagementAI Prompt EngineeringAPI DevelopmentAPI IntegrationBackend Development
sklein12
PROFILE
Sklein12
Steve contributed to the promptfoo/promptfoo repository by engineering robust evaluation pipelines, cloud-driven configuration management, and advanced red-team automation. He implemented features such as JSON and CSV import/export for evaluation data, risk scoring, and multi-phase red-team agents like Simba, using TypeScript and React for both backend and frontend development. Steve’s work included optimizing memory usage, enhancing telemetry and logging for observability, and integrating cloud services for scalable configuration and sharing. By refactoring core data structures and improving error handling, he delivered reliable, maintainable systems that support secure, large-scale evaluation workflows and streamlined developer and user experiences across the platform.
Overall Statistics
Feature vs Bugs
64%Features
Repository Contributions
238Total
Bugs
54
Commits
238
Features
94
Lines of code
56,317
Activity Months13
Your Network
98 peopleSame Organization
@promptfoo.dev3
Work History
October 2025
18 Commits • 13 Features
Oct 1, 2025October 2025 (repo: promptfoo/promptfoo) delivered meaningful business value through data portability, observability, and security testing enhancements. Key outcomes include seamless JSON evaluation imports, complete evaluation exports, clearer telemetry context in CI environments, and an expanded red-team capability with Simba. The month also advanced release readiness with version bump 0.119.0 and improved logging/documentation, setting the stage for scalable analytics and robust debugging.
18 Commits • 13 Features
Oct 1, 2025October 2025 (repo: promptfoo/promptfoo) delivered meaningful business value through data portability, observability, and security testing enhancements. Key outcomes include seamless JSON evaluation imports, complete evaluation exports, clearer telemetry context in CI environments, and an expanded red-team capability with Simba. The month also advanced release readiness with version bump 0.119.0 and improved logging/documentation, setting the stage for scalable analytics and robust debugging.
October 2025
September 2025
23 Commits • 10 Features
Sep 1, 2025September 2025 (2025-09) delivered core safety, observability, and cloud-sharing enhancements for promptfoo/promptfoo. Key features include auto-share on cloud connection, risk scoring, and red-team safeguards; request logging with persistent debug logs; and improved sharing controls that respect Config/CLI defaults. Several high-impact bug fixes improved reliability (CLI hang, token tracking, fetch usage) and security/privacy (log sanitization).
September 2025
23 Commits • 10 Features
Sep 1, 2025September 2025 (2025-09) delivered core safety, observability, and cloud-sharing enhancements for promptfoo/promptfoo. Key features include auto-share on cloud connection, risk scoring, and red-team safeguards; request logging with persistent debug logs; and improved sharing controls that respect Config/CLI defaults. Several high-impact bug fixes improved reliability (CLI hang, token tracking, fetch usage) and security/privacy (log sanitization).
August 2025
5 Commits • 2 Features
Aug 1, 2025Month: 2025-08 — concise monthly summary focusing on key development deliverables, business value, and technical achievements across the promptfoo/promptfoo repo. Highlights include UX-driven enhancements for red-team configuration, JSON output reliability for the OpenAI provider, improved sharing stability for large data transfers, and repository hygiene improvements to prevent leakage of local LLM tool configurations. Overall, these changes enhance testing quality, data exchange reliability, and developer productivity.
5 Commits • 2 Features
Aug 1, 2025Month: 2025-08 — concise monthly summary focusing on key development deliverables, business value, and technical achievements across the promptfoo/promptfoo repo. Highlights include UX-driven enhancements for red-team configuration, JSON output reliability for the OpenAI provider, improved sharing stability for large data transfers, and repository hygiene improvements to prevent leakage of local LLM tool configurations. Overall, these changes enhance testing quality, data exchange reliability, and developer productivity.
August 2025
July 2025
23 Commits • 6 Features
Jul 1, 2025July 2025 performance summary for promptfoo/promptfoo. Delivered telemetry and MCP UX enhancements, hardened the MCP server/evaluation pipeline, and maintained release readiness with versioning and typings. Expanded developer tooling and documentation while stabilizing UI/UX and build reliability. The month emphasized reliability, visibility, and developer efficiency, driving faster value for customers and internal stakeholders.
July 2025
23 Commits • 6 Features
Jul 1, 2025July 2025 performance summary for promptfoo/promptfoo. Delivered telemetry and MCP UX enhancements, hardened the MCP server/evaluation pipeline, and maintained release readiness with versioning and typings. Expanded developer tooling and documentation while stabilizing UI/UX and build reliability. The month emphasized reliability, visibility, and developer efficiency, driving faster value for customers and internal stakeholders.
June 2025
20 Commits • 10 Features
Jun 1, 2025June 2025 monthly summary for promptfoo/promptfoo: Delivered robust evaluation pipeline improvements, enhanced reporting, and stronger developer experience (DevEx) through thoughtful refactors, tooling, and analytics enhancements. Key outcomes include a safer, type-safe evaluation variable handling, a CSS-driven PDF export for reports, and a centralized GoatProvider config to improve persistence and parameter usage. Multiple targeted bug fixes hardened the platform (session continuity for multi-turn strategies, backfilled evaluation vars, and shareable evaluation URLs). Telemetry and real-time results UX were improved for faster feedback and reliable analytics. Release metadata updates ensure accurate documentation and versioning across releases. Business value: increased reliability, safer data flows, streamlined reporting, and clearer release documentation, enabling faster decision-making and adoption by customers and internal teams.
20 Commits • 10 Features
Jun 1, 2025June 2025 monthly summary for promptfoo/promptfoo: Delivered robust evaluation pipeline improvements, enhanced reporting, and stronger developer experience (DevEx) through thoughtful refactors, tooling, and analytics enhancements. Key outcomes include a safer, type-safe evaluation variable handling, a CSS-driven PDF export for reports, and a centralized GoatProvider config to improve persistence and parameter usage. Multiple targeted bug fixes hardened the platform (session continuity for multi-turn strategies, backfilled evaluation vars, and shareable evaluation URLs). Telemetry and real-time results UX were improved for faster feedback and reliable analytics. Release metadata updates ensure accurate documentation and versioning across releases. Business value: increased reliability, safer data flows, streamlined reporting, and clearer release documentation, enabling faster decision-making and adoption by customers and internal teams.
June 2025
May 2025
44 Commits • 15 Features
May 1, 2025May 2025: Delivered cloud-centric config retrieval, UX-improving data handling, stronger error handling, and ongoing release hygiene for business stability. The month focused on unifying configuration access, enhancing discovery and results workflows, and tightening reliability and privacy controls, underpinned by disciplined version management.
May 2025
44 Commits • 15 Features
May 1, 2025May 2025: Delivered cloud-centric config retrieval, UX-improving data handling, stronger error handling, and ongoing release hygiene for business stability. The month focused on unifying configuration access, enhancing discovery and results workflows, and tightening reliability and privacy controls, underpinned by disciplined version management.
April 2025
11 Commits • 6 Features
Apr 1, 2025April 2025 focused on delivering cloud onboarding improvements, reliability enhancements, security visibility, and enhanced observability for promptfoo/promptfoo. Key outcomes include a cloud access and sign-in overhaul with updated CLI/UI/links for the cloud domain migration; reliability improvements to sharing with robust error handling and optimized chunking for large results; security visibility enhancements with Attack Success Rate (ASR) terminology and a new vulnerability CSV export; usability enhancements to the prompt extraction plugin by making the systemPrompt config optional; analytics and verification improvements via Email Verification analytics and a comprehensive telemetry overhaul using a queue-based model, telemetry.record(), identify, and PostHog integration across endpoints and environments; and a release-readiness version bump (0.112.1). These changes collectively improve onboarding, reliability, security visibility, data-driven insights, and release discipline.
11 Commits • 6 Features
Apr 1, 2025April 2025 focused on delivering cloud onboarding improvements, reliability enhancements, security visibility, and enhanced observability for promptfoo/promptfoo. Key outcomes include a cloud access and sign-in overhaul with updated CLI/UI/links for the cloud domain migration; reliability improvements to sharing with robust error handling and optimized chunking for large results; security visibility enhancements with Attack Success Rate (ASR) terminology and a new vulnerability CSV export; usability enhancements to the prompt extraction plugin by making the systemPrompt config optional; analytics and verification improvements via Email Verification analytics and a comprehensive telemetry overhaul using a queue-based model, telemetry.record(), identify, and PostHog integration across endpoints and environments; and a release-readiness version bump (0.112.1). These changes collectively improve onboarding, reliability, security visibility, data-driven insights, and release discipline.
April 2025
March 2025
4 Commits • 1 Features
Mar 1, 2025Monthly summary for 2025-03: Implemented cloud-based API provider configuration loading for promptfoo/promptfoo, enabling configuration fetches from a cloud service and support for advanced cloud-driven redteam configurations. Standardized cloud provider prefixes and added extensive logging for cloud config loading to improve observability. All changes are production-ready and pave the way for scalable, cloud-native config management.
March 2025
4 Commits • 1 Features
Mar 1, 2025Monthly summary for 2025-03: Implemented cloud-based API provider configuration loading for promptfoo/promptfoo, enabling configuration fetches from a cloud service and support for advanced cloud-driven redteam configurations. Standardized cloud provider prefixes and added extensive logging for cloud config loading to improve observability. All changes are production-ready and pave the way for scalable, cloud-native config management.
February 2025
17 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for promptfoo/promptfoo focusing on engineering velocity, red-teaming capabilities, and provider reliability. Delivered notable features and stability improvements across development tooling, red-team framework, and HTTP/provider UX.
17 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for promptfoo/promptfoo focusing on engineering velocity, red-teaming capabilities, and provider reliability. Delivered notable features and stability improvements across development tooling, red-team framework, and HTTP/provider UX.
February 2025
January 2025
21 Commits • 12 Features
Jan 1, 2025January 2025 focused on strengthening red-team tooling, reliability, and observability for promptfoo/promptfoo. Delivered cloud-ready redteam execution features, type-safe provider test responses, and a migration toward a stateful architecture with enhanced session handling, UI parsing, and data sharing between components. Implemented analytics for redteam activities and ongoing maintenance/refactor to improve maintainability and developer experience, while tightening error handling and reliability through timeout tweaks and chunked result sharing.
January 2025
21 Commits • 12 Features
Jan 1, 2025January 2025 focused on strengthening red-team tooling, reliability, and observability for promptfoo/promptfoo. Delivered cloud-ready redteam execution features, type-safe provider test responses, and a migration toward a stateful architecture with enhanced session handling, UI parsing, and data sharing between components. Implemented analytics for redteam activities and ongoing maintenance/refactor to improve maintainability and developer experience, while tightening error handling and reliability through timeout tweaks and chunked result sharing.
December 2024
33 Commits • 14 Features
Dec 1, 2024December 2024 focused on delivering a robust Redteam workflow experience in promptfoo, expanding multilingual test coverage, and hardening cloud-enabled operations. Key UI/UX and provider-configuration improvements reduced setup time and configuration errors, while reliability and observability were enhanced through resilient integrations, safer fallbacks, and clearer state management. The release culminated in a version bump to 0.100.5, documentation updates, and broader test coverage, enabling faster business value and safer, scalable Redteam workflows.
33 Commits • 14 Features
Dec 1, 2024December 2024 focused on delivering a robust Redteam workflow experience in promptfoo, expanding multilingual test coverage, and hardening cloud-enabled operations. Key UI/UX and provider-configuration improvements reduced setup time and configuration errors, while reliability and observability were enhanced through resilient integrations, safer fallbacks, and clearer state management. The release culminated in a version bump to 0.100.5, documentation updates, and broader test coverage, enabling faster business value and safer, scalable Redteam workflows.
December 2024
November 2024
18 Commits • 2 Features
Nov 1, 2024Month: 2024-11 Concise monthly summary for promptfoo/promptfoo focusing on delivering business value and technical excellence. Key outcomes: - Implemented a Local provider integration via evaluation creation dialog, enabling users to plug in their own evaluation logic by registering local JS, Python, or Go files as custom providers. This expands customization capabilities and accelerates on-prem or edge evaluation deployments. - Optimized memory usage for large evaluations to eliminate Out Of Memory errors. This included updates to internal evaluation logic, output handling, and accompanying docs and CLI, enabling processing of larger datasets and outputs without sacrificing stability. - Delivered comprehensive Red Team framework enhancements and configurability, including RBAC scope for graders, enhanced purpose fields for security assessments, GOAT strategy options (stateless mode), configuration key changes, session management across HTTP interactions, setup flow refactor, multi-turn strategy guidance, session parsing, telemetry improvements, and robustness fixes. Version bumped to 0.95.0 with several related chores and documentation updates. Major improvements in business value: - Increased customization and extensibility for evaluation workflows, enabling customers to tailor evaluation logic to their needs. - Improved reliability and scalability of large-scale evaluations, reducing downtime and support overhead. - Stronger security assessment capabilities through enhanced Red Team tooling and configurability, improving confidence in security postures. Technologies/skills demonstrated: - Cross-language provider integration (JavaScript, Python, Go) and UI integration for file-based providers. - Memory optimization, efficient streaming/output handling, and large data pipeline resilience. - RBAC design, stateless/stateful GOAT options, session management, and multi-turn strategy orchestration. - Extensive documentation and telemetry integration to support operability and observability. Overall impact: - The month delivered tangible business value by enabling broader customization, improving performance at scale, and strengthening security assessment capabilities, while maintaining strong execution discipline across UI, backend, and infrastructure layers.
November 2024
18 Commits • 2 Features
Nov 1, 2024Month: 2024-11 Concise monthly summary for promptfoo/promptfoo focusing on delivering business value and technical excellence. Key outcomes: - Implemented a Local provider integration via evaluation creation dialog, enabling users to plug in their own evaluation logic by registering local JS, Python, or Go files as custom providers. This expands customization capabilities and accelerates on-prem or edge evaluation deployments. - Optimized memory usage for large evaluations to eliminate Out Of Memory errors. This included updates to internal evaluation logic, output handling, and accompanying docs and CLI, enabling processing of larger datasets and outputs without sacrificing stability. - Delivered comprehensive Red Team framework enhancements and configurability, including RBAC scope for graders, enhanced purpose fields for security assessments, GOAT strategy options (stateless mode), configuration key changes, session management across HTTP interactions, setup flow refactor, multi-turn strategy guidance, session parsing, telemetry improvements, and robustness fixes. Version bumped to 0.95.0 with several related chores and documentation updates. Major improvements in business value: - Increased customization and extensibility for evaluation workflows, enabling customers to tailor evaluation logic to their needs. - Improved reliability and scalability of large-scale evaluations, reducing downtime and support overhead. - Stronger security assessment capabilities through enhanced Red Team tooling and configurability, improving confidence in security postures. Technologies/skills demonstrated: - Cross-language provider integration (JavaScript, Python, Go) and UI integration for file-based providers. - Memory optimization, efficient streaming/output handling, and large data pipeline resilience. - RBAC design, stateless/stateful GOAT options, session management, and multi-turn strategy orchestration. - Extensive documentation and telemetry integration to support operability and observability. Overall impact: - The month delivered tangible business value by enabling broader customization, improving performance at scale, and strengthening security assessment capabilities, while maintaining strong execution discipline across UI, backend, and infrastructure layers.
October 2024
1 Commits • 1 Features
Oct 1, 2024For 2024-10, delivered a major enhancement to the risk categorization system in promptfoo/promptfoo, adding granular statuses (including pii statuses) and a new 'harmful:chemical-biological-weapons' status under Legal Risk. This enables more precise risk classification and supports downstream automation for risk gating, compliance, and content moderation. The change was implemented via a targeted status-model update and a chore commit that adds missing statuses (ref #2030). Overall, this work improves risk visibility and informs risk-aware decision making across product and legal teams.
1 Commits • 1 Features
Oct 1, 2024For 2024-10, delivered a major enhancement to the risk categorization system in promptfoo/promptfoo, adding granular statuses (including pii statuses) and a new 'harmful:chemical-biological-weapons' status under Legal Risk. This enables more precise risk classification and supports downstream automation for risk gating, compliance, and content moderation. The change was implemented via a targeted status-model update and a chore commit that adds missing statuses (ref #2030). Overall, this work improves risk visibility and informs risk-aware decision making across product and legal teams.
October 2024
Activity
Loading activity data...
Quality Metrics
Correctness91.2%
Maintainability90.4%
Architecture86.4%
Performance84.4%
AI Usage24.8%
Skills & Technologies
Programming Languages
CSSGit ConfigurationHTMLJSONJavaScriptMarkdownN/ASQLShellTypeScript
Technical Skills
AI AgentsAI IntegrationAI Prompt EngineeringAPI DesignAPI DevelopmentAPI IntegrationAPI SecurityAnalyticsArchivingAsynchronous ProgrammingAuthenticationBackend DevelopmentBackend developmentBrowser APIsBuild Automation
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline