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Adam Williams

PROFILE

Adam Williams

Andrew Williams developed and enhanced core features for Fastly’s Viceroy and CLI repositories, focusing on scalable access control and configuration management. He implemented new ACL hostcalls and CLI tooling in Rust and WebAssembly, enabling secure, flexible access control list operations and robust test coverage. In Viceroy, he upgraded the Fastly crate to expand hostcall support for HTTP requests and cache operations, aligning tests and adapters with SDK changes for improved reliability. For the Fastly CLI, he increased the maximum configuration store entry size, introducing safer defaults and per-user API enforcement. His work emphasized API development, system programming, and operational flexibility.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

3Total
Bugs
0
Commits
3
Features
3
Lines of code
1,643
Activity Months3

Work History

June 2025

1 Commits • 1 Features

Jun 1, 2025

June 2025: Delivered a key CLI feature to increase the maximum configuration store entry size, enabling larger values and reducing the need for manual workarounds. The change implements a 64k limit with a default of 8k and per-user API enforcement, ensuring safe defaults and compliance. Commit reference for traceability: 7eeb8ca18a09a67480567d0c61626db1404446d3 ("Increase max config store value length"; #1485). No major bugs fixed this month; focus was on feature delivery, reliability, and user experience. Business impact: improved flexibility for large configurations in the Fastly CLI, reducing friction for deployments and configurations.

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary for fastly/Viceroy. Delivered a crate upgrade with hostcall enhancements and expanded capabilities: upgraded the Fastly crate to 0.11.1, enabling new hostcalls for HTTP requests and cache operations; tests were updated to align with SDK changes; the adapter was enhanced to surface previously unsupported hostcalls, increasing Fastly service coverage and reliability for deployments.

November 2024

1 Commits • 1 Features

Nov 1, 2024

November 2024 monthly summary for developer work focusing on Fastly ACL integration in fastly/Viceroy. Delivered new ACL hostcalls and related tooling to enable secure, scalable access control configurations with robust tests and CLI support.

Activity

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Quality Metrics

Correctness96.6%
Maintainability93.4%
Architecture96.6%
Performance86.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

GoRustWasm

Technical Skills

API DevelopmentCLI DevelopmentConfiguration ManagementNetworkingRustSDK IntegrationSystem ProgrammingTestingWebAssembly

Repositories Contributed To

2 repos

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

fastly/Viceroy

Nov 2024 Dec 2024
2 Months active

Languages Used

RustWasm

Technical Skills

API DevelopmentNetworkingRustSystem ProgrammingWebAssemblySDK Integration

fastly/cli

Jun 2025 Jun 2025
1 Month active

Languages Used

Go

Technical Skills

CLI DevelopmentConfiguration Management

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