mckinsey/agents-at-scale-ark
Oct 2025 – Mar 2026
5 Months active
Languages Used
GoCSSJavaScriptPythonTypeScriptJSONYAML
Technical Skills
API developmentGolangbackend developmentAPI DevelopmentAWSBackend Development
Daniele
PROFILE
Daniele
Daniele Marostica contributed to the mckinsey/agents-at-scale-ark repository by delivering features and fixes across backend and frontend systems over five months. He enhanced the Golang-based MCP SSE transport for more reliable long-lived connections, expanded AWS Bedrock model provisioning via CLI, and introduced third-party marketplace integration through configurable settings. Daniele aligned the dashboard UI with the QB design system using React and TypeScript, improving consistency and accessibility. He addressed security by upgrading Go runtimes to remediate CVEs and maintained robust test coverage with end-to-end and unit tests. His work demonstrated depth in API development, DevOps, and UI/UX design, ensuring maintainable, secure solutions.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
19Total
Bugs
3
Commits
19
Features
12
Lines of code
8,378
Activity Months5
Your Network
42 peopleWork History
March 2026
2 Commits • 1 Features
Mar 1, 2026March 2026 (2026-03) focused on expanding integration capabilities and strengthening security for mckinsey/agents-at-scale-ark. Key delivery: Third-Party Marketplace Integration enabled via settings, expanding customization and partner ecosystem. Major fix: Security upgrade to Go 1.25.8 across the stack to remediate CVE-2026-25679 and CVE-2026-27142, reducing SSRF and XSS risks. Outcome: broader marketplace support, improved security posture, and maintainable upgrade paths via synchronized changes across modules.
2 Commits • 1 Features
Mar 1, 2026March 2026 (2026-03) focused on expanding integration capabilities and strengthening security for mckinsey/agents-at-scale-ark. Key delivery: Third-Party Marketplace Integration enabled via settings, expanding customization and partner ecosystem. Major fix: Security upgrade to Go 1.25.8 across the stack to remediate CVE-2026-25679 and CVE-2026-27142, reducing SSRF and XSS risks. Outcome: broader marketplace support, improved security posture, and maintainable upgrade paths via synchronized changes across modules.
March 2026
January 2026
2 Commits • 1 Features
Jan 1, 2026Monthly work summary for 2026-01 focusing on delivering business value through UI consistency, bug resolution, and solid testing practices across the mckinsey/agents-at-scale-ark repository.
January 2026
2 Commits • 1 Features
Jan 1, 2026Monthly work summary for 2026-01 focusing on delivering business value through UI consistency, bug resolution, and solid testing practices across the mckinsey/agents-at-scale-ark repository.
December 2025
6 Commits • 4 Features
Dec 1, 2025Month: 2025-12 | Repository: mckinsey/agents-at-scale-ark Overview: This month focused on delivering a cohesive UI experience aligned with the QB design system, improving user productivity with experimental features, and enhancing chat capabilities while ensuring stability with robust tests. Key features delivered - ARK Dashboard UI/Design System Alignment and Polish: Consolidated dashboard UI improvements to align with the QB design system. Includes logo updates, background consistency, color token alignment, dark mode enhancements, and unified styles for switches, checkboxes, and modals. Commits: 53c7d8c95ff004d21db5d508f4fe7853d44df2ff; 4ede406ba4079a888c3fb0fd18d04eeafcceaa9e; Internal ticket: ARKQB-519. End-to-end tests and essential unit tests pass. - Experimental Features Management UX and Defaults: Always-available Experimental Features Dialog UI with keyboard shortcuts; feature flags default to enabled and persisted in local storage; tests updated. Commits: 0f18b902de98ab16c9f834914665002abd42f403; 8ac1d97f7d7d0465ffc1671fe280be98810ed92b. Internal ticket: ARKQB-554. - Floating Chat UI Enhancement: Minimize floating chat to multitask while agent responds; essential chat functions preserved in minimized state. Commit: aabd85d9665719c668ec09ba5b74bc392def35ff. - Chat Streaming by Default: Enabled real-time chat streaming by default; tests updated to reflect change. Commit: 82d62679584a57b0254000e9a5a2d5bd903c9a8f. Major bugs fixed - Fixed feature flags reset when defaulting to enabled, ensuring user preferences remain stable across sessions. Commit: 8ac1d97f7d7d0465ffc1671fe280be98810ed92b. - Misc UI polish fixes aligned to the design system (dark/light mode, paddings, and component consistency) as part of the design alignment PRs. Commits: 53c7d8c95ff..., 4ede406ba4... Overall impact and accomplishments - Enhanced product consistency and brand parity with QB DS, reducing cognitive load and accelerating onboarding for Ark dashboard users. - Increased agent productivity via multitask-friendly chat (minimized state) and always-on experimental features, enabling faster experimentation without workflow disruption. - Strengthened reliability with a strong emphasis on testing (end-to-end and unit tests) across major UI changes and feature-flags flows. Technologies/skills demonstrated - Frontend engineering: React-based components (Switch, Checkbox, Modals), design tokens, and dark/light theming aligned to a shared design system. - State and persistence: LocalStorage-backed feature flags for persistent user preferences. - Accessibility and UX: Keyboard shortcuts (CMD+E/CTRL+E), consistent UI patterns, and reduced friction in heavy-use dashboards. - Testing discipline: End-to-end and unit tests coverage for critical UI and feature-flags; cross-repo collaboration with QB DS alignment.
6 Commits • 4 Features
Dec 1, 2025Month: 2025-12 | Repository: mckinsey/agents-at-scale-ark Overview: This month focused on delivering a cohesive UI experience aligned with the QB design system, improving user productivity with experimental features, and enhancing chat capabilities while ensuring stability with robust tests. Key features delivered - ARK Dashboard UI/Design System Alignment and Polish: Consolidated dashboard UI improvements to align with the QB design system. Includes logo updates, background consistency, color token alignment, dark mode enhancements, and unified styles for switches, checkboxes, and modals. Commits: 53c7d8c95ff004d21db5d508f4fe7853d44df2ff; 4ede406ba4079a888c3fb0fd18d04eeafcceaa9e; Internal ticket: ARKQB-519. End-to-end tests and essential unit tests pass. - Experimental Features Management UX and Defaults: Always-available Experimental Features Dialog UI with keyboard shortcuts; feature flags default to enabled and persisted in local storage; tests updated. Commits: 0f18b902de98ab16c9f834914665002abd42f403; 8ac1d97f7d7d0465ffc1671fe280be98810ed92b. Internal ticket: ARKQB-554. - Floating Chat UI Enhancement: Minimize floating chat to multitask while agent responds; essential chat functions preserved in minimized state. Commit: aabd85d9665719c668ec09ba5b74bc392def35ff. - Chat Streaming by Default: Enabled real-time chat streaming by default; tests updated to reflect change. Commit: 82d62679584a57b0254000e9a5a2d5bd903c9a8f. Major bugs fixed - Fixed feature flags reset when defaulting to enabled, ensuring user preferences remain stable across sessions. Commit: 8ac1d97f7d7d0465ffc1671fe280be98810ed92b. - Misc UI polish fixes aligned to the design system (dark/light mode, paddings, and component consistency) as part of the design alignment PRs. Commits: 53c7d8c95ff..., 4ede406ba4... Overall impact and accomplishments - Enhanced product consistency and brand parity with QB DS, reducing cognitive load and accelerating onboarding for Ark dashboard users. - Increased agent productivity via multitask-friendly chat (minimized state) and always-on experimental features, enabling faster experimentation without workflow disruption. - Strengthened reliability with a strong emphasis on testing (end-to-end and unit tests) across major UI changes and feature-flags flows. Technologies/skills demonstrated - Frontend engineering: React-based components (Switch, Checkbox, Modals), design tokens, and dark/light theming aligned to a shared design system. - State and persistence: LocalStorage-backed feature flags for persistent user preferences. - Accessibility and UX: Keyboard shortcuts (CMD+E/CTRL+E), consistent UI patterns, and reduced friction in heavy-use dashboards. - Testing discipline: End-to-end and unit tests coverage for critical UI and feature-flags; cross-repo collaboration with QB DS alignment.
December 2025
November 2025
8 Commits • 5 Features
Nov 1, 2025November 2025 (2025-11) monthly summary for mckinsey/agents-at-scale-ark. Business value: improved reliability, expanded provisioning capabilities, and enhanced task orchestration through CLI and UI improvements. Key features delivered include: AWS Bedrock model creation via Ark create model CLI with provider-agnostic configuration; Query management CLI with list and delete commands; A2A Tasks dashboard and APIs with API access for service accounts and a feature-flag controlled dashboard; A2A Task detail page; UI Theme refresh aligning light and experimental dark theme with QB design library; Chat streaming feature flag enabling controlled rollout. Major bugs fixed: SSE transport CI test reliability: server readiness checks improved and test output verbosity enhanced, reducing flakiness. Overall impact: more reliable CI, faster model provisioning, richer task management and dashboards for operators and developers, improved UI consistency, and safer feature experimentation via flags. Technologies/skills demonstrated include provider-config abstraction, CLI tooling, unit and end-to-end testing, feature flag patterns, design system alignment, API/dashboard integration, and cross-team collaboration through docs and co-authored changes.
November 2025
8 Commits • 5 Features
Nov 1, 2025November 2025 (2025-11) monthly summary for mckinsey/agents-at-scale-ark. Business value: improved reliability, expanded provisioning capabilities, and enhanced task orchestration through CLI and UI improvements. Key features delivered include: AWS Bedrock model creation via Ark create model CLI with provider-agnostic configuration; Query management CLI with list and delete commands; A2A Tasks dashboard and APIs with API access for service accounts and a feature-flag controlled dashboard; A2A Task detail page; UI Theme refresh aligning light and experimental dark theme with QB design library; Chat streaming feature flag enabling controlled rollout. Major bugs fixed: SSE transport CI test reliability: server readiness checks improved and test output verbosity enhanced, reducing flakiness. Overall impact: more reliable CI, faster model provisioning, richer task management and dashboards for operators and developers, improved UI consistency, and safer feature experimentation via flags. Technologies/skills demonstrated include provider-config abstraction, CLI tooling, unit and end-to-end testing, feature flag patterns, design system alignment, API/dashboard integration, and cross-team collaboration through docs and co-authored changes.
October 2025
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Delivery focused on the mckinsey/agents-at-scale-ark Golang MCP SSE transport. Key improvements include long-lived SSE connections, a dependency upgrade to the modelcontextprotocol/go-sdk (v1.0.0) for compatibility, and targeted fixes to enhance reliability and performance of the MCP client.
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Delivery focused on the mckinsey/agents-at-scale-ark Golang MCP SSE transport. Key improvements include long-lived SSE connections, a dependency upgrade to the modelcontextprotocol/go-sdk (v1.0.0) for compatibility, and targeted fixes to enhance reliability and performance of the MCP client.
October 2025
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Quality Metrics
Correctness93.8%
Maintainability80.0%
Architecture81.0%
Performance80.0%
AI Usage51.6%
Skills & Technologies
Programming Languages
CSSGoJSONJavaScriptPythonTypeScriptYAML
Technical Skills
API DevelopmentAPI developmentAWSBackend DevelopmentCI/CDCLI DevelopmentDevOpsDockerError HandlingFastAPIFrontend DevelopmentGoGolangOutput FormattingReact
Repositories Contributed To
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