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hoshinotsuyoshi

PROFILE

Hoshinotsuyoshi

Tsuyoshi Hoshino engineered and maintained core features for the liam-hq/liam repository, focusing on real-time schema management, public sharing, and robust authentication. He delivered end-to-end data flows using TypeScript, React, and Supabase, enabling live schema updates, chat, and secure access control. His work included transactional schema versioning, dynamic OAuth callback handling, and modular CLI tooling, all supported by comprehensive testing and CI/CD automation. By integrating API-driven workflows, optimizing database parsing, and modernizing the UI with Radix UI and Storybook, Tsuyoshi improved reliability, cross-platform compatibility, and developer experience, demonstrating depth in backend, frontend, and DevOps engineering.

Overall Statistics

Feature vs Bugs

71%Features

Repository Contributions

502Total
Bugs
85
Commits
502
Features
213
Lines of code
66,643
Activity Months10

Work History

September 2025

77 Commits • 29 Features

Sep 1, 2025

September 2025 highlights: Hardened reliability, security, and performance across liam-hq/liam by delivering domain-aware authentication, hosting polish, and repository-wide improvements. Notable features include dynamic OAuth callback URL, production asset prefix updates with deprecated domain cleanup, and CDN assets app deployment via Vercel. Release workflows and E2E pipelines were strengthened, while DB Agent reliability and OpenAI schema tooling were hardened for stability and correctness. Security and observability were advanced through access-control hardening, auth-root redirects, and additional debug logging. These efforts reduce operational risk, speed up publishing, improve user experience, and empower faster iteration.

August 2025

75 Commits • 29 Features

Aug 1, 2025

August 2025 performance highlights: Delivered end-to-end public sharing capabilities with Server Actions and ViewMode foundation, a polished UI, and a secure login flow; improved tooling reliability and performance (CLI concurrency, test assets, Windows path support); tightened security and governance (column-level permissions, robots meta tag, dependabot/Prisma fixes); modernized UI/DX (Storybook upgrade, modal-based ShareDialog, Radix UI replacements); and strengthened documentation and internal processes (cross-repo guidance, English PR requirement, benchmark/docs updates).

July 2025

40 Commits • 15 Features

Jul 1, 2025

July 2025 (liam-hq/liam) focused on hardening developer experience, expanding the feature set for schema generation and database parsing, and improving CI/CD robustness. The month delivered concrete business-value improvements in CLI reliability, testing determinism, and schema accuracy, enabling faster, safer releases and clearer data-model diagnostics. Key work spanned CLI enhancements, parsers, schema-bench test coverage, and scalable executor patterns, all backed by stronger test coverage and documentation improvements.

June 2025

31 Commits • 22 Features

Jun 1, 2025

June 2025 highlights: Delivered end-to-end real-time capabilities, strengthened data integrity across schemas, and boosted developer productivity through tooling and testing enhancements. Real-time features via Supabase subscriptions extended to both chat and schema updates, delivering near-instant user feedback with reduced log noise thanks to suppressed console errors for subscription failures. UI stability improvements were introduced with stable ERDContent rendering keys based on the hashed schema and a latestVersionNumber state in the SessionDetailPage to reflect schema updates in real time. Robust schema handling and performance improvements were achieved by unifying the schema fetching logic, improving realtime update handling, and optimizing candidate lookups in name/schema matching (with LCS logic removed to fix incorrect overlaps). Seed data was expanded with a second test user and organization linkage to support more thorough end-to-end testing. Automation and tooling witnessed significant uplift: bot PR processing enabled, CLI restructuring with new entry points, and comprehensive tests for evaluation/workspace setup, supported by a neverthrow-based evaluation workflow and modular setup patterns. The Schema-Bench initiative was advanced with an initialized package (configs/deps), name similarity matchers (MiniLM and word overlap), core evaluation metrics, and thorough documentation updates to capture architecture, evaluation methodology, and FK considerations.

May 2025

18 Commits • 9 Features

May 1, 2025

May 2025 focused on stabilizing CI/CD, hardening schema governance, and delivering key product capabilities for Liam. Highlights include CI reliability improvements (manual E2E status posting via GitHub CLI and fixes to avoid 'workflow is not valid' errors), schema and data governance enhancements (JSON Patch-based schema versioning, transactional schema updates via RPC, and moving/rebuilding base schema from initial snapshot with a new unique constraint on design_session_id in building_schemas), plus product features (design session creation flow and detail view, and chat message persistence via Supabase). Quality and developer experience gains include lint fixes across app/cli/db-structure, test snapshot updates (vrt), increased timeout for toolbar tests to reduce flakiness, and code formatting/dependency install automation. Documentation and refactors were also completed to better reflect UI structure (pageTree prop propagation in Breadcrumb/FooterNavi).

April 2025

68 Commits • 28 Features

Apr 1, 2025

April 2025: The Liam team delivered major testing and reliability improvements, hardened invitation flows, and UI/data tooling, while stabilizing core data and deployment pipelines. Key outcomes include expanded prompt-test infrastructure, structured output for generateReview, Langfuse CI/migration work, token-based invitation flow with atomic RPCs, and targeted UI/UX and data-layer enhancements that reduce risk and accelerate delivery.

March 2025

43 Commits • 21 Features

Mar 1, 2025

March 2025 summary for liam-hq/liam: Implemented a streamlined CI/CD automation pipeline and Process Flow scaffolding, expanded PR workflow capabilities, hardened webhook handling, and added new task endpoints and UI enhancements. Docs were refreshed to reflect current processes, and deployment automation was extended with trigger.dev auto-deploy and staging settings. The work also included codebase organization improvements, packaging refactors, and enhanced testing/CI coverage to improve reliability and developer experience.

February 2025

19 Commits • 3 Features

Feb 1, 2025

February 2025 — liam: Key features delivered include ERD UI/UX Enhancements (mobile sidebar hide, scrollable sidebar, new NetworkError SVG) and React Flow API exposure via useCustomReactflow; SQL processing reliability improvements with memory optimizations and new tests; and ongoing maintenance with CI/CD and dependency updates. Major bugs fixed include external links security hardening (noreferrer) and Windows cross-platform compatibility improvements via Node.js fs operations. Overall impact: improved UX, API ergonomics, reliability, and security, enabling faster feature delivery and safer deployments. Technologies/skills demonstrated: React, React Flow, Node.js filesystem operations, test-driven development, CI/CD automation, ADRs, and Fuse.js decision.

January 2025

81 Commits • 38 Features

Jan 1, 2025

January 2025 (liam-hq/liam) - Focused on stabilizing the ERD web experience, strengthening error handling, and improving onboarding. Delivered end-to-end deployment workflow updates for ERD-Web in CI, introduced a robust ErrorDisplay with detailed error summaries and network error handling, achieved UI/UX stability improvements with rendering optimizations and mobile styling, launched an interactive CLI init flow with Inquirer and optional GitHub Actions workflow, and advanced Prisma/db-structure support including parsing default values and parser refinements. These changes reduce deployment risk, accelerate onboarding, improve fault diagnosis, and enhance developer productivity across the stack.

December 2024

50 Commits • 19 Features

Dec 1, 2024

December 2024 (liam-hq/liam): Delivered a mix of user-facing enhancements and build/CLI reliability improvements that accelerate release cycles and strengthen diagram tooling. Major UX improvements include ERDRenderer Tooltip support to reveal additional info on hover, enabling faster data discovery in ER diagrams. Build and input workflows were hardened with https input URL handling and a streamlined erd build --input flow, alongside path updates and removal of an unnecessary token from Vercel deploy commands. Table UI performance and correctness were boosted via caching relationship checks, layout refinements, and proactive reloading of related tables on activation. The month also fortified developer experience and deployment pipelines with CLI versioning/env var integration, Changeset Bot adjustments, and better logging/types for table interactions.

Activity

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Quality Metrics

Correctness92.4%
Maintainability92.4%
Architecture88.4%
Performance87.6%
AI Usage37.6%

Skills & Technologies

Programming Languages

BashBinaryCSSGitGoHTMLJSONJavaScriptMarkdownPL/pgSQL

Technical Skills

AI IntegrationAI-Assisted DevelopmentAPI DevelopmentAPI IntegrationAPI Integration TestingAPI SecurityAPI developmentASCII Art GenerationAccess ControlAccessibilityAgent DevelopmentAlgorithm DesignAlgorithm ImplementationAlgorithm ImprovementArchitecture Decision Records

Repositories Contributed To

1 repo

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

liam-hq/liam

Dec 2024 Sep 2025
10 Months active

Languages Used

CSSJSONJavaScriptMarkdownShellTypeScriptYAMLBash

Technical Skills

Backend DevelopmentBuild ProcessBuild ToolsCI/CDCLI DevelopmentCSS

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