# saemihemma > Open-source publisher. Listings imported from github.com/saemihemma — credited to the original author with their license. - **Listings:** 50 - **Total installs:** 0 - **Profile:** https://agentstack.voostack.com/s/saemihemma - **Website:** https://github.com/saemihemma ## Published listings - [Role Java Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-java-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-java-engineer` Java code review: modern Java (14+), records, sealed classes, immutability, JUnit 5 + AssertJ patterns, and Spring Boot conventions. Use when reviewing or writing Java code. - [Role Game Balance Designer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-game-balance-designer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-game-balance-designer` Combat and progression balance: stat budgets, TTK/DPS, power curves, difficulty scaling, and competitive fairness. Use when tuning numbers that determine pacing, challenge, and power growth. - [Lead Producer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-lead-producer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-lead-producer` Top-level orchestrator for multi-domain tasks. Routes work to specialist roles, enforces simplification, stress-tests via Devil's Advocate before acceptance. - [Role Security Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-security-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-security-engineer` Security review: threat modeling, attack-surface analysis, auth/authz audit, supply-chain risk, and exploit prioritization. Use for pre-release security assessment or vulnerability review. - [Team Infrastructure](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-team-infrastructure) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-team-infrastructure` Infrastructure team: deployment safety, capacity, observability, platform setup, and data-operational risk in one production-readiness assessment. - [Role Kotlin Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-kotlin-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-kotlin-engineer` Kotlin code review: null safety, immutability, coroutine patterns, sealed types, and testing with Kotest/Turbine. Use when reviewing or writing Kotlin code. - [Role Python Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-python-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-python-engineer` Python code review: PEP 8, type annotations, immutability patterns, pytest discipline, and async patterns. Use when reviewing or writing Python code. - [Team Frontend Team](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-team-frontend-team) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-team-frontend-team` Frontend review team: UX quality, implementation health, accessibility, and frontend-backend integration in one recommendation. Use for UI features or frontend-heavy flows. - [Role Economist](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-economist) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-economist` Monetary health analysis: money supply, inflation/deflation, wealth distribution, liquidity, and fiscal policy levers. Use when analyzing economic health metrics or recommending macro-level policy adjustments. - [Role Railway Deployment](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-railway-deployment) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-railway-deployment` Railway.app deployment review: service topology, environment handling, scaling rules, persistence, observability, and platform cost. Use for Railway-specific deployment planning or auditing. - [Role Narrative Designer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-narrative-designer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-narrative-designer` Narrative review: story structure, quests, characters, dialogue, lore coherence, and emotional beats. Use when evaluating whether the story lands and stays consistent — not whether the mechanics are fun or fair. - [Role Community Developer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-community-developer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-community-developer` Community health: contributor onboarding, governance, communication, ecosystem extensibility, and participation barriers. Use when diagnosing why a community is stagnant or hard to join. - [Role Software Architect](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-software-architect) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-software-architect` System architecture review: decomposition, service boundaries, contracts, migrations, and hard-to-reverse decisions. Use when designing systems or evaluating what becomes difficult to change later. - [Role Backend Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-backend-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-backend-engineer` Backend systems review: APIs, database access, concurrency, caching, and failure handling. Use when investigating correctness risks, performance bottlenecks, or resilience gaps in server-side systems. - [Role Devops Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-devops-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-devops-engineer` Infrastructure and operations review: CI/CD pipelines, monitoring, incident readiness, rollback paths, and deployment safety. Use when evaluating whether a system can ship and recover safely. - [Role Liveops Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-liveops-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-liveops-engineer` Live-service operations: incident triage, hotfix decisions, rollback criteria, player-impact assessment, and degradation strategies. Use when something is broken in production or when designing incident readiness. - [Role Unity Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-unity-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-unity-engineer` Unity / C# engine review: component architecture, MonoBehaviour lifecycle, ScriptableObjects, modern C# idioms, and GC/frame-budget performance. Use when reviewing or writing Unity game code or C#. - [Team Blue Team](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-team-blue-team) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-team-blue-team` Verification team for cleanup and simplification work. Confirms behavior, contracts, and architecture truth still hold after code removal or collapse. - [Role Context Manager](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-context-manager) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-context-manager` Context window management: persisting critical state, checkpointing, and preventing context degradation in long sessions. Trigger at ~60% context usage or before large tasks. - [Role Qa Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-qa-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-qa-engineer` Test strategy, coverage analysis, regression risk, edge cases, and acceptance criteria. Use when deciding what to test, diagnosing flaky tests, or designing verification plans. - [Role Move Sui Developer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-move-sui-developer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-move-sui-developer` Move and Sui smart contract review: object ownership, capability safety, access control, transaction shape, gas risk, and upgrade implications. Use for smart contract audit or on-chain feature design. - [Role Code Reduction Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-code-reduction-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-code-reduction-engineer` Safe removal of dead, duplicate, or unnecessarily complex code. Use when the safest improvement is deletion or simplification without changing architecture truth or intended behavior. - [Role Typescript Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-typescript-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-typescript-engineer` TypeScript/JavaScript code review: strict typing, type-level design, async correctness, module boundaries, and Vitest/Jest discipline. Use when reviewing or writing TypeScript or JavaScript code. - [Role Product Marketing Manager](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-product-marketing-manager) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-product-marketing-manager` Go-to-market review: launch planning, market and competitive positioning, audience targeting, and campaign messaging strategy. Use when taking something that already exists to market — not defining brand identity or deciding whether to build it. - [Role Rust Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-rust-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-rust-engineer` Rust code review: ownership, borrowing, error handling, trait design, async patterns, and testing. Use when reviewing or writing Rust code. - [Role Technical Product Manager](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-technical-product-manager) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-technical-product-manager` Technical feasibility gating: dependency risk, rollout complexity, hidden costs, and scope cuts. Use when a product decision depends on technical feasibility or migration risk. - [Role Cpp Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-cpp-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-cpp-engineer` C++ code review: modern standards (C++17/20/23), RAII, memory safety, value semantics, const correctness, and GoogleTest patterns. Use when reviewing or writing C++ code. - [Role Cto](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-cto) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-cto` Strategic technology decisions: build-vs-buy, platform bets, vendor evaluation, TCO analysis, and organizational readiness. Use when technology direction must match business, team, and time horizon. - [Role Godot Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-godot-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-godot-engineer` Godot 4 / GDScript engine review: scene-node architecture, signals and event buses, static typing, Resources, performance, and shaders/GDExtension. Use when reviewing or writing Godot game code. - [Role Brand Strategist](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-brand-strategist) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-brand-strategist` Brand voice, positioning, visual rules, and cross-surface consistency. Use when defining or applying brand identity without turning into raw frontend implementation. - [Team Dev Team](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-team-dev-team) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-team-dev-team` Technical review team: architecture, code quality, and test coverage in one unified assessment. Use for code review, design review, or implementation validation. - [Role Economy Designer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-economy-designer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-economy-designer` Economy systems architecture: faucets, sinks, converters, resource flows, marketplace mechanics, and loop closure. Use when designing or reviewing structural mechanics that move value through a system. - [Team Brand Team](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-team-brand-team) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-team-brand-team` Brand system team: tone, positioning, visual rules, and cross-surface identity standards. Use when defining or tightening brand consistency across product, docs, and community. - [Team Architecture Review](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-team-architecture-review) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-team-architecture-review` Architecture review team: system design, migrations, hard-to-reverse decisions, with required Mermaid diagram. Use for new systems, major refactors, or technology choices. - [Role Technical Writer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-technical-writer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-technical-writer` Documentation review and design: Diataxis taxonomy, audience analysis, API docs, ADRs, changelogs, and progressive disclosure. Use when documentation needs clarity, structure, and maintainability assessment. - [Role Scalability Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-scalability-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-scalability-engineer` Scalability analysis: bottleneck identification, load profiling, capacity planning, and growth risk. Use when evaluating what breaks first at 10x or 100x scale. - [Role Behavioral Economist](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-behavioral-economist) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-behavioral-economist` Player behavior prediction through cognitive bias analysis: loss aversion, anchoring, FOMO, sunk cost, framing effects. Use when predicting why players won't do the mathematically optimal thing. - [Team Documentation](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-team-documentation) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-team-documentation` Documentation team: guides, API docs, ADRs, and knowledge-base work with scope control and audience fit. - [Role Open Source Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-open-source-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-open-source-engineer` Open source readiness: license compliance, dependency hygiene, SBOM, release process, and public-code safety. Use when preparing code for public release or auditing supply-chain transparency. - [Role Principal Software Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-principal-software-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-principal-software-engineer` Code quality, maintainability, abstraction health, and technical debt assessment. Use when reviewing whether code is understandable, changeable, and trustworthy for the next engineer. - [Team Economy Team](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-team-economy-team) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-team-economy-team` Economy analysis team: flow design, monetary health, player behavior, exploit risk, and product impact synthesized. Use for economy design, reward systems, marketplace, or monetary policy review. - [Role Level Designer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-level-designer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-level-designer` Level and content design review: spatial layout, encounter choreography, content sequencing, and moment-to-moment flow. Use when evaluating how a space or encounter is built — not the difficulty numbers or the global progression experience. - [Role Ui Ux Designer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-ui-ux-designer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-ui-ux-designer` UX review: user flows, information architecture, interaction patterns, visual hierarchy, error recovery, and accessibility. Use when analyzing whether users can complete their goal with low cognitive load. - [Role Frontend Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-frontend-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-frontend-engineer` Frontend systems review: components, state management, rendering performance, accessibility, bundle health, and network failure handling. Use when analyzing or designing frontend architecture. - [Role Data Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-data-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-data-engineer` Data pipeline review: schema contracts, freshness SLAs, ETL reliability, storage scaling, and data quality. Use when data systems need reliability-focused assessment. - [Role Database Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-database-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-database-engineer` Database review: schema design, query performance, indexing, migrations, and transactional integrity. Use when the database itself — not the pipeline or the service — is the risk. - [Role Product Manager](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-product-manager) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-product-manager` Product evaluation: user value, prioritization, MVP scope, launch conditions, and success metrics. Use when assessing whether a feature is worth doing and how to know if the bet paid off. - [Role Game Designer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-game-designer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-game-designer` Gameplay systems review: core loops, progression, onboarding, failure states, and player motivation. Use when evaluating whether a design is engaging, readable, and worth mastering. - [Role Analytics Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-analytics-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-analytics-engineer` Metrics and measurement review: KPI definitions, telemetry instrumentation, A/B test design, dashboard hierarchy, and anomaly detection. Use when ensuring metrics are trustworthy enough for decisions. - [Role Go Engineer](https://agentstack.voostack.com/l/skill-saemihemma-lead-producer-oss-role-go-engineer) — Skill · Free · security-reviewed — `agentstack add skill-saemihemma-lead-producer-oss-role-go-engineer` Go code review: idiomatic patterns, error handling, concurrency safety, interface design, and testing. Use when reviewing or writing Go code. --- Seller on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Install any with `agentstack add `.