nethercore

Use this agent to analyze ROM builds and identify size optimization opportunities. <example> Context: User has a game that's too large user: "My ROM is 18MB, I need to get it under 16MB" assistant: [Launches build-analyzer to analyze the build output and identify largest assets] <commentary> The agent will run nether build --verbose, parse the output, and identify the largest contributors to ROM size. </commentary> </example>

Use this agent to debug issues using replay files or to set up replay-based testing. <example> Context: User has a bug they want to reproduce user: "I have a replay file where my character falls through the floor, help me debug it" assistant: [Launches replay-debugger to analyze the replay and help identify the bug] <commentary> The agent will help set up replay playback and add logging to identify the issue. </commentary> </example>

Runtime debugging tools for Nethercore games on all consoles. Covers the F4 Debug Inspector, live value editing, watch variables, frame stepping, and time-scale controls. Use when tuning game parameters at runtime, tracking state over time, or stepping through frames to find bugs.

Core development workflow for Nethercore WASM games. Covers the nether CLI (build, run, pack), nether.toml manifest authoring, required WASM exports, and determinism rules for rollback netcode. Use when building, configuring, or structuring a Nethercore game project.

Optimization techniques for Nethercore WASM games. Covers WASM binary size reduction (LTO, wasm-opt), texture and mesh compression, audio optimization, and state size minimization. Use when a ROM exceeds size limits or when reducing build output size.

Publishing Nethercore games to nethercore.systems. Covers ROM packaging with nether pack, release builds, platform upload requirements, versioning, and CI/CD pipeline setup with GitHub Actions. Use when preparing a game for release or setting up automated builds.

Testing Nethercore games for determinism and correctness. Covers sync testing, replay recording and playback, debug actions, and desync diagnosis. Use when running sync tests, setting up replay-based regression tests, or diagnosing determinism failures.