# Threejs Debug Profiler

> Debug and profile Three.js browser games. Combines scene debugging, render/runtime/loading/animation/resize/mobile input fixes, performance profiling, draw calls, triangles, textures, memory, shader/post-processing cost, bundle size, and mobile DPR/input issues.

- **Type:** Skill
- **Install:** `agentstack add skill-majidmanzarpour-threejs-game-skills-threejs-debug-profiler`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [majidmanzarpour](https://agentstack.voostack.com/s/majidmanzarpour)
- **Installs:** 0
- **Category:** [Web & Browser](https://agentstack.voostack.com/c/web-and-browser)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [majidmanzarpour](https://github.com/majidmanzarpour)
- **Source:** https://github.com/majidmanzarpour/threejs-game-skills/tree/main/skills/threejs-debug-profiler

## Install

```sh
agentstack add skill-majidmanzarpour-threejs-game-skills-threejs-debug-profiler
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Three.js Debug Profiler

## Purpose

Find root causes and optimize measured bottlenecks without breaking playability.

## Debug Workflow

Load `references/debug-profile-checklists.md` as the first action when debugging render/runtime/mobile issues, asset loading, audio loading/playback, animation, resize, input, blank canvas, physics/collision bugs, or profiling performance. Track it in a reference ledger with yes/no, path, and failure reason. Do not mark the debug/profile phase complete while this reference is skipped for debug or profiling work.

Load `references/checklists/scene-debugging.md` for render/runtime bug diagnosis, `references/checklists/performance-profile.md` for profiling work, and `references/checklists/mobile-input.md` for mobile render/input issues. Load `references/prompt-templates.md` only when the user asks for reusable debug/profile prompts or a task template.

1. Reproduce locally.
2. Read console/page/network errors.
3. Check canvas display size and drawing-buffer size.
4. Check renderer/context/loop ownership.
5. Check camera, aspect, near/far, lights, materials, fog, scene contents, transforms.
6. Check asset paths/loaders/CORS/base path.
7. Check animation delta units, physics/update order, fixed timestep, collider/body ownership, input listeners, pointer/touch behavior, resize, and audio context unlock/decode errors when audio is involved.
8. Fix root cause in owning module.
9. Verify browser screenshot, nonblank canvas, console/page errors, and broken path.

## Performance Workflow

1. Reproduce in correct build mode.
2. Record baseline: FPS/frame time, draw calls, triangles, geometries, textures, memory, bundle.
3. Identify CPU/GPU/memory/network bottleneck.
4. Optimize one thing at a time: instancing, shared resources, culling, LOD, DPR cap, cheaper shadows/post, texture discipline.
5. Re-measure same scenario and verify visuals/playability.

## Final Response

Lead with root cause or bottleneck. Report the reference ledger, checklist items used, files changed, baseline/post metrics, commands, screenshots/artifacts, broken paths retested, and residual risks.

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [majidmanzarpour](https://github.com/majidmanzarpour)
- **Source:** [majidmanzarpour/threejs-game-skills](https://github.com/majidmanzarpour/threejs-game-skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-majidmanzarpour-threejs-game-skills-threejs-debug-profiler
- Seller: https://agentstack.voostack.com/s/majidmanzarpour
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.