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mcp/skillhub

Agent Skill

Physics Tuning skill

physics-tuninggamedev-skills/awesome-gamedev-agent-skillsskills/disciplines/physics-tuning/SKILL.md

Tune game physics for stable, good-feeling motion — fixed vs variable timestep, render interpolation, mass/gravity/drag, continuous collision detection (CCD) to stop tunneling, fixing jitter, and collision layers/masks. Engine-neutral. Use when the user mentions physics feel, jitter, tunneling, fixed timestep, FixedUpdate, CCD, bouncing/unstable physics, or collision layers.

2.7kApache-2.0

always on

83 tokname + description

once used

1,677 tokSKILL.md body

bundled files

14 KB

repo stars

2.7kGitHub

Install the Physics Tuning skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/gamedev-skills/awesome-gamedev-agent-skills --skill physics-tuning

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/gamedev-skills/awesome-gamedev-agent-skills.git /tmp/awesome-gamedev-agent-skills
mkdir -p ~/.claude/skills
cp -R /tmp/awesome-gamedev-agent-skills/skills/disciplines/physics-tuning ~/.claude/skills/physics-tuning

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description83 tok
When the agent uses itThe SKILL.md instructions1,677 tok
Only if opened1 bundled files (4 KB)varies

Until it is used, physics-tuning costs about 16× less than the median MCP server we measured (1,363 tokens on every turn). Installing all 75 skills from gamedev-skills/awesome-gamedev-agent-skills would load 6,712 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • Physics tuning
  • When to use
  • Core workflow
  • Patterns
  • 1. Fixed timestep for simulation, render interpolation for smoothness
  • 2. Stop tunneling: CCD + a speed cap
  • 3. Body tuning: mass, drag, gravity scale, material
  • 4. Collision layers and masks (who collides with whom)
  • Pitfalls
  • References
  • Related skills

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