uloop-simulate-keyboard

A Unity PlayMode tool for sending keyboard presses, holds, and releases through Unity's Input System. PlayMode is Unity's mode for running a game inside the editor.

In plain words
What is it for?
Triggering taps such as jumping, holding movement or sprint keys, and releasing keys such as W, A, S, D, Space, Shift, or Enter.
Why use it?
It lets automated checks and reproductions control game actions without a person pressing keys. Separate key-down and key-up actions also allow controls to remain held for a chosen period.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/hatayama/unity-cli-loop/uloop-simulate-keyboard
Any agent
npx skills add hatayama/unity-cli-loop --skill uloop-simulate-keyboard
Clone the repo
git clone --depth 1 https://github.com/hatayama/unity-cli-loop

Made for: Claude Code, Codex.

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,626 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00062 $0.01626
Opus 5 $0.00031 $0.00813
Sonnet 5 $0.00012 $0.00325
Haiku 4.5 $0.00006 $0.00163

Measured yesterday against content hash cf91db1335af, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

uloop-simulate-keyboard scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/uloop-simulate-keyboard/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Task

Simulate keyboard input on Unity PlayMode.

Workflow

  1. Ensure Unity is in PlayMode (use uloop control-play-mode --action Play if not)
  2. Execute the needed uloop simulate-keyboard commands
  3. Inspect the result with the lightest useful evidence: runtime state, logs, or a screenshot
  4. If exact-frame proof would reduce uncertainty, treat Pause Point inspection as an optional follow-up using the section below
  5. Report what happened and which evidence was used

Tool Reference

uloop simulate-keyboard --action <Press|KeyDown|KeyUp> --key <key> [options]
uloop simulate-keyboard --action ReleaseAll

Parameters

Parameter Type Default Description
--action enum Press Press - one-shot key tap (Down then Up), KeyDown - hold key down, KeyUp - release held key, ReleaseAll - force-release every tracked and device-pressed key (allowed while PlayMode is paused; use after a pause-point interruption leaves key state inconsistent)
--key string (required except ReleaseAll) Key name matching Input System Key enum (e.g. W, Space, LeftShift, A, Enter). Case-insensitive. Digit keys use Digit0-Digit9 or Numpad0-Numpad9, not bare 0-9. Not used by ReleaseAll.
--duration number 0 Hold duration in seconds for Press action (0 = one-shot tap, max 30). Ignored by KeyDown/KeyUp/ReleaseAll.

Actions

Action Behavior Use Case
Press KeyDown → wait → KeyUp One-shot tap (jump, use item)
KeyDown KeyDown only (held until KeyUp) Start continuous movement, hold sprint
KeyUp KeyUp only (release held key) Stop movement, release sprint
ReleaseAll Force-releases every tracked and device-pressed key (bookkeeping and Input System device state) Recover a clean keyboard state after a pause-point interruption

There is no separate hold action: to hold a key, use Press --duration <seconds> (fixed-time hold) or KeyDown followed later by KeyUp (open-ended hold).

Read the full file on GitHub · 103 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday Changed · +15 lines · +23 tokens per session cf91db1335af
  2. 2d ago First seen · 88 lines · 39 tokens per session scan A 5eff0ce277cc

Subscribe to this mod's changes

uloop-simulate-keyboard is a skill published in the GitHub repository hatayama/unity-cli-loop (522 stars, last pushed yesterday), licensed MIT. It adds 62 tokens to every session and 1,626 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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