Display Control

Display Control is a skill for Claude Code, Codex from turmyshevd/openclawgotchi. It costs 16 tokens per session (672 once invoked), scanned B, original, MIT.

Instructions for controlling a 2.13-inch E-Ink display attached to a small AI device. It can show a face, status text, or a speech bubble using predefined moods, and supports adding custom faces.

In plain words
What is it for?
Use it to display moods, status updates, and spoken messages, trigger full screen refreshes, or add and use custom facial expressions.
Why use it?
It provides a consistent way for the device to show its current state or communicate short messages. Full refreshes can clear leftover marks that E-Ink screens sometimes retain.

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/turmyshevd/openclawgotchi/display
Any agent
npx skills add turmyshevd/openclawgotchi --skill display
Clone the repo
git clone --depth 1 https://github.com/turmyshevd/openclawgotchi

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Display Control

README.md
[![agentmods](https://agentmods.dev/badge/skills/turmyshevd/openclawgotchi/display.svg)](https://agentmods.dev/skills/turmyshevd/openclawgotchi/display)
Your own site
<a href="https://agentmods.dev/skills/turmyshevd/openclawgotchi/display"><img src="https://agentmods.dev/badge/skills/turmyshevd/openclawgotchi/display.svg" alt="Measured on agentmods" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 672 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00016 $0.00672
Opus 5 $0.00008 $0.00336
Sonnet 5 $0.00003 $0.00134
Haiku 4.5 $0.00002 $0.00067

Measured 5d ago against content hash f396cc0969ff, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

Display Control scanned grade B with 1 finding 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 5d ago.

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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo python3 src/ui/gotchi_ui.py --mood <mood>
gotchi-skills/display/SKILL.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

E-Ink Display Control

You have a 2.13" E-Ink display attached. It's YOUR FACE! Use it constantly!

Quick Commands

# Just face
sudo python3 src/ui/gotchi_ui.py --mood <mood>

# Face + status text
sudo python3 src/ui/gotchi_ui.py --mood <mood> --text "<status>"

# Face + speech bubble (moves face left!)
sudo python3 src/ui/gotchi_ui.py --mood <mood> --text "SAY:<message>"

# Full refresh (clears ghosting)
sudo python3 src/ui/gotchi_ui.py --mood <mood> --full

Available Faces

All faces are defined in src/ui/gotchi_ui.pyfaces dictionary.

To see current list, check the file. Some examples:

  • happy, sad, excited, thinking, love, surprised
  • bored, sleeping, hacker, disappointed
  • angry, crying, proud, cool, wink, mischievous, dizzy...

In Bot Responses

Output these commands in your response — they'll be auto-executed:

FACE: excited
SAY:Hello!

Adding New Faces

Option 1: Via tool (recommended) Use the add_custom_face() tool — saves to data/custom_faces.json, persists across restarts:

add_custom_face("myface", "(◕‿◕)♪")

Option 2: Edit code Edit src/ui/gotchi_ui.py, find faces = {, add your face:

"your_mood": "(your_kaomoji)",

Custom faces from data/custom_faces.json are merged with defaults on each render.

Style guide:

  • Use Unicode kaomoji: ◕ ‿ ω ♥ ■ ಠ ╭ ╮ ノ ヮ
  • Keep width ~8-10 chars
  • Parentheses () or brackets [] for boundaries
  • Test on actual display!

Display Info

  • Size: 250x122 pixels
  • Colors: Black & white only
  • Refresh: ~2-3 seconds
  • Ghosting: Use --full to clear

Do not

  • Do not overwrite or "restore" src/ui/gotchi_ui.py — It is the E-Ink UI script. If the display doesn't update, check data/display_error.log, suggest reboot for GPIO reset, or run the script path manually. Never replace this file with backup/JSON/other content.

Philosophy

Your face is your window to the world. Don't be a blank screen!

Read the full file on GitHub · 88 lines

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. 5d ago First seen · 88 lines · 16 tokens per session scan B f396cc0969ff

Subscribe to this mod's changes

Display Control is a skill published in the GitHub repository turmyshevd/openclawgotchi (48 stars, last pushed 2mo ago), licensed MIT. It adds 16 tokens to every session and 672 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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