Borrowing it
Nothing to install: this file belongs to Cotal-AI/Cotal. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Cotal-AI/Cotal/main/.claude/skills/pixel-face/SKILL.mdgit clone --depth 1 https://github.com/Cotal-AI/CotalWrote 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.
[](https://agentmods.dev/skills/cotal-ai/cotal/pixel-face)<a href="https://agentmods.dev/skills/cotal-ai/cotal/pixel-face"><img src="https://agentmods.dev/badge/skills/cotal-ai/cotal/pixel-face.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00138 | $0.01754 |
| Opus 5 | $0.00069 | $0.00877 |
| Sonnet 5 | $0.00028 | $0.00351 |
| Haiku 4.5 | $0.00014 | $0.00175 |
Grade A, and why
pixel-face 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 8d 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.
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.
How it starts
The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
pixel-face — author & refine the Frontier Faces pixel art
A persona face is pure data in examples/04-frontier-faces/personas.mjs (one entry per
persona). The same data drives the terminal renderer (face-term.mjs), the browser element
(web/cotal-face.js), and the PNG tool — so edit personas.mjs once and it's live everywhere.
Always work from examples/04-frontier-faces/.
Where things are
personas.mjs— the entries (rows, colors, glow, mouths, expr, eyes, lines). Single source of truth.FACE-DESIGN.md— the full conventions (grid zones, color keys, eye recipe, visemes). Read it first.tools/img2rows.mjs— rough a reference photo into a 32×32rows+palette.tools/render-png.mjs— render a 7-state contact sheet (PNG) for review. This is the validator.tools/face-template.mjs— copy-me starter entry that encodes the conventions.gallery.html(all personas, original-vs-pixel) andpreview.html?p=<key>(one persona) — served viapython3 -m http.serverortools/serve-wall.mjs; for visual QA.assets/<persona-key>.<ext>— reference photos. Gitignored / local-only — never commit them.
Persona key ≠ agent name. The roster uses agent-file basenames; the face comes from each agent's
face: frontmatter: elon→musk, steve→jobs, rayan→ray (others match). Persona keys:
neon david ray sven garry jobs musk dario mira bernie michelle.
Conventions (condensed — full detail in FACE-DESIGN.md)
- Grid 32×32,
.= transparent, face centered ~col 15. Zones: hair 1–9 · brows 10–11 (drawn byexpr, notrows) · eyes 12–13 (drawn byeyes()) · nose 14–16 · mouth 18–20 (drawn bymouths) · chin 21–24 · collar 26–31. - Color keys: skin
Plight /Smid /sshadow ·Epupil ·W/wcatchlight ·Rlip ·mlip-shadow ·bbrow ·hhair ·Lcyan +Mmagenta = the cotal glow ribbon (glow: { L: 8, M: 6 }blurs them). Userng(row, c1, c2, key)(exported from personas.mjs) for runs. - Eye recipe: 2-wide iris (
E) on the iris row; row below = catchlight (W/w, OUTER corner)- lid-shadow (
s, INNER).jobsis the "alive" benchmark — match its eye, don't use flat black blocks.
- lid-shadow (
- Surprise = raised brows + open mouth, eyes stay
open(growing the iris behind glasses looks wrong). Don't reintroduce awideeye style. - The face renders at a fixed 32×16 (not scaled to the pane), so faces look the same size as long as the pane is ≥ ~32 cols.
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.
- 8d ago First seen · 85 lines · 138 tokens per session scan A 82c3fe3f44e1
pixel-face is a skill published in the GitHub repository Cotal-AI/Cotal (261 stars, last pushed yesterday), licensed Apache-2.0. It adds 138 tokens to every session and 1,754 once invoked, about $0.0007 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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