write-zot-themes

write-zot-themes is a skill for Claude Code, Codex from patriceckhart/zot. It costs 23 tokens per session (2,259 once invoked), scanned A, original, MIT.

A guide for creating, installing, editing, debugging, and packaging zot color themes. A zot theme is a JSON file that changes selected colors or display settings while keeping other defaults.

In plain words
What is it for?
It helps create user themes and extension-owned themes, including files with colors, syntax colors, spinner settings, or metadata.
Why use it?
It explains where zot looks for themes and how missing settings inherit the built-in light or dark theme. This helps avoid incorrect file placement and unnecessary configuration.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It helps create user themes and extension-owned themes, including files with colors, syntax colors, spinner settings, or metadata.

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Install with agentmods
npx agentmods add skills/patriceckhart/zot/write-zot-themes
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.

Any agent
npx skills add patriceckhart/zot --skill write-zot-themes
Clone the repo
git clone --depth 1 https://github.com/patriceckhart/zot

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 write-zot-themes

README.md
[![agentmods](https://agentmods.dev/badge/skills/patriceckhart/zot/write-zot-themes/github.svg)](https://agentmods.dev/skills/patriceckhart/zot/write-zot-themes)
Your own site
<a href="https://agentmods.dev/skills/patriceckhart/zot/write-zot-themes"><img src="https://agentmods.dev/badge/skills/patriceckhart/zot/write-zot-themes/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for write-zot-themes

Your own site · 80×15
<a href="https://agentmods.dev/skills/patriceckhart/zot/write-zot-themes"><img src="https://agentmods.dev/badge/skills/patriceckhart/zot/write-zot-themes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,259 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00023 $0.02259
Opus 5 $0.00012 $0.01130
Sonnet 5 $0.00005 $0.00452
Haiku 4.5 $0.00002 $0.00226

Measured 12d ago against content hash 92a676079f48, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

write-zot-themes 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 12d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

packages/agent/skills/builtin/write-zot-themes/SKILL.md · 341 lines

How it starts

The opening of the file, as written. The whole thing — 341 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Writing zot themes

Use this skill when the user asks for help creating, editing, installing, debugging, or packaging a zot color theme. Read this skill before generating a theme file or advising on theme extension layout.

What a zot theme is

A zot theme is a JSON file that overrides any subset of zot's built-in light/dark theme values. Theme files are intentionally permissive: nothing is required. A file may contain only colors, only spinner settings, only syntax colors, or only metadata. Missing values always inherit from the built-in detected light/dark default.

User themes are discovered from:

$ZOT_HOME/themes/*.json

Extension themes are discovered in-place from loaded extension dirs:

$ZOT_HOME/extensions/<extension>/theme.json
$ZOT_HOME/extensions/<extension>/themes/theme.json
<project>/.zot/extensions/<extension>/theme.json
<project>/.zot/extensions/<extension>/themes/theme.json

zot does not copy extension themes into $ZOT_HOME/themes; extension owned themes stay in the extension directory. The settings picker stores an absolute path for extension-owned themes and loads that file directly.

Minimal examples

Empty / metadata-only theme

Valid; inherits all colors/spinner/syntax from zot defaults.

{
  "name": "my-theme",
  "description": "Metadata only; all visuals inherit zot defaults."
}

Change one color for both light and dark

{
  "name": "pink-accent",
  "colors": {
    "accent": 204
  }
}

Change one color per mode

{
  "name": "split-accent",
  "colors": {
    "dark": { "accent": 204 },
    "light": { "accent": 161 }
  }
}

Spinner-only theme

Top-level spinner overrides are valid and apply to both modes.

{
  "name": "custom-spinner",
  "description": "Only changes the busy spinner.",
  "spinner_frames": ["◢", "◣", "◤", "◥"],
  "spinner_messages": ["working"],
  "spinner_interval_ms": 120
}

Dark-only theme also works in light terminals

If colors.light is missing, zot applies colors.dark overrides on top of the built-in light default when running in light mode. The inverse is also true: if dark is missing but light exists, light settings are used on dark defaults.

Read the full file on GitHub · 341 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. 12d ago First seen · 341 lines · 23 tokens per session scan A 92a676079f48

Subscribe to this mod's changes

write-zot-themes is a skill published in the GitHub repository patriceckhart/zot (336 stars, last pushed yesterday), licensed MIT. It adds 23 tokens to every session and 2,259 once invoked, about $0.0001 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.