anthias-viewer

anthias-viewer is a skill for Claude Code from Screenly/Anthias. It costs 102 tokens per session (5,251 once invoked), scanned A, original, no licence file.

A reference guide to Anthias, a digital-signage application built with Django, ASGI, Redis, SQLite, and media playback components. It describes how the viewer and server work internally.

In plain words
What is it for?
Use it when working on Anthias viewer behavior, server communication, playlists, media imports, remote media, audio, or webview features.
Why use it?
It helps developers understand the system before changing it or investigating failures such as memory exhaustion, streaming problems, upload rejection, or misleading error reports.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

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/screenly/anthias/anthias-viewer
Any agent
npx skills add Screenly/Anthias --skill anthias-viewer
Clone the repo
git clone --depth 1 https://github.com/Screenly/Anthias

Made for: Claude Code.

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 anthias-viewer

README.md
[![agentmods](https://agentmods.dev/badge/skills/screenly/anthias/anthias-viewer.svg)](https://agentmods.dev/skills/screenly/anthias/anthias-viewer)
Your own site
<a href="https://agentmods.dev/skills/screenly/anthias/anthias-viewer"><img src="https://agentmods.dev/badge/skills/screenly/anthias/anthias-viewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,251 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00102 $0.05251
Opus 5 $0.00051 $0.02625
Sonnet 5 $0.00020 $0.01050
Haiku 4.5 $0.00010 $0.00525

Measured yesterday against content hash 395b0bf7e7ed, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

anthias-viewer 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.

.claude/skills/anthias-viewer/SKILL.md · 94 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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 First seen · 94 lines · 102 tokens per session scan A 395b0bf7e7ed

Subscribe to this mod's changes

anthias-viewer is a skill published in the GitHub repository Screenly/Anthias (3,658 stars, last pushed 2d ago), with no licence file. It adds 102 tokens to every session and 5,251 once invoked, about $0.0005 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 2026-09-04.

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