building-helios-frontends

A guide for extending a cloned Helios example app built with the @reactor-models/helios SDK. It describes the existing patterns for connections, events, messages, phase-based screens, and state snapshots.

In plain words
What is it for?
Use it to add controls, scenes, knobs, image flows, or other features to that Helios application.
Why use it?
It helps developers add features while following the structure already used by the example app.

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

Made for: Claude Code, Codex.

Per session 122 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,260 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00122 $0.09260
Opus 5 $0.00061 $0.04630
Sonnet 5 $0.00024 $0.01852
Haiku 4.5 $0.00012 $0.00926

Measured yesterday against content hash b5a7c2e987ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

building-helios-frontends scanned grade A 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

const blob = await fetch(scene.imageUrl).then((r) => r.blob());
convergence-cinema/skill/SKILL.md · 639 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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 · 639 lines · 122 tokens per session scan A b5a7c2e987ef

Subscribe to this mod's changes

building-helios-frontends is a skill published in the GitHub repository aashwindev/convergence (2 stars, last pushed 1mo ago), with no licence file. It adds 122 tokens to every session and 9,260 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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