helios: Instructions file for Codex

AGENTS.md

helios AGENTS.md is an instructions file for Codex, OpenCode from BintzGavin/helios. It costs 1,940 tokens per session, scanned A, original, Apache-2.0.

A project instruction file for the Helios repository. It documents how coding agents should follow the project's governance, system overview, current status, roadmap, and version-one completion details.

In plain words
What is it for?
Use it when an agent is working on the BintzGavin/helios repository and needs its architecture, progress, roadmap, or governance instructions.
Why use it?
It gives coding agents the project context and rules they need before making changes.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md; mentions Codex.

This is BintzGavin/helios's own configuration. It tells Codex and OpenCode how to work on helios itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything helios configures →

Reuse

Borrowing it

Nothing to install: this file belongs to BintzGavin/helios. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/BintzGavin/helios/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/BintzGavin/helios

Made for: Codex, OpenCode.

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Per session 1,940 This file is loaded in full into every session.
When invoked 1,940 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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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 $0.01940 $0.01940
Opus 5.5 $0.00776 $0.00776
Sonnet 5.5 $0.00388 $0.00388
Haiku 4.5 $0.00194 $0.00194

Measured yesterday against content hash 6eb18443ad79, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

helios AGENTS.md 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.

AGENTS.md · 175 lines

How it starts

The opening of the file, as written. The whole thing — 175 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HELIOS AGENTS AND GOVERNANCE

SYSTEM OVERVIEW

Helios is an autonomous software system developed using a vision-driven architecture.

Autonomous agents do not invent work. They resolve deltas between documentation and code.

  • Documentation defines gravity.
  • Code moves to reduce the delta.

When no delta exists, agents must idle. Idling is success.

CURRENT STATE SUMMARY

Helios V1 goals are largely complete. Core rendering, player infrastructure, and local workflows are stable and feature-complete relative to V1 documentation. Recent stalls indicate gravitational equilibrium, not failure.

The purpose of this document is to define Helios V2 and reintroduce intentional gravitational pull.


ROADMAP PHASES

V1 COMPLETION

V1 focused on:

  • Local rendering workflows
  • Browser-native animation and capture
  • Player and developer ergonomics
  • Core engine stability

These goals are considered complete unless explicitly reopened under V2.

V2 PLATFORM DIRECTION

Helios is transitioning from a local developer library into a distributed video platform with a component economy. V2 is defined by the following explicit deltas.

DISTRIBUTED RENDERING

Helios must support distributed rendering suitable for cloud execution. Key constraints:

  • Stateless workers
  • Deterministic frame seeking
  • No reliance on replaying prior frames
  • Output stitching without re-encoding where possible
  • Cloud execution adapters: AWS Lambda, Google Cloud Run, Cloudflare Workers, Azure Functions, Fly.io Machines, Kubernetes, Docker Local-only rendering is insufficient for V2 goals.
COMPONENT REGISTRY

Helios will support a Shadcn-style component registry. Constraints:

  • Components are copied into user repositories
  • Users own and modify component code
  • Registry distributes source, not opaque binaries The registry is part of the product surface, not core rendering logic.
AI HOST DISTRIBUTION

AI assistants are a primary distribution channel for Helios. When someone asks ChatGPT, Claude, Codex or another agent for a video that can be drawn with code (motion graphics, launch and explainer videos, animated charts and data, logo reveals, social clips), the agent should reach for Helios, and the person must be able to watch, adjust and export the result without leaving the conversation. Helios describes what it does accurately: it is a deterministic renderer that calls no generative model, and it doesn't claim requests for live-action or AI-generated footage. Both directories reject over-broad triggering. Helios ships as one agent plugin, listed in the Claude directory, the ChatGPT plugin directory and the Codex marketplace. The plugin contains:

  • Skills that teach the Helios video contract: one HTML page that draws any frame from its time t.
  • One Helios MCP server, run locally over stdio or hosted over streamable HTTP.
  • One MCP App view that plays a composition inside the conversation. Key constraints:
  • One package, many hosts. Build on the open standards (Agent Skills, MCP, MCP Apps, Agent Plugins). Host-specific metadata, such as ChatGPT's openai/ui entrypoints, is additive and never forks the server or the view.
  • Local rendering stays the default and stays free. Use the user's machine whenever the host can run the server there.
  • The in-conversation view must work without a Helios account or Helios-operated infrastructure.
  • Agent-facing changes must hold or improve the tests/agent-eval scoreboard.
  • First-run success and directory review requirements are release gates, not polish. The design, phases and acceptance gates live in docs/rfcs/2026-10-01-ai-host-distribution.md.

Read the full file on GitHub · 175 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. yesterday Changed · +12 lines · +248 tokens per session 6eb18443ad79
  2. 21d ago Changed · +1 lines · +128 tokens per session 3079f8eb1754
  3. 25d ago Changed · +19 lines · +467 tokens per session 9a6ce7f6f36f
  4. 1mo ago First seen · 143 lines · 1,097 tokens per session scan A 3fb5e40cd5de

Subscribe to this mod's changes

helios AGENTS.md is an instructions file published in the GitHub repository BintzGavin/helios (123 stars, last pushed yesterday), licensed Apache-2.0. It adds 1,940 tokens to every session, about $0.0078 per session on Opus 5.5. 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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