opensessions AGENTS.md

A set of project instructions for opensessions, including its purpose, structure, important design decisions, and rules that parts of the system must follow.

In plain words
What is it for?
Use it when working on the opensessions codebase and needing guidance about its architecture, layout, or required agreements between components.
Why use it?
It gives coding agents the project-specific context they need before changing the code.

Instructions file for CodexOpenCode

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 instructions/ataraxy-labs/opensessions/agents-md
Clone the repo
git clone --depth 1 https://github.com/Ataraxy-Labs/opensessions

Made for: Codex, OpenCode.

Per session 1,801 This file is loaded in full into every session.
When invoked 1,801 The same file — it is already loaded in full.
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 $0.01801 $0.01801
Opus 5 $0.00901 $0.00901
Sonnet 5 $0.00360 $0.00360
Haiku 4.5 $0.00180 $0.00180

Measured 3d ago against content hash 2d82813ecd8c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

opensessions AGENTS.md 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 3d 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.

Makes network callslowCapability

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

curl -X POST http://127.0.0.1:<port>/api/agent-event \
AGENTS.md · 126 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. 3d ago First seen · 126 lines · 1,801 tokens per session scan A 2d82813ecd8c

Subscribe to this mod's changes

opensessions AGENTS.md is an instructions file published in the GitHub repository Ataraxy-Labs/opensessions (1,221 stars, last pushed 2mo ago), with no licence file. It adds 1,801 tokens to every session, about $0.0090 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 2026-08-30.