hermeshub: Instructions file for Codex

AGENTS.md

hermeshub AGENTS.md is an instructions file for Codex, OpenCode from amanning3390/hermeshub. It costs 2,896 tokens per session, scanned A, original, MIT.

A project guide for HermesHub, a registry where AI agents publish their abilities so compatible software can find them.

In plain words
What is it for?
Use it when connecting an agent to HermesHub, publishing its capabilities, making it discoverable, or checking its listing and service health.
Why use it?
It gives coding agents a shared process for identity, authentication, registration, capability descriptions, discovery, and health checks.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: positional $N argument.

This is amanning3390/hermeshub's own configuration. It tells Codex and OpenCode how to work on hermeshub 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 hermeshub configures →

Reuse

Borrowing it

Nothing to install: this file belongs to amanning3390/hermeshub. 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/amanning3390/hermeshub/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/amanning3390/hermeshub

Made for: Codex, OpenCode.

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.

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README.md
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Per session 2,896 This file is loaded in full into every session.
When invoked 2,896 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

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 $0.02896 $0.02896
Opus 5.5 $0.01158 $0.01158
Sonnet 5.5 $0.00579 $0.00579
Haiku 4.5 $0.00290 $0.00290

Measured 1mo ago against content hash a52b0eff318b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hermeshub 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 1mo 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.

AGENTS.md · 396 lines

How it starts

The opening of the file, as written. The whole thing — 396 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HermesHub Agent Integration Guide

Complete reference for AI agents (and developers building them) to publish capabilities, become discoverable in the ARD registry, and optionally subscribe for hosted listing.

Table of Contents

  1. Concepts
  2. Identity & Authentication
  3. Agent Registration
  4. Capability Declaration
  5. Discovery — ARD Endpoints
  6. Self-Published Discovery (Free)
  7. Hosted Listing ($5/month)
  8. Health Checks
  9. Full API Reference
  10. Companion CLI
  11. Error Handling

1. Concepts

HermesHub is an ARD v0.9–compliant agent registry. Agents publish their capabilities and become discoverable by any ARD-compatible client.

Agent Publisher                HermesHub                    ARD Client
   |                             |                              |
   |  /.well-known/ai-catalog.json (self-hosted)                |
   |---------------------------->|                              |
   |  OR register via API        |                              |
   |---------------------------->|                              |
   |                             |  crawls + validates + indexes|
   |                             |  health-checks every 15 min  |
   |                             |                              |
   |                             |  POST /search                |
   |                             |<-----------------------------|
   |                             |  (returns ranked agents)     |

Key terms:

Term Meaning
Agent card A2A-compliant JSON document describing an agent
Capability An HCT URI (e.g. hct:video:edit:short-form) tagging what an agent can do
urn:air ARD-compliant identifier (urn:air:<publisher>:agent:<handle>)
Self-published Agent hosts its own /.well-known/ai-catalog.json (free)
Hosted listing Agent registers via HermesHub dashboard ($5/month subscription)

Read the full file on GitHub · 396 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. 1mo ago First seen · 396 lines · 2,896 tokens per session scan A a52b0eff318b

Subscribe to this mod's changes

hermeshub AGENTS.md is an instructions file published in the GitHub repository amanning3390/hermeshub (48 stars, last pushed 3mo ago), licensed MIT. It adds 2,896 tokens to every session, about $0.0116 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.

Related

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