What is hermes-s6-container-supervision?

A guide to s6-overlay, a process supervisor used inside a Docker container, for managing Hermes services and startup scripts.

It helps add or remove supervised services, debug profile gateways, modify boot scripts, and change the container’s startup behavior.

It explains how container processes start, restart, and receive configuration, making service failures easier to diagnose and changes safer to make.

hermes-s6-container-supervision — Skill by AmineDjeghri

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.

Any agent

npx skills add AmineDjeghri/personal-os-setup --skill hermes-s6-container-supervision

Clone the repo

git clone --depth 1 https://github.com/AmineDjeghri/personal-os-setup

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/aminedjeghri/personal-os-setup/hermes-s6-container-supervision/github.svg)](https://agentmods.dev/skills/aminedjeghri/personal-os-setup/hermes-s6-container-supervision)

Your own site

<a href="https://agentmods.dev/skills/aminedjeghri/personal-os-setup/hermes-s6-container-supervision"><img src="https://agentmods.dev/badge/skills/aminedjeghri/personal-os-setup/hermes-s6-container-supervision/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/aminedjeghri/personal-os-setup/hermes-s6-container-supervision"><img src="https://agentmods.dev/badge/skills/aminedjeghri/personal-os-setup/hermes-s6-container-supervision.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,993 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 89% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00043	$0.02993
Opus 5.5	$0.00017	$0.01197
Sonnet 5.5	$0.00009	$0.00599
Haiku 4.5	$0.00004	$0.00299

Measured 18d ago against content hash a151656638c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hermes-s6-container-supervision 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 18d 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.

Origin

This is a copy

89% identical to hermes-s6-container-supervision — 12 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

src/personal_os_setup/config/chezmoi/dot_hermes/skills/software-development/hermes-s6-container-supervision/SKILL.md · 178 lines

How it starts

The opening of the file, as written. The whole thing — 178 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hermes s6-overlay Container Supervision

When to use this skill

Load this skill when you're working on:

Adding or removing a static service in the Hermes Docker image (something that should be supervised at every container start, like the dashboard)
Diagnosing why a per-profile gateway isn't starting, restarting, or surviving docker restart
Understanding why the container's CMD is /opt/hermes/docker/main-wrapper.sh and how leading-dash args reach the user's program
Modifying cont-init.d boot scripts (UID remap, volume seeding, profile reconciliation)
Changing the rendered run-script for per-profile gateways (Phase 4)

If you're just running the Hermes Agent and want to use Docker, see website/docs/user-guide/docker.md instead.

Architecture at a glance

/init                                  ← PID 1 (s6-overlay v3.2.3.0)
├── cont-init.d                        ← oneshot setup, runs as root
│   ├── 01-hermes-setup                ← docker/stage2-hook.sh
│   │   ├── UID/GID remap
│   │   ├── chown /opt/data
│   │   ├── chown /opt/data/profiles (every boot)
│   │   ├── seed .env / config.yaml / SOUL.md
│   │   └── skills_sync.py
│   └── 02-reconcile-profiles          ← hermes_cli.container_boot
│       ├── chown /run/service (hermes-writable for runtime register)
│       └── walk $HERMES_HOME/profiles/<name>/gateway_state.json
│           → recreate /run/service/gateway-<name>/
│           → auto-start only those with prior_state == "running"
│
├── s6-rc.d (static services, in /etc/s6-overlay/s6-rc.d/)
│   ├── main-hermes/run                ← exec sleep infinity (no-op slot)
│   └── dashboard/run                  ← if HERMES_DASHBOARD=1, runs `hermes dashboard`
│
├── /run/service (s6-svscan watches; tmpfs)
│   ├── gateway-coder/                 ← runtime-registered per-profile
│   │   ├── type        ("longrun")
│   │   ├── run         ("#!/command/with-contenv sh ... exec s6-setuidgid hermes hermes -p coder gateway run")
│   │   ├── down        (marker — present means "registered but don't auto-start")
│   │   └── log/run     (s6-log → $HERMES_HOME/logs/gateways/coder/current)
│   └── ...
│
└── CMD ("main program")               ← /opt/hermes/docker/main-wrapper.sh
    └── routes user args: bare exec | hermes subcommand | hermes (no args)
        — exec'd by /init with stdin/stdout/stderr inherited (TTY for --tui)

Read the full file on GitHub · 178 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.

18d ago Changed · +1 lines a151656638c5
27d ago First seen · 177 lines · 43 tokens per session scan A 14d423147465

Subscribe to this mod's changes

hermes-s6-container-supervision is a skill published in the GitHub repository AmineDjeghri/personal-os-setup (654 stars, last pushed today), licensed MIT. It adds 43 tokens to every session and 2,993 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 89% identical to hermes-s6-container-supervision, differing in 12 lines, and is treated as a copy.

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hermes-s6-container-supervision