Hermes

Hermes is a skill for Claude Code, Codex from danielmiessler/LifeOS. It costs 0 tokens per session (1,777 once invoked), scanned A, original, MIT.

An observability and diagnosis tool for a Hermes sidecar, a supporting service that runs tasks and keeps records about them. It reads health data, logs, sessions, traces and guard records from the live installation.

In plain words
What is it for?
Use it to check service health, inspect failures and sessions, trace a task from start to finish, analyse logs and guard events, and detect configuration or identity drift.
Why use it?
It helps explain whether the service is running, why a task failed and what happened during its execution without changing configuration or restarting anything during diagnosis.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to check service health, inspect failures and sessions, trace a task from start to finish, analyse logs and guard events, and detect configuration or identity drift.

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Install with agentmods
npx agentmods add skills/danielmiessler/lifeos/hermes
About the project

LifeOS is an AI-assisted personal operating system that records a person’s goals, values, context, and current situation to help move them toward a desired future state. It supports work such as building applications, starting businesses, and creative projects. Its catalogue entries extend the system through skills, hooks, agents, and commands.

danielmiessler/LifeOS · 19,637 stars · on GitHub · ourlifeos.ai

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 danielmiessler/LifeOS --skill hermes
Clone the repo
git clone --depth 1 https://github.com/danielmiessler/LifeOS

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.

agentmods badge for Hermes

README.md
[![agentmods](https://agentmods.dev/badge/skills/danielmiessler/lifeos/hermes/github.svg)](https://agentmods.dev/skills/danielmiessler/lifeos/hermes)
Your own site
<a href="https://agentmods.dev/skills/danielmiessler/lifeos/hermes"><img src="https://agentmods.dev/badge/skills/danielmiessler/lifeos/hermes/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.

agentmods 80×15 button for Hermes

Your own site · 80×15
<a href="https://agentmods.dev/skills/danielmiessler/lifeos/hermes"><img src="https://agentmods.dev/badge/skills/danielmiessler/lifeos/hermes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,777 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 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 $0.00000 $0.01777
Opus 5.5 $0.00000 $0.00711
Sonnet 5.5 $0.00000 $0.00355
Haiku 4.5 $0.00000 $0.00178

Measured 2d ago against content hash fe37889aacdd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Hermes 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 2d 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.

LifeOS/install/skills/Hermes/SKILL.md · 76 lines

How it starts

The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Hermes

Observability over a mounted Hermes sidecar. The sidecar keeps its own records (session store, cron execution history, error logs, guard audit trail), and this skill turns them into answers: is it healthy, what failed and why, and exactly what happened inside one task.

Everything runs against the live install at $HERMES_HOME (default ~/.hermes) through deterministic tools in LIFEOS/HERMES/: Observe.ts status|failures|sessions|trace (the aggregator: sessions, failure classes, end-to-end traces), Health.ts (process health: up/degraded/flapping/down/absent, per-channel state), LogAnalysis.ts [--days N] (guard audit trail: hot rules, retry loops, taint findings) and Mount.ts --check (identity/config drift, report-only). Diagnosis mutates nothing: no config writes, no restarts, no cron edits. The Update intent is the one place the sidecar changes. Fixes route through Policy.ts + Mount.ts (the mount owns config), never hand-edits.

Ideal State

  • Every answer about the sidecar is grounded in its own records through the LIFEOS/HERMES/ tools, and success is judged from traces, never from an execution status.
  • Whether sessions actually load the LifeOS soul is always answered, and a blocked soul leads any report it appears in.
  • Every failure or fix names its owner (Policy.ts or soul sources plus a re-mount, the approval allowlist, or upstream Hermes) and the sidecar is never mutated by a diagnosis.

Intent Routing

Intent Trigger File
Status "hermes status", "is hermes healthy", "is the sidecar running LifeOS" Intents/Status.md
Triage "why do hermes tasks fail", "hermes failures", "triage hermes" Intents/Triage.md
Trace "trace that task", "what happened to my message", "show me that hermes session" Intents/Trace.md
Update "update hermes", "upgrade hermes", "is hermes up to date" Intents/Update.md
File Read when
Setup.md first-time setup: installing and mounting the optional sidecar the skill observes, and a read-only check

Read the full file on GitHub · 76 lines

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 76 lines · 0 tokens per session scan A fe37889aacdd

Subscribe to this mod's changes

Hermes is a skill published in the GitHub repository danielmiessler/LifeOS (19,637 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,777 tokens. 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 2026-10-28.

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