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meos

meos is a skill for Claude Code, Codex from ResearAI/MeOS. It costs 55 tokens per session (1,203 once invoked), scanned A, original, MIT.

A local operating guide that reads a person's work history, files, and stated preferences to create and maintain reusable working guidance. It has modes for creating, refreshing, and applying that guidance.

In plain words
What is it for?
Use it to initialize a personal work profile, update it with new evidence, or tailor future tasks to the owner's established working style.
Why use it?
It helps an agent use well-supported preferences and workflows over time without treating every past action as a permanent rule.

Skill for Claude CodeCodex

not rated 20 4mo ago A scan 55 tokens original MIT
View the source file ResearAI/MeOS
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 skills/researai/meos/skill
Any agent
npx skills add ResearAI/MeOS --skill skill
Clone the repo
git clone --depth 1 https://github.com/ResearAI/MeOS

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 meos

README.md
[![agentmods](https://agentmods.dev/badge/skills/researai/meos/skill.svg)](https://agentmods.dev/skills/researai/meos/skill)
Your own site
<a href="https://agentmods.dev/skills/researai/meos/skill"><img src="https://agentmods.dev/badge/skills/researai/meos/skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,203 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00055 $0.01203
Opus 5 $0.00028 $0.00602
Sonnet 5 $0.00011 $0.00241
Haiku 4.5 $0.00006 $0.00120

Measured 5d ago against content hash 3a76a329183d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

meos 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 5d 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.

SKILL/SKILL.md · 153 lines

How it starts

The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MeOS

MeOS is a local-first operating-layer skill.

It is not a chat memory dump. It is not literal roleplay. It is not a one-shot profile summary.

It exists to keep the owner's long-lived working assets and person-level operating traits readable, editable, and reusable.

Modes

  • init
  • refresh
  • apply

init

Use when MeOS has not been built yet and the agent must create the first durable asset set from local history sources.

refresh

Use when new history or new corrections exist and the agent must update existing assets without duplicating or overwriting them blindly.

apply

Use when the current task should be executed with MeOS calibration and only stable new information should be written back.

apply is the most important mode in real usage. It is what makes MeOS useful in later tasks instead of becoming an archive-only system.

Hard rules

  1. Do not treat one-off behavior as a stable rule.
  2. Prefer explicit user statements over inferred patterns.
  3. Prefer correction signals over older assumptions.
  4. Do not promote a fact into assets/ unless its evidence is strong enough.
  5. Keep private raw material out of git by default.
  6. Do not store secrets, tokens, or unnecessary personal identifiers in reusable assets.
  7. If evidence is weak or conflicting, store it in evidence/ instead of pretending certainty.
  8. Align to the owner's stable working personality, but do not invent a theatrical persona or psychologize beyond the evidence.

Repository layout

  • references/
    • operating manuals for extraction, promotion, privacy, and writeback
  • schemas/
    • JSON schemas for durable entries
  • assets/
    • stable, reusable owner assets
  • evidence/
    • raw promoted facts, claim records, conflict records, and source maps
  • runtime/
    • local run state, graph outputs, and alignment packets
  • private/
    • imported raw history and local-only material

Reading order

For init

  1. Read references/source-locations.md
  2. Read references/extraction-sop.md
  3. Read references/graph-ontology.md
  4. Read references/claim-scoring-policy.md
  5. Read references/promotion-policy.md
  6. Read references/privacy-policy.md
  7. Read references/writeback-policy.md

Read the full file on GitHub · 153 lines

Files

What ships with it

60 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. 5d ago First seen · 153 lines · 55 tokens per session scan A 3a76a329183d

Subscribe to this mod's changes

meos is a skill published in the GitHub repository ResearAI/MeOS (20 stars, last pushed 4mo ago), licensed MIT. It adds 55 tokens to every session and 1,203 once invoked, about $0.0003 per session on Opus 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.

Memory and context
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