context-os: Skill for Claude Code

.claude/skills/quickstart/SKILL.md

quickstart is a skill for Claude Code from jacob-dietle/context-os. It costs 107 tokens per session (1,587 once invoked), scanned C, original, MIT.

A guided setup process for building a Context OS, a linked knowledge-base system that preserves information across AI sessions and helps it build on earlier work.

In plain words
What is it for?
Use it to initialize the folders, configuration, first knowledge entries, and verification steps for a new or existing collection of notes and documents.
Why use it?
It gives a new system a clear starting structure and checks whether stored knowledge can be reused and connected over time.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions CLAUDE.md.

This is jacob-dietle/context-os's own configuration. It tells Claude Code how to work on context-os 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 context-os configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jacob-dietle/context-os. 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/jacob-dietle/context-os/main/.claude/skills/quickstart/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jacob-dietle/context-os

Made for: Claude Code.

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 quickstart

README.md
[![agentmods](https://agentmods.dev/badge/skills/jacob-dietle/context-os/quickstart/github.svg)](https://agentmods.dev/skills/jacob-dietle/context-os/quickstart)
Your own site
<a href="https://agentmods.dev/skills/jacob-dietle/context-os/quickstart"><img src="https://agentmods.dev/badge/skills/jacob-dietle/context-os/quickstart/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 quickstart

Your own site · 80×15
<a href="https://agentmods.dev/skills/jacob-dietle/context-os/quickstart"><img src="https://agentmods.dev/badge/skills/jacob-dietle/context-os/quickstart.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,587 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 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 $0.00107 $0.01587
Opus 5.5 $0.00043 $0.00635
Sonnet 5.5 $0.00021 $0.00317
Haiku 4.5 $0.00011 $0.00159

Measured 2mo ago against content hash 1e0f2b0935f4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

quickstart scanned grade C with 2 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 2mo 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

- macOS/Linux: `curl -fsSL https://install.tastematter.dev/install-context-os.sh | bash`

Makes network callslowCapability

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

- macOS/Linux: `curl -fsSL https://install.tastematter.dev/install-context-os.sh | bash`
.claude/skills/quickstart/SKILL.md · 190 lines

How it starts

The opening of the file, as written. The whole thing — 190 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Context OS Quickstart

Walk the user through building their first context operating system — a structured knowledge graph where AI compounds intelligence over time.

Approach

Be adaptive. Meet users where they are. Context OS is emergent architecture — it only works with real content to compound. A one-off demo transformation is meaningless.

Step 0: Assess Starting Point

FIRST, before any welcome message, check two things:

  1. Check if context-os CLI is installed: Run context-os --version. If it fails, tell the user: "The context-os CLI is required for graph queries and file heat tracking. Install it first:

    • macOS/Linux: curl -fsSL https://install.tastematter.dev/install-context-os.sh | bash
    • Windows: irm https://install.tastematter.dev/install-context-os.ps1 | iex Then start the Context OS quickstart again." Stop here if CLI is not installed.
  2. List the target directory and look for existing content: transcripts, docs, notes, raw files

If directory is empty or doesn't exist: → Go to Step 1A (Blank Slate)

If directory has content: → Go to Step 1B (Existing Content)

Step 1A: Blank Slate Flow

"Welcome to Context OS Quickstart.

I'm going to help you build a system where your AI compounds intelligence over time — no more repeating context every session.

Important: Context OS is emergent architecture. It only works when you have real content to ingest. We need YOUR transcripts, docs, notes, or emails.

Two questions:

  1. What's this context OS for?

    • GTM / Sales (deals, prospects, positioning)
    • Product (specs, decisions, technical knowledge)
    • Research (notes, papers, insights)
    • Something else?
  2. What content do you have to seed it?

    • Meeting transcripts?
    • Documents or specs?
    • Notes or emails?
    • Where are these files located?"

Wait for response. Must have content source identified before proceeding.

Step 1B: Existing Content Flow

"Welcome to Context OS Quickstart.

Read the full file on GitHub · 190 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. 2mo ago First seen · 190 lines · 107 tokens per session scan C 1e0f2b0935f4

Subscribe to this mod's changes

quickstart is a skill published in the GitHub repository jacob-dietle/context-os (115 stars, last pushed 2mo ago), licensed MIT. It adds 107 tokens to every session and 1,587 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

quickstart compared with skills from other repositories

quickstart next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
quickstartjacob-dietle/context-osSkill1152mo agoMITC107Claude Code
knowledge-ingestopenclaw/openclawSkill394kyesterdayMITA80Claude Code, Codex
mem0-oss-to-platformmem0ai/mem0Skill68k2d agoApache-2.0A217Claude Code, Codex
forgetasgeirtj/system_prompts_leaksSkill71k2d agoCC0-1.0A74Claude Code, Codex
Cortexdanielmiessler/LifeOSSkill20kyesterdayMITA184Claude Code
memoryopensquilla/opensquillaSkill7.1k6d agoApache-2.0A44Claude Code, Codex
ha-data-storesshiwenwen/hope-agentSkill1.9kyesterdayMITA115Claude Code, Codex