context-engineering

A set of tools for organizing information, memory, prompts, and handoffs between AI agents.

In plain words
What is it for?
Use it to build an AI-focused knowledge base, manage context-window limits, and pass work between agents.
Why use it?
It helps agents keep important context available across long or multi-agent tasks instead of losing it in a crowded conversation.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add endorphin-ai/hasbrains-agent-kit
agentmods
npx agentmods add plugins/endorphin-ai/hasbrains-agent-kit/context-engineering
Clone the repo
git clone --depth 1 https://github.com/endorphin-ai/hasbrains-agent-kit

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

context-engineering 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.

context-engineering/.claude-plugin/plugin.json · 10 lines

What it actually says

{
  "name": "context-engineering",
  "version": "1.1.0",
  "description": "Context engineering for AI agents — AI-optimized second-brain skills, durable pipeline state for multi-agent handoffs, and expert prompt building.",
  "author": { "name": "Andrew Novykov", "url": "https://github.com/andrewnovykov" },
  "repository": "https://github.com/endorphin-ai/hasbrains-agent-kit",
  "license": "MIT",
  "keywords": ["claude-code", "context-engineering", "claude-md", "memory", "context-window", "prompt-engineering"]
}
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 · 10 lines scan A f3142a6f0c18

Subscribe to this mod's changes

context-engineering is a plugin published in the GitHub repository endorphin-ai/hasbrains-agent-kit (4 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-31.

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