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claudekit-skills: Skill for Claude Code

.claude/skills/context-engineering/SKILL.md

context-engineering is a skill for Claude Code from mrgoonie/claudekit-skills. It costs 87 tokens per session (884 once invoked), scanned A, original, no licence file.

A set of practices for managing the information given to AI agents and language models while they work. It covers how context is organized, retained, shared, and evaluated in agent systems.

In plain words
What is it for?
Use it when designing AI agent architectures, memory systems, multi-agent workflows, language-model pipelines, or evaluations of agent performance.
Why use it?
It helps address lost or degraded context, excessive token use, weak memory, and coordination problems between agents.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is mrgoonie/claudekit-skills's own configuration. It tells Claude Code how to work on claudekit-skills 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 claudekit-skills configures →

not rated 2.2krepo +6 7mo ago A scan Socket: passSnyk: pass 87 tokens no licence
View source ↗ mrgoonie/claudekit-skills claudekit.cc
Reuse

Borrowing it

Nothing to install: this file belongs to mrgoonie/claudekit-skills. 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/mrgoonie/claudekit-skills/main/.claude/skills/context-engineering/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/mrgoonie/claudekit-skills

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 context-engineering

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/mrgoonie/claudekit-skills/context-engineering"><img src="https://agentmods.dev/badge/skills/mrgoonie/claudekit-skills/context-engineering.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 884 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. Third-party audits
  • Socket pass 15 Sept 2026
  • Snyk pass 15 Sept 2026
How audits are shown
Origin unknown 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 $0.00087 $0.00884
Opus 5.5 $0.00035 $0.00354
Sonnet 5.5 $0.00017 $0.00177
Haiku 4.5 $0.00009 $0.00088

Measured 2mo ago against content hash b02e54448e1f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

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 2mo ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/compression_evaluator.py, scripts/context_analyzer.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.claude/skills/context-engineering/SKILL.md · 87 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

16 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. 2mo ago First seen · 87 lines · 87 tokens per session scan A b02e54448e1f

Subscribe to this mod's changes

context-engineering is a skill published in the GitHub repository mrgoonie/claudekit-skills (2,235 stars, last pushed 7mo ago), with no licence file. It adds 87 tokens to every session and 884 once invoked, about $0.0003 per session on Opus 5.5. 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.

Building agentsMemory and context
Related

context-engineering compared with skills from other repositories

context-engineering next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
context-engineeringmrgoonie/claudekit-skillsSkill2.2k7mo agononeA87Claude 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