Community · by addyosmani

Context engineering Claude skill

The Context engineering skill guides an AI assistant in deliberately choosing what an agent is shown, when, and how that information is organized.

MIT licence
★ 108,503 on GitHub (whole repository)
Verified against its source 19 Oct 2026

View SKILL.md Repository

What the Context engineering skill does

The assistant can establish rules files and project context that carry over between sessions, and pull in only the spec sections tied to a given feature. Typical triggers include launching a fresh session, noticing that the agent's results are getting worse, moving to a different task, or setting up rules files for a project. The skill also addresses keeping context volume under control and picking appropriate moments to begin a clean session.

What it covers

Creating persistent rules files such as CLAUDE.md
Managing context budget and trimming at 75% capacity

How to install it

In Claude Code

/plugin marketplace add addyosmani/agent-skills

/plugin install agent-skills@addy-agent-skills

This plugin also installs: api-and-interface-design, browser-testing-with-devtools, ci-cd-and-automation, code-review-and-quality, code-simplification, constraint-driven-development, debugging-and-error-recovery, deprecation-and-migration, documentation-and-adrs, doubt-driven-development, frontend-ui-engineering, git-workflow-and-versioning, idea-refine, incremental-implementation, interview-me, observability-and-instrumentation, performance-optimization, planning-and-task-breakdown, security-and-hardening, shipping-and-launch, source-driven-development, spec-driven-development, test-driven-development, using-agent-skills.

Steps change between versions. Check the official instructions before you install.