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It may get stuck, ask clarifying questions, or fill in plausible but wrong values.",et,b,Ht="Give the same agent authentication instructions, the dataset schema, the API format, and pointers to common pitfalls, and the task finishes faster and more reliably.",nt,$,qt="<p>Code agents are only as good as the context you give them.</p> <p>Context engineering is the practice of structuring that context so the agent can find and use it.</p>",lt,T,Ut="This principle runs through the rest of the course. It’s the same reason communities publish shared contexts and teams invest in keeping their documentation close to the agent.",it,_,st,P,Et="A <strong>skill</strong> is a self-contained package of knowledge that makes an agent good at one specific task. Skills are portable across projects and agents, reusable once installed, structured in a format agents can parse, and extensible through links to scripts and APIs.",at,L,Wt="A skill is essentially an onboarding document for an agent: the same kind of step-by-step guide you’d give a new colleague, but written so the agent can load it on demand.",ot,S,rt,M,Kt="Skills differ from long prompts in one key way: they are structured, reusable, and discoverable. They live beyond a single conversation and can be loaded only when relevant. The next lesson goes deeper on this.",pt,A,ut,H,zt="By the end of this unit, you’ll understand what skills are and why they matter, the Agent Skills Specification (the open standard for skill structure), the SKILL.md format, how to use skills with agents, how to build your first skill from scratch, and how to debug them when they don’t work.",mt,q,ft,U,It='There’s a formal standard for how skills are structured, called the <strong>Agent Skills Specification</strong>, maintained at <a href="https://agentskills.io" rel="nofollow">agentskills.io</a>.',ht,k,Ft="<p>The Agent Skills Specification defines a portable format for packaging agent knowledge, originally created by Anthropic and now adopted by 30+ code agents worldwide.</p>",gt,E,Ot="This spec ensures:",dt,W,jt="<li>Skills work across different agents and platforms</li> <li>Agents can automatically discover and load relevant skills</li> <li>Communities can share and improve skills together</li> <li>Tools and platforms can be built to support skill workflows</li>",ct,K,$t,z,Bt="Without skills, context engineering looks like long repetitive prompts in every conversation, scattered wiki pages, and team members rebuilding the same context independently. 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