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283283The Agent SDK gives you access to several ways to extend your agent's behavior. If you're unsure which to use, this table maps common goals to the right approach.
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285| You want to... | Use | SDK surface |
285| What you want to do | Use | SDK surface |
286286| :------------------------------------------------------------------------------------------------ | :-------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------- |
287287| Set project conventions your agent always follows | [CLAUDE.md](/docs/en/memory) | `settingSources: ["project"]` loads it automatically |
288288| Give the agent reference material it loads when relevant | [Skills](/docs/en/agent-sdk/skills) | `settingSources` + `skills` option |