Using skills

In ChatGPT, a skill is a reusable, shareable workflow — defined by a SKILL.md file — that tells ChatGPT how to consistently execute a specific task without starting from scratch each time. Skills are most effective for repeatable work involving multiple steps, strict formatting, or policy adherence, and can include supporting resources such as templates, examples, and tool access. They can be built directly within a ChatGPT chat, created externally and uploaded, and are based on an open, portable format that can be shared across tools and platforms that support the Agent Skills standard.

Using projects in ChatGPT
Personalizing ChatGPT
Using custom GPTs
Prompting fundamentals
Getting started with ChatGPT

Source: tutorials

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