<Section title='What Skills Are'>Skills are extensions that give AI agents specific abilities beyond their base capabilities. In the channel's material they appear as a first-party, well-supported library in OpenAI's Codex app — extensions that give agents specific abilities, created not through a setup wizard but simply by chatting with the app: you say what you want it to do, and it works.[^LfPNaoYMaRY@170] [^LfPNaoYMaRY@194]</Section><Section title='How Skills Are Used Across Products'>- Codex app: Skills are one of the core components, alongside threads and workspaces. Paired with the new app experience, agent skills made running multiple agents inviting even for less technical people, opening the browser and connecting to various services.[^AFHiiL-ZKms@181] [^AFHiiL-ZKms@256] Skills also combine with automations, which run a prompt on a schedule — like cron jobs for agents. One example: a skill that folds development takeaways into an agents.md file, running automatically.[^LfPNaoYMaRY@215] [^LfPNaoYMaRY@226]- Claude Co-work: Skills installed in Claude load automatically into Co-work, and an Anthropic team member on-stream named skills the primary hackable surface of the product.[^01a0f15a-b23f-7d11-980f-dc3f7e8fc4b6@2685] The practical advice from the episode: personalize with skills — capture a style or workflow (a deep-research output format, a proofreader, even a 3D-print pipeline) and make a skill out of it.[^01a0f15a-b23f-7d11-980f-dc3f7e8fc4b6@4260]- Dia (The Browser Company): Custom skills let users build AI-driven apps tailored to specific tasks, part of Dia's application platform layered on top of its memory system.[^242d36d6-cc1c-5d68-8d5d-6b26e8e467a1]</Section><Section title='Why It Matters'>Across all three products, skills represent the same shift: instead of configuring agents through settings or code, users package a workflow once and reuse it. Skills turn one-off agent behavior into a durable, shareable capability — whether that's a proofreader, a scheduled documentation updater, or a browser app for a specific task.</Section><KeyPoints>- Skills are extensions that give agents specific abilities, created by chatting rather than configuring.[^LfPNaoYMaRY@194]- In the Codex app, skills pair with automations to schedule agent work like cron jobs.[^LfPNaoYMaRY@215]- In Claude Co-work, skills auto-load from Claude and are called the primary hackable surface.[^01a0f15a-b23f-7d11-980f-dc3f7e8fc4b6@2685]- In Dia, custom skills are an application platform for task-specific AI tools.[^242d36d6-cc1c-5d68-8d5d-6b26e8e467a1]</KeyPoints>