Add a provider, capability, preset or profile feature
Pick by what is asked and read the doc and the example COMPLETELY first: a new model provider {{pack}}/docs/extending/llm-adapter.md (example llm-adapter-echo); interchangeable implementations {{pack}}/docs/extending/three-role-capability.md; an agent preset or persona {{pack}}/docs/extending/agent-preset.md; profile, pnpm or live activation {{pack}}/docs/extending/desktop-main.md. If unsure which mechanism fits read {{pack}}/docs/extending/cordis-core.md. Never put a secret in a package file or chat. Verify, install, and report the status; say plainly what you could not verify (for example a provider that needs a real key).