auth-nodejs-cloudbase

1## Sibling skills (local only)
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3Sibling CloudBase skills ship beside this skill. Use local relative paths such as `../auth-tool-cloudbase/SKILL.md`.
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5If a referenced sibling skill file is missing from this environment, ask the user to install the full CloudBase plugin (or the missing skill). Do **not** HTTP-fetch remote skill or protocol markdown into the agent context.
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7## Activation Contract
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9### Use this first when
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11- Node.js code in cloud functions or backend services must read caller identity, look up users, or issue custom login tickets.
12- The backend responsibility is auth / identity, not provider setup or frontend login UI.
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14### Read before writing code if
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16- The task mentions `@cloudbase/node-sdk`, server-side auth, custom login tickets, or "who is calling".
17- The request mixes frontend login with backend identity logic; split the flow and route client-side work elsewhere.
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19### Then also read
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21- Provider setup / publishable key -> `../auth-tool-cloudbase/SKILL.md`
22- Web login UI that consumes custom tickets -> `../auth-web-cloudbase/SKILL.md`
23- Raw HTTP auth client -> `../http-api-cloudbase/SKILL.md`
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25### Do NOT use for
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27- Provider enable/disable or login console configuration.
28- Frontend login / sign-up UI.
29- Mini program native auth.
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31### Common mistakes / gotchas
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33- Using this skill as the entry point for every auth request.
34- Mixing provider-management work with Node-side identity code.
35- Reaching for raw HTTP examples when Node SDK already covers the job.
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