Claude 的 AI 人格：如何打造一個在職場中經得起考驗的 AI 人格

A written configuration that gives Claude one role, one working method, one voice and a set of rules it will not break. Saved as a SKILL.md file and uploaded, it applies automatically whenever your request matches what it was built for, instead of you re-explaining yourself each session.

A skill file is how a persona is packaged. The persona is the content: identity, voice, knowledge and behaviour rules. The file is the ZIP with a SKILL.md inside that lets Claude pick it up on its own when the task matches.

Write four blocks. Identity: role, seniority, and the two or three things it knows better than a generalist. Voice: tone, sentence style, banned phrases, format preferences. Knowledge: company, product, audience, differentiators, real objections. Behaviour: what it does with a vague brief, how it gives opinions, how it reviews work, and its hard limits. Save the four blocks as SKILL.md, zip the folder, and upload it under Customize then Skills in the Claude desktop app.

Yes, by pasting rather than uploading. Skills need code execution enabled, under Settings then Capabilities. Anthropic's help centre currently lists Skills on Free, Pro, Max, Team and Enterprise, while its Academy tutorial lists Pro, Max, Team and Enterprise, so if you are on the free plan check Settings then Capabilities for your own account rather than trusting either page. Where the Skills menu is not available you paste the persona into custom instructions or project instructions instead, which is also how you use it in ChatGPT or Gemini. The persona behaves the same; you just load it by hand each time rather than having Claude trigger it for you.

Long enough to cover identity, voice, knowledge and behaviour, and no longer. Around 300 to 800 words is typical. Padding a persona with invented backstory dilutes the instructions that actually change the output.

Three usual causes. It was written in adjectives rather than behaviours, so there is nothing concrete to act on. It has no refusals or banned phrases, so it drifts back to generic within a few exchanges. Or nobody updated the knowledge block after the positioning, product or objections changed.

Build if it depends on things only you know: your process, your accounts, your internal standards. Buy if the persona is a profession rather than a company, because a WordPress SEO specialist knows the same things at your company as at anyone else's and writing that from scratch is several hours of drafting and testing to arrive where someone has already been. Ready-made role personas are $29 each. Either way you still write the knowledge block yourself, because that is the part that is about you.

Not from adjectives, which is where almost every voice persona fails. Paste in ten things the person actually wrote, ask Claude to describe the patterns it sees in sentence length, structure, hedging and vocabulary, then keep that description as the voice block. Their real habits are usually not the ones they would have told you about, and the imitation gets noticeably better as a result.