Record yourself doing a job once, talk through it as you go, and Claude turns the recording into a skill it can run again. You don't write a single instruction.
A skill is a set of instructions Claude saves once and reaches for later. Normally you write those instructions. Record a skill lets you demonstrate them instead: you hit record, do the task the way you always do it, narrate what you're doing, and Claude writes the skill from what it watched.
It went live on 21 July 2026 inside Cowork, which is the part of Claude that does work on your behalf rather than just chatting back. Cowork is on Mac, Windows, web and mobile. Recording a skill is the Mac-only piece.
Narrate the decisions, not the clicks. Claude can already see your clicks. What it can't see is why you chose that folder, why you skipped that row, or why the second paragraph always gets cut. That reasoning is the part a written instruction always leaves out, and it's the part that makes the skill usable next week.
"Okay, opening the folder. Clicking the file. Now I'm selecting the column. Copying that. Pasting it here."
"I'm opening last month's folder, not this month's, because the invoice always lands a month behind. I skip anything under fifty dollars, it's not worth chasing."
Same recording length. The second one produces a skill that knows the rules. The first one produces a skill that knows where you clicked once.
Don't pick something clever. Pick something boring and repetitive that you'd recognise instantly. Then paste this into Cowork before you start recording, so Claude knows what it's about to watch.
I'm about to record myself doing a task I repeat every week. Before I start: ask me three questions about what the finished output has to look like, and what would make a run of this wrong. Then I'll record.
Answering those three questions out loud during the recording is what turns a demo into a skill.
Open the Claude desktop app on your Mac and go to Cowork. If you haven't set Cowork up yet, that's the prerequisite, and it takes about five minutes: Cowork setup guide.
Open the files, the tabs and the folders you'd normally have open. You want to record the job, not the ten seconds of hunting for it. These record well:
Click the + button in the composer, then choose Record a skill. Then click Start recording.
Do it exactly the way you normally would. Don't perform a tidied-up version, because the messy real one is what you actually need automated. Claude is capturing your screen, your clicks, your typing and your voice.
Here's the narration template, and then the same thing filled in so you can see the pattern rather than guess at it.
I do this every [how often], and it takes me about [how long].
The finished thing has to [what good looks like].
I'm starting in [where], because [why there and not somewhere else].
I'm skipping [what you ignore], because [why it doesn't matter].
This bit here is the part I always get wrong, so [what you check].
It's done when [the finish line].
I do this every Monday, and it takes me about twenty minutes.
The finished thing has to be one sheet, one row per client, newest at the top.
I'm starting in last month's folder, because the invoices always land a month behind.
I'm skipping anything under fifty dollars, because it costs more to chase than it's worth.
This bit here is the part I always get wrong, so I check the total against the bank line before I save.
It's done when the sheet is saved as a PDF in the Sent folder with this week's date on it.
When you've finished the job, click Done. If it went badly, click Discard and nothing is created.
Claude reviews the recording and proposes a skill. Nothing is saved until you say so. You'll get one of two things:
Read it before you save. This is the moment you catch a rule it inferred wrongly, and fixing it here takes ten seconds.
Worth knowing before you record your actual work, with your actual client names on screen. Anthropic's help centre says it plainly: "The video and audio from your recording aren't retained." Claude reviews the recording to build the skill, and "what's saved afterward is a set of screenshots from the session."
So the video goes, the screenshots stay. Two practical consequences:
Three things go wrong, and all three have the same shape of fix.