comment-post

linkedin.com · Cowork

Download for Coworkthe skill folder, zipped

How to use it in Coworkonce per skill

Download the skill (.zip)

One .zip per skill. Inside: SKILL.md with the intent and the frontmatter, and the code that runs in the page.

Open Skills in Cowork

Settings → Personalize → Skills. This is Cowork's own skill library, shared across every chat.

Add → pick the .zip

Click Add and choose the file you just downloaded. Cowork installs it once; no CLAUDE.md, no per-project setup.

Ask in plain language

The skill stays available in every session. Cowork runs it in your own Chrome, riding the session you are already signed into.

Side effectwrite-irreversible

Authsession

Needsnavigate · wait · type · click

Summary

Post a comment with the given text on a third-party LinkedIn post (by URN), from the logged-in account.

Params

{"urn":"string (urn:li:activity:...)","text":"string (comment body)"}

Returns

{"commented":"bool"}

SKILL.md25 lines

Intent

Post a comment with the given text on a third-party LinkedIn post (by URN), from the logged-in account.

Logged-in session in the browser you drive (LinkedIn session (logged-in cookie) for www.linkedin.com).
If not logged in: navigate to https://linkedin.com and let the user log in, then retry.

Drive the rendered page with your browser (selectors are CSS; {{var}} = a param):

Step 4 is the commit: it performs the write-irreversible action.

{
  "expr": "!document.querySelector('button[class*=\"comments-comment-box__submit-button\"]')",
  "type": "dom",
  "within_ms": 8000
}