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linkedin.com

Reply to LinkedIn comment

Reply to a specific comment on a LinkedIn post, by the post URL plus the comment's urn (from get_post_comments or comment_post). Posts a real public reply under the logged-in account. The whole comment thread is paged through to reach the target, so a comment far down a long list is still found; replies that LinkedIn keeps hidden behind a "see previous replies" link are not expanded. The reply box auto-@mentions the comment author, and your text is added after that mention. Returns replied, plus the new reply's urn.

Input

reply required

The reply text. This posts a real, public reply under the user's account immediately, so confirm the exact text with them before running.

postUrl required

LinkedIn post permalink (/feed/update/urn:li:activity:.../).

commentUrn required

The target comment's urn, e.g. urn:li:comment:(activity:123,456) (from get_post_comments / comment_post).

Output

reply required
postUrl required
replied required
commentUrn required

The TARGET comment's urn (the one replied to).

account_used required

The real account the reply was (or would be) posted under, echoed from the session/UI.

already_present required

True if an exact-text reply was found already loaded under this comment's activity before opening the reply composer. Best-effort: a false does not guarantee no duplicate exists behind an unexpanded 'see previous replies' link.

verified_on_page required

True if the script independently re-inspected the newly created reply node's own rendered text and confirmed it matches what was posted. Always true when already_present is true.

replyUrn optional

urn:li:comment of the CREATED reply, from the create response; null if unresolved. Points at the pre-existing reply instead when already_present is true.

FAQ

Reply to a specific comment on a LinkedIn post, by the post URL plus the comment's urn (from get_post_comments or comment_post). Posts a real public reply under the logged-in account. The whole comment thread is paged through to reach the target, so a comment far down a long list is still found; replies that LinkedIn keeps hidden behind a "see previous replies" link are not expanded. The reply box auto-@mentions the comment author, and your text is added after that mention. Returns replied, plus the new reply's urn.
Required: postUrl, commentUrn, reply.
It returns reply, postUrl, replied, replyUrn, commentUrn, account_used, already_present, verified_on_page.
Yes. It acts as you on linkedin.com: on your own Chrome it reuses your session, and on a Reduck-hosted browser it loads the linkedin.com cookies saved by the Reduck extension.
It makes changes on linkedin.com, like sending, posting or booking something.
Ask an AI agent connected to Reduck to run reduck/linkedin.com/reply_post_comment, or run it from a terminal with the Reduck CLI: npx @reduck-ai/cli@latest run --script reduck/linkedin.com/reply_post_comment
It is part of Reduck's official curated catalogue.

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