React to message
Add or remove an emoji reaction on one stored message on LinkedIn (outward action). Pass the message sid + a reaction_type; the reaction is dispatched to LinkedIn and mirrored onto the stored row. Set remove:true to take YOUR reaction back (pass the same reaction_type you reacted with). Basic messenger only: an SN message or a non-2-… message_hash is refused before dispatch. Spends the messaging_general bucket.
Contract:
- MCP tool
react_linkedin_message, registry packagemcp.linkedin/linkedin_messages, mountlinkedin.messaging. - Operation
action, response envelopeaction. - Flags: dangerous: the MCP layer gates it behind a preview/commit token, and the effect cannot be undone through this API.
Authorizations
Access token issued by gtm.service.id. Its access_identity claim carries team_sid, actor_sid and actor_type, and that team scope is authoritative.
Team scope for tokens that do not carry one. Ignored when the token already names a team.
Path Parameters
LinkedIn message sid (ln_ms_…).
18^ln_ms_