mcp-linkedin

Instructions

Implementation Reference

• src/tools/react.js:25-66 (handler)

  The `handleReact` function processes the `linkedin_react` tool request, validating input arguments and using the Unipile client to react to a LinkedIn post.

  export async function handleReact(args) {
  	const { post_url, reaction_type = "like" } = args;
  
  	if (
  		!post_url ||
  		typeof post_url !== "string" ||
  		post_url.trim().length === 0
  	) {
  		return { error: "post_url is required" };
  	}
  
  	if (!VALID_REACTIONS.includes(reaction_type)) {
  		return {
  			error: `Invalid reaction_type: "${reaction_type}". Must be one of: ${VALID_REACTIONS.join(", ")}`,
  		};
  	}
  
  	const urn = parsePostUrn(post_url);
  	if (!urn) {
  		return {
  			error: `Could not parse post URN from: "${post_url}". Provide a LinkedIn post URL or raw URN.`,
  		};
  	}
  
  	const accountResult = await resolveAccountId();
  	if (!accountResult.success) {
  		return {
  			error: `Could not resolve LinkedIn account: ${accountResult.error}`,
  		};
  	}
  
  	const result = await reactToPost(accountResult.data, urn, reaction_type);
  	if (!result.success) {
  		return { error: result.error, details: result.details };
  	}
  
  	return {
  		status: "reacted",
  		post_urn: urn,
  		reaction_type,
  	};
  }

• src/server.js:94-119 (schema)

  The `linkedin_react` tool registration defines the name, description, input schema, and parameters, including validation for `post_url` and `reaction_type`.

  	name: "linkedin_react",
  	description:
  		"React to a LinkedIn post via Unipile. " +
  		"Accepts a LinkedIn post URL (e.g. https://linkedin.com/feed/update/urn:li:activity:12345) " +
  		"or a raw URN (urn:li:activity:12345). " +
  		"This action is immediate — there is no dry_run. " +
  		"Reaction type defaults to 'like' if not specified.",
  	inputSchema: {
  		type: "object",
  		properties: {
  			post_url: {
  				type: "string",
  				description:
  					"LinkedIn post URL (linkedin.com/feed/update/...) or raw URN (urn:li:activity:...)",
  			},
  			reaction_type: {
  				type: "string",
  				enum: ["like", "celebrate", "support", "love", "insightful", "funny"],
  				description:
  					'Reaction type. One of: like, celebrate, support, love, insightful, funny. Defaults to "like".',
  				default: "like",
  			},
  		},
  		required: ["post_url"],
  	},
  },

• src/server.js:148-150 (registration)

  The `linkedin_react` tool is registered in the `CallToolRequestSchema` handler in `src/server.js`, routing the request to the `handleReact` function.

  case "linkedin_react":
  	result = await handleReact(args || {});
  	break;