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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 | 2x 2x 2x 1x 2x 2x 16x 4x 4x 3x 4x 2x 1x 4x 2x 2x 1x 1x 16x 3x 3x 2x 3x 1x 1x 3x 1x 1x 1x 1x 16x 3x 3x 2x 1x | import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import * as z from "zod/v4";
import type { KvkClient } from "../kvk-client.js";
import type { Signaal } from "../types.js";
import { toTextResult, toErrorResult } from "../tool-result.js";
const formatSignaal = (s: Signaal): string => {
const lines = [
`Signal ID: ${s.signaalId}`,
`Subscription ID: ${s.abonnementId}`,
s.kvkNummer ? `KVK number: ${s.kvkNummer}` : null,
s.vestigingsnummer ? `Vestigingsnummer: ${s.vestigingsnummer}` : null,
s.type ? `Type: ${s.type}` : null,
s.registratietijdstip ? `Registration time: ${s.registratietijdstip}` : null,
s.signaalTijdstip ? `Signal time: ${s.signaalTijdstip}` : null,
s.omschrijving ? `Description: ${s.omschrijving}` : null,
].filter(Boolean);
if (s.details && Object.keys(s.details).length > 0) {
lines.push(`Details: ${JSON.stringify(s.details)}`);
}
return lines.join("\n");
};
export const registerMutationTools = (server: McpServer, client: KvkClient): void => {
server.registerTool(
"list_subscriptions",
{
title: "List Mutation Subscriptions",
description:
"List all mutation subscriptions (abonnementen) for the KVK Mutatieservice. " +
"Returns all active subscriptions with their IDs and descriptions.",
annotations: { readOnlyHint: true, openWorldHint: true },
inputSchema: z.object({}),
},
async () => {
try {
const response = await client.listAbonnementen();
const abonnementen = response.abonnementen ?? [];
if (abonnementen.length === 0) {
return toTextResult("No subscriptions found.");
}
const lines = [`Found ${abonnementen.length} subscription${abonnementen.length !== 1 ? "s" : ""}:`, ""];
for (const ab of abonnementen) {
const parts = [
`ID: ${ab.abonnementId}`,
ab.naam ? `Name: ${ab.naam}` : null,
ab.beschrijving ? `Description: ${ab.beschrijving}` : null,
].filter(Boolean);
lines.push(` - ${parts.join(", ")}`);
}
return toTextResult(
lines.join("\n"),
{ abonnementen } as unknown as Record<string, unknown>,
);
} catch (error) {
return toErrorResult(error);
}
},
);
server.registerTool(
"list_signals",
{
title: "List Mutation Signals",
description:
"List mutation signals (signalen) for a specific subscription. " +
"Returns a paged list of signals indicating changes to companies or locations.",
annotations: { readOnlyHint: true, openWorldHint: true },
inputSchema: z.object({
abonnementId: z.string().describe("The subscription ID to list signals for."),
vanaf: z.string().optional().describe("Start datetime (ISO 8601) to filter signals from."),
tot: z.string().optional().describe("End datetime (ISO 8601) to filter signals until."),
pagina: z.number().int().min(1).default(1).describe("Page number (starts at 1)."),
aantal: z.number().int().min(10).max(500).default(100).describe("Number of results per page (10-500)."),
}),
},
async ({ abonnementId, vanaf, tot, pagina, aantal }) => {
try {
const response = await client.listSignalen({
abonnementId,
vanaf,
tot,
pagina,
aantal,
});
const signalen = response.signalen ?? [];
if (signalen.length === 0) {
return toTextResult("No signals found for this subscription.");
}
const lines = [
`Found ${response.totaal} signal${response.totaal !== 1 ? "s" : ""} (page ${response.pagina}, ${response.aantal} per page)`,
"",
];
for (const s of signalen) {
const parts = [
`ID: ${s.signaalId}`,
s.kvkNummer ? `KVK: ${s.kvkNummer}` : null,
s.type ? `Type: ${s.type}` : null,
s.omschrijving ?? null,
].filter(Boolean);
lines.push(` - ${parts.join(", ")}`);
}
return toTextResult(
lines.join("\n"),
{
totaal: response.totaal,
pagina: response.pagina,
aantal: response.aantal,
signalen,
} as unknown as Record<string, unknown>,
);
} catch (error) {
return toErrorResult(error);
}
},
);
server.registerTool(
"get_signal",
{
title: "Get Signal Details",
description:
"Get the full details of a specific mutation signal (signaal) by subscription ID and signal ID.",
annotations: { readOnlyHint: true, openWorldHint: true },
inputSchema: z.object({
abonnementId: z.string().describe("The subscription ID."),
signaalId: z.string().describe("The signal ID."),
}),
},
async ({ abonnementId, signaalId }) => {
try {
const signaal = await client.getSignaal(abonnementId, signaalId);
return toTextResult(
formatSignaal(signaal),
signaal as unknown as Record<string, unknown>,
);
} catch (error) {
return toErrorResult(error);
}
},
);
};
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