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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 | 10x 10x 10x 10x 8x 1x 1x 1x 7x 2x 1x 1x 4x | /**
* MCP Tool: get_committee_documents_feed
*
* Get recently updated committee documents from the feed.
* This is a **fixed-window feed** — the EP API does not accept a timeframe
* or start-date parameter. It returns updates from a server-defined default
* window (typically one month).
*
* **EP API Endpoint:**
* - `GET /committee-documents/feed`
*
* ISMS Policy: SC-002 (Input Validation), AC-003 (Least Privilege)
*/
import { GetCommitteeDocumentsFeedSchema } from '../schemas/europeanParliament.js';
import { epClient } from '../clients/europeanParliamentClient.js';
import { ToolError } from './shared/errors.js';
import { isUpstream404, buildEmptyFeedResponse, isErrorInBody, buildFeedSuccessResponse, FIXED_WINDOW_FEED_INPUT_SCHEMA, extractUpstreamStatusCode } from './shared/feedUtils.js';
import { z } from 'zod';
import type { ToolResult } from './shared/types.js';
/**
* Handles the get_committee_documents_feed MCP tool request.
*
* @param args - Raw tool arguments, validated against {@link GetCommitteeDocumentsFeedSchema}
* @returns MCP tool result containing recently updated committee documents data
* @security Input is validated with Zod before any API call.
*/
export async function handleGetCommitteeDocumentsFeed(args: unknown): Promise<ToolResult> {
try {
GetCommitteeDocumentsFeedSchema.parse(args);
} catch (error: unknown) {
if (error instanceof z.ZodError) {
const fieldErrors = error.issues.map((e) => `${e.path.join('.')}: ${e.message}`).join('; ');
throw new ToolError({
toolName: 'get_committee_documents_feed',
operation: 'validateInput',
message: `Invalid parameters: ${fieldErrors}`,
isRetryable: false,
cause: error,
});
}
throw error;
}
try {
const result = await epClient.getCommitteeDocumentsFeed();
if (isErrorInBody(result)) {
const errorMessage = typeof result['error'] === 'string' ? result['error'] : 'Unknown upstream error';
const statusCode = extractUpstreamStatusCode(errorMessage);
return buildEmptyFeedResponse(
'EP API returned an error-in-body response for get_committee_documents_feed — the upstream enrichment step may have failed.',
{
errorCode: 'ENRICHMENT_FAILED',
retryable: true,
upstream: {
...(statusCode !== undefined ? { statusCode } : {}),
errorMessage,
},
},
);
}
return buildFeedSuccessResponse(result);
} catch (error: unknown) {
if (isUpstream404(error)) {
return buildEmptyFeedResponse(
'EP API returned HTTP 404 for get_committee_documents_feed — no committee document feed entries are currently available for the upstream fixed window.',
{
errorCode: 'UPSTREAM_ERROR',
retryable: true,
upstream: {
statusCode: 404,
errorMessage: error instanceof Error ? error.message : 'Not Found',
},
},
);
}
throw new ToolError({
toolName: 'get_committee_documents_feed',
operation: 'fetchData',
message: 'Failed to retrieve committee documents feed',
isRetryable: true,
cause: error,
});
}
}
/** Tool metadata for get_committee_documents_feed */
export const getCommitteeDocumentsFeedToolMetadata = {
name: 'get_committee_documents_feed',
description:
'Get recently updated committee documents from the EP Open Data Portal feed. This is a fixed-window feed — the upstream EP API always returns items updated within a server-defined default window (typically one month). For contract uniformity with sliding-window feed tools, the common feed parameters (timeframe, startDate, limit, offset) are accepted but informational-only — they are silently ignored. Data source: European Parliament Open Data Portal.',
inputSchema: FIXED_WINDOW_FEED_INPUT_SCHEMA,
};
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