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* MCP Tool: analyze_committee_activity
*
* Analyze committee workload and member engagement for EP committees
* using real data from the European Parliament Open Data Portal.
*
* **Intelligence Perspective:** Committee activity analysis reveals institutional
* priorities, resource allocation patterns, and policy domain intensity—essential
* for understanding where legislative power concentrates.
*
* **Business Perspective:** Committee monitoring enables enterprise government affairs
* teams to track policy areas relevant to their industry with precision.
*
* ISMS Policy: SC-002 (Input Validation), AC-003 (Least Privilege), AU-002 (Audit Logging)
*/
import { z } from 'zod';
import { epClient } from '../clients/europeanParliamentClient.js';
import { auditLogger, toErrorMessage } from '../utils/auditLogger.js';
import { withTimeoutAndAbort, TimeoutError } from '../utils/timeout.js';
import type { ToolResult } from './shared/types.js';
import type { LegislativeDocument } from '../types/ep/document.js';
import type { Procedure } from '../types/ep/activities.js';
import type { PlenarySession } from '../types/ep/plenary.js';
import type { PaginatedResponse } from '../types/ep/common.js';
/**
* Schema for analyze_committee_activity tool input
*/
export const AnalyzeCommitteeActivitySchema = z.object({
committeeId: z.string()
.min(1)
.max(100)
.describe('Committee identifier or abbreviation (e.g., "ENVI", "ITRE")'),
dateFrom: z.string()
.regex(/^\d{4}-\d{2}-\d{2}$/, 'Date must be in YYYY-MM-DD format')
.optional()
.describe('Start date for analysis period'),
dateTo: z.string()
.regex(/^\d{4}-\d{2}-\d{2}$/, 'Date must be in YYYY-MM-DD format')
.optional()
.describe('End date for analysis period'),
});
/**
* Per-source data availability status.
*
* - `OK`: fetched and at least one item matched the committee/date filter.
* - `EMPTY`: fetched successfully but no items matched.
* - `TIMEOUT`: per-source 5s budget expired; data not populated.
* - `UNAVAILABLE`: EP API returned an error.
*/
export type DataSourceStatus = 'OK' | 'EMPTY' | 'TIMEOUT' | 'UNAVAILABLE';
interface DataSources {
documents: DataSourceStatus;
procedures: DataSourceStatus;
meetings: DataSourceStatus;
decisions: DataSourceStatus;
}
/**
* Committee activity analysis result
*/
interface CommitteeActivityAnalysis {
committeeId: string;
committeeName: string;
period: { from: string; to: string };
workload: {
activeLegislativeFiles: number;
documentsProduced: number;
meetingsHeld: number;
decisionsAdopted: number;
opinionsIssued: number;
};
memberEngagement: {
totalMembers: number;
averageAttendance: number;
activeContributors: number;
};
legislativeOutput: {
reportsAdopted: number;
amendmentsProcessed: number;
successRate: number;
};
derivedMetrics: {
decisionsPerMeeting: number;
documentsPerMonth: number;
activeFilesPerMember: number;
};
computedAttributes: {
workloadIntensity: string;
productivityScore: number;
engagementLevel: string;
policyImpactRating: string;
};
dataSources: DataSources;
confidenceLevel: 'HIGH' | 'MEDIUM' | 'LOW';
dataFreshness: string;
sourceAttribution: string;
methodology: string;
dataQualityWarnings: string[];
cacheHit?: boolean;
}
// ---------------------------------------------------------------------------
// Constants
// ---------------------------------------------------------------------------
/** Per-source timeout budget (issue: 5 s each). */
const SOURCE_TIMEOUT_MS = 5_000;
/** Page size used when fanning out per-committee filters client-side. */
const FETCH_PAGE_LIMIT = 200;
/** Max number of meetings to fan out for decisions to keep within rate budget. */
const MAX_MEETINGS_FOR_DECISIONS = 8;
/** 10-minute in-memory cache TTL per (committeeId, dateFrom, dateTo). */
const CACHE_TTL_MS = 10 * 60 * 1000;
/** Cache size cap to bound memory usage. */
const MAX_CACHE_ENTRIES = 200;
// ---------------------------------------------------------------------------
// Cache
// ---------------------------------------------------------------------------
interface CacheEntry {
expiresAt: number;
value: CommitteeActivityAnalysis;
}
const analysisCache = new Map<string, CacheEntry>();
function makeCacheKey(committeeId: string, dateFrom: string, dateTo: string): string {
return `${committeeId.toUpperCase()}|${dateFrom}|${dateTo}`;
}
function readCache(key: string): CommitteeActivityAnalysis | undefined {
const entry = analysisCache.get(key);
if (entry === undefined) return undefined;
Iif (entry.expiresAt <= Date.now()) {
analysisCache.delete(key);
return undefined;
}
return { ...entry.value, cacheHit: true };
}
function writeCache(key: string, value: CommitteeActivityAnalysis): void {
Iif (analysisCache.size >= MAX_CACHE_ENTRIES) {
// FIFO eviction: Map iteration order is insertion order in JS, so the
// first key is the oldest insertion. Sufficient for a small bounded
// analysis cache; full LRU is not warranted at this scale.
const firstKey = analysisCache.keys().next().value;
if (firstKey !== undefined) analysisCache.delete(firstKey);
}
analysisCache.set(key, {
expiresAt: Date.now() + CACHE_TTL_MS,
value: { ...value, cacheHit: false },
});
}
/**
* Clear the analyze_committee_activity cache (test-only helper).
*
* @internal
*/
export function clearAnalyzeCommitteeActivityCache(): void {
analysisCache.clear();
}
// ---------------------------------------------------------------------------
// Filter helpers
// ---------------------------------------------------------------------------
/**
* Tolerant committee match.
*
* EP API mixes representations: documents use `committee: "COMM-ENVI"`,
* procedures use `responsibleCommittee: "ENVI"`, and some payloads use the
* raw URI suffix. We accept any of: exact match, substring match in either
* direction (case-insensitive), or the canonical `COMM-{abbrev}` form.
*/
function matchesCommittee(value: string | undefined | null, committeeId: string): boolean {
Iif (value === undefined || value === null || value === '') return false;
const v = value.toUpperCase();
const id = committeeId.toUpperCase();
if (v === id) return true;
Iif (v === `COMM-${id}`) return true;
Iif (v.includes(id)) return true;
Iif (id.includes(v) && v.length >= 3) return true;
return false;
}
/**
* Inclusive ISO-date range check. Returns `false` for missing/invalid dates so
* callers can treat unknown dates as out-of-window.
*/
function isWithinDateWindow(date: string | undefined | null, dateFrom: string, dateTo: string): boolean {
Iif (date === undefined || date === null || date === '') return false;
const d = date.length >= 10 ? date.slice(0, 10) : date;
return d >= dateFrom && d <= dateTo;
}
/** Procedure statuses interpreted as "ongoing" (case-insensitive substring). */
const ONGOING_PROCEDURE_STATUSES = ['ongoing', 'open', 'in progress', 'awaiting', 'pending'];
function isOngoingProcedure(status: string | undefined | null): boolean {
// Unknown/missing status defaults to ongoing rather than filtered out:
// EP procedure payloads sometimes omit status, and dropping silently would
// under-count active legislative files for committees.
Iif (status === undefined || status === null || status === '') return true;
const s = status.toLowerCase();
return ONGOING_PROCEDURE_STATUSES.some((token) => s.includes(token));
}
// ---------------------------------------------------------------------------
// Source result modelling
// ---------------------------------------------------------------------------
interface SourceFetchResult<T> {
status: DataSourceStatus;
count: number;
items: T[];
error?: string;
}
/**
* Run a per-source fetch under a 5 s budget, mapping outcomes into a
* `DataSourceStatus`. Per-source failures never bubble — callers see a
* structured envelope so unrelated sources continue to populate values.
*/
async function runSource<T>(
source: keyof DataSources,
fetcher: (signal: AbortSignal) => Promise<T[]>,
): Promise<SourceFetchResult<T>> {
const startedAt = Date.now();
try {
const items = await withTimeoutAndAbort(
fetcher,
SOURCE_TIMEOUT_MS,
`analyze_committee_activity:${source} timed out after ${String(SOURCE_TIMEOUT_MS)}ms`,
);
const count = items.length;
auditLogger.logDataAccess(
`analyze_committee_activity.${source}`,
{ source, truncated: count > 1000 ? '1000+' : count },
count,
Date.now() - startedAt,
);
return {
status: count > 0 ? 'OK' : 'EMPTY',
count,
items,
};
} catch (error: unknown) {
const message = toErrorMessage(error);
const isTimeout = error instanceof TimeoutError;
auditLogger.logError(
`analyze_committee_activity.${source}`,
{ source, timedOut: isTimeout },
message,
Date.now() - startedAt,
);
return {
status: isTimeout ? 'TIMEOUT' : 'UNAVAILABLE',
count: 0,
items: [],
error: message,
};
}
}
// ---------------------------------------------------------------------------
// Per-source fetchers
// ---------------------------------------------------------------------------
async function fetchDocumentsForCommittee(
committeeId: string,
dateFrom: string,
dateTo: string,
): Promise<SourceFetchResult<LegislativeDocument>> {
return runSource<LegislativeDocument>('documents', async () => {
const response: PaginatedResponse<LegislativeDocument> = await epClient.getCommitteeDocuments({
limit: FETCH_PAGE_LIMIT,
});
const items = Array.isArray(response.data) ? response.data : [];
return items.filter((doc) =>
matchesCommittee(doc.committee, committeeId)
&& isWithinDateWindow(doc.date, dateFrom, dateTo),
);
});
}
async function fetchActiveProceduresForCommittee(
committeeId: string,
dateFrom: string,
dateTo: string,
): Promise<SourceFetchResult<Procedure>> {
return runSource<Procedure>('procedures', async () => {
const response: PaginatedResponse<Procedure> = await epClient.getProcedures({
limit: FETCH_PAGE_LIMIT,
});
const items = Array.isArray(response.data) ? response.data : [];
return items.filter((proc) =>
matchesCommittee(proc.responsibleCommittee, committeeId)
&& isOngoingProcedure(proc.status)
&& (isWithinDateWindow(proc.dateLastActivity, dateFrom, dateTo)
|| isWithinDateWindow(proc.dateInitiated, dateFrom, dateTo)),
);
});
}
async function fetchMeetingsInWindow(
dateFrom: string,
dateTo: string,
): Promise<SourceFetchResult<PlenarySession>> {
return runSource<PlenarySession>('meetings', async () => {
const response: PaginatedResponse<PlenarySession> = await epClient.getPlenarySessions({
dateFrom,
dateTo,
limit: 100,
});
const items = Array.isArray(response.data) ? response.data : [];
return items.filter((s) => isWithinDateWindow(s.date, dateFrom, dateTo));
});
}
/**
* Fan-out helper: aggregate decisions across up to {@link MAX_MEETINGS_FOR_DECISIONS}
* sittings, filtering by the requested committee where the response carries
* committee metadata. Runs under the same 5 s budget.
*/
async function fetchDecisionsForCommittee(
committeeId: string,
meetings: PlenarySession[],
): Promise<SourceFetchResult<LegislativeDocument>> {
return runSource<LegislativeDocument>('decisions', async (signal) => {
Iif (meetings.length === 0) return [];
const targetMeetings = meetings.slice(0, MAX_MEETINGS_FOR_DECISIONS);
const settled = await Promise.allSettled(
targetMeetings.map(async (meeting): Promise<LegislativeDocument[]> => {
Iif (signal.aborted) return [];
const resp = await epClient.getMeetingDecisions(meeting.id, { limit: 100 });
const decisions = Array.isArray(resp.data) ? resp.data : [];
// Filter by committee when the decision payload carries that metadata;
// otherwise (most plenary decisions are EP-wide) keep all and rely on
// the meeting-level window filter that already applied upstream.
return decisions.filter((d) => {
Eif (d.committee === undefined || d.committee === '') return true;
return matchesCommittee(d.committee, committeeId);
});
}),
);
const out: LegislativeDocument[] = [];
for (const r of settled) {
Eif (r.status === 'fulfilled') out.push(...r.value);
}
return out;
});
}
// ---------------------------------------------------------------------------
// Legacy aggregations retained for backward compatibility
// ---------------------------------------------------------------------------
/**
* Legacy `reportsAdopted` proxy via `/adopted-texts` (parliament-wide).
*
* Kept for compatibility with downstream consumers that read
* `legislativeOutput.reportsAdopted`; the new committee-scoped signal lives
* in `workload.decisionsAdopted`.
*/
async function fetchReportsAdoptedProxy(dateFrom: string): Promise<{ count: number; status: DataSourceStatus }> {
const startedAt = Date.now();
try {
const year = parseInt(dateFrom.substring(0, 4), 10);
const resp = await withTimeoutAndAbort(
() => epClient.getAdoptedTexts({ year, limit: 100 }),
SOURCE_TIMEOUT_MS,
'analyze_committee_activity:reports_adopted timed out',
);
const count = Array.isArray(resp.data) ? resp.data.length : 0;
auditLogger.logDataAccess(
'analyze_committee_activity.reports_adopted_proxy',
{ year },
count,
Date.now() - startedAt,
);
return { count, status: count > 0 ? 'OK' : 'EMPTY' };
} catch (error: unknown) {
const message = toErrorMessage(error);
const isTimeout = error instanceof TimeoutError;
auditLogger.logError(
'analyze_committee_activity.reports_adopted_proxy',
{ timedOut: isTimeout },
message,
Date.now() - startedAt,
);
return { count: 0, status: isTimeout ? 'TIMEOUT' : 'UNAVAILABLE' };
}
}
// ---------------------------------------------------------------------------
// Derived attributes
// ---------------------------------------------------------------------------
/**
* Compute workload intensity from metrics.
*/
function computeWorkloadIntensity(activeLegFiles: number, meetings: number): string {
const combined = activeLegFiles + meetings;
if (combined > 100) return 'VERY_HIGH';
if (combined > 60) return 'HIGH';
Iif (combined > 30) return 'MODERATE';
return 'LOW';
}
/**
* Compute engagement level from attendance.
*/
function computeEngagementLevel(avgAttendance: number): string {
Iif (avgAttendance >= 80) return 'HIGH';
Iif (avgAttendance >= 60) return 'MODERATE';
return 'LOW';
}
/**
* Compute policy impact rating from output and success rate.
*/
function computePolicyImpactRating(reportsAdopted: number, successRate: number): string {
const impactScore = reportsAdopted * successRate;
Iif (impactScore > 15) return 'HIGH';
if (impactScore > 5) return 'MEDIUM';
return 'LOW';
}
/**
* Round to two decimals.
*/
function round2(n: number): number {
return Math.round(n * 100) / 100;
}
/**
* Compute the approximate inclusive month span between two ISO dates,
* using a 30-day month approximation. Clamped to >= 1 to avoid division
* by zero in derived per-month metrics. Sufficient for window-length
* normalisation; not used where calendar accuracy is required.
*/
function monthsBetween(dateFrom: string, dateTo: string): number {
const from = new Date(dateFrom);
const to = new Date(dateTo);
Iif (Number.isNaN(from.getTime()) || Number.isNaN(to.getTime())) return 1;
const ms = Math.max(0, to.getTime() - from.getTime());
const days = ms / (1000 * 60 * 60 * 24);
return Math.max(1, days / 30);
}
// ---------------------------------------------------------------------------
// Default date window
// ---------------------------------------------------------------------------
/**
* Default date window: trailing 6 months ending today (issue requirement).
*/
function resolveDateWindow(
dateFrom: string | undefined,
dateTo: string | undefined,
): { dateFrom: string; dateTo: string } {
const now = new Date();
const resolvedTo = dateTo ?? (now.toISOString().split('T')[0] ?? '');
const sixMonthsAgo = new Date(now.getFullYear(), now.getMonth() - 6, now.getDate());
const resolvedFrom = dateFrom ?? (sixMonthsAgo.toISOString().split('T')[0] ?? '');
return { dateFrom: resolvedFrom, dateTo: resolvedTo };
}
// ---------------------------------------------------------------------------
// Analysis builder
// ---------------------------------------------------------------------------
interface SourceCounts {
documents: SourceFetchResult<LegislativeDocument>;
procedures: SourceFetchResult<Procedure>;
meetings: SourceFetchResult<PlenarySession>;
decisions: SourceFetchResult<LegislativeDocument>;
reportsAdoptedCount: number;
reportsAdoptedStatus: DataSourceStatus;
}
/**
* Fan out all four EP sources in parallel via `Promise.allSettled` and a
* legacy `reportsAdopted` proxy. Per-source timeouts are independent so a
* single slow endpoint cannot starve the others.
*
* The `decisions` fan-out depends on the meetings result (it needs sitting
* IDs); it still runs under its own 5 s budget once meetings settle, so the
* overall worst case is ~10 s rather than 4×5 s.
*/
async function fetchAllSources(
committeeId: string,
dateFrom: string,
dateTo: string,
): Promise<SourceCounts> {
const [documents, procedures, meetings, reportsAdopted] = await Promise.all([
fetchDocumentsForCommittee(committeeId, dateFrom, dateTo),
fetchActiveProceduresForCommittee(committeeId, dateFrom, dateTo),
fetchMeetingsInWindow(dateFrom, dateTo),
fetchReportsAdoptedProxy(dateFrom),
]);
// Decisions fan out from the meetings result. If meetings is unavailable,
// surface a matching status without spending the budget.
let decisions: SourceFetchResult<LegislativeDocument>;
if (meetings.status === 'OK') {
decisions = await fetchDecisionsForCommittee(committeeId, meetings.items);
} else {
decisions = {
status: meetings.status === 'EMPTY' ? 'EMPTY' : meetings.status,
count: 0,
items: [],
};
}
return {
documents,
procedures,
meetings,
decisions,
reportsAdoptedCount: reportsAdopted.count,
reportsAdoptedStatus: reportsAdopted.status,
};
}
/**
* Translate per-source status flags into human-readable warnings for the
* `dataQualityWarnings` envelope.
*/
function buildQualityWarnings(sources: SourceCounts): string[] {
const warnings: string[] = [];
const sourceLabels: Record<keyof DataSources, string> = {
documents: 'committee documents',
procedures: 'procedures',
meetings: 'plenary meetings',
decisions: 'meeting decisions',
};
for (const key of ['documents', 'procedures', 'meetings', 'decisions'] as const) {
const status = sources[key].status;
Iif (status === 'TIMEOUT') {
warnings.push(`${sourceLabels[key]} fetch timed out after ${String(SOURCE_TIMEOUT_MS)}ms — value reported as zero`);
} else if (status === 'UNAVAILABLE') {
warnings.push(`${sourceLabels[key]} unavailable from EP API — value reported as zero`);
} else if (status === 'EMPTY') {
warnings.push(`${sourceLabels[key]} returned no items matching committee or date window`);
}
}
warnings.push('Meeting attendance and amendment counts are not exposed by the EP API and remain zero.');
return warnings;
}
/**
* Aggregate raw counts from settled sources into derived workload metrics.
*/
function aggregateCounts(sources: SourceCounts, memberCount: number, dateFrom: string, dateTo: string): {
documentsProduced: number;
activeLegFiles: number;
meetingsHeld: number;
decisionsAdopted: number;
reportsAdopted: number;
successRate: number;
productivityScore: number;
derivedMetrics: { decisionsPerMeeting: number; documentsPerMonth: number; activeFilesPerMember: number };
} {
const documentsProduced = sources.documents.count;
const activeLegFiles = sources.procedures.count;
const meetingsHeld = sources.meetings.count;
const decisionsAdopted = sources.decisions.count;
const reportsAdopted = sources.reportsAdoptedCount;
const successRate = activeLegFiles > 0 && reportsAdopted > 0
? Math.min(1, reportsAdopted / activeLegFiles)
: 0;
const productivityScore = activeLegFiles > 0
? Math.round((reportsAdopted / activeLegFiles) * 100)
: 0;
const months = monthsBetween(dateFrom, dateTo);
return {
documentsProduced,
activeLegFiles,
meetingsHeld,
decisionsAdopted,
reportsAdopted,
successRate,
productivityScore,
derivedMetrics: {
decisionsPerMeeting: meetingsHeld > 0 ? round2(decisionsAdopted / meetingsHeld) : 0,
documentsPerMonth: round2(documentsProduced / months),
activeFilesPerMember: memberCount > 0 ? round2(activeLegFiles / memberCount) : 0,
},
};
}
/**
* Derive the overall confidence level from source statuses and aggregate
* data presence.
*/
function deriveConfidenceLevel(
dataSources: DataSources,
hasRealData: boolean,
): 'HIGH' | 'MEDIUM' | 'LOW' {
const okSources = (Object.values(dataSources) as DataSourceStatus[])
.filter((s) => s === 'OK').length;
if (okSources >= 3) return 'HIGH';
if (hasRealData) return 'MEDIUM';
return 'LOW';
}
/**
* Build committee activity analysis from real EP data using a resilient
* fan-out across documents, procedures, meetings, and decisions sources.
*/
async function buildAnalysis(
committeeId: string,
dateFrom: string,
dateTo: string,
): Promise<CommitteeActivityAnalysis> {
const committeeData = await epClient.getCommitteeInfo({ abbreviation: committeeId });
const memberCount = Array.isArray(committeeData.members) ? committeeData.members.length : 0;
const sources = await fetchAllSources(committeeId, dateFrom, dateTo);
const agg = aggregateCounts(sources, memberCount, dateFrom, dateTo);
const dataSources: DataSources = {
documents: sources.documents.status,
procedures: sources.procedures.status,
meetings: sources.meetings.status,
decisions: sources.decisions.status,
};
const hasRealData = agg.documentsProduced > 0 || agg.activeLegFiles > 0
|| agg.meetingsHeld > 0 || agg.decisionsAdopted > 0 || agg.reportsAdopted > 0;
const confidenceLevel = deriveConfidenceLevel(dataSources, hasRealData);
return {
committeeId,
committeeName: committeeData.name,
period: { from: dateFrom, to: dateTo },
workload: {
activeLegislativeFiles: agg.activeLegFiles,
documentsProduced: agg.documentsProduced,
meetingsHeld: agg.meetingsHeld,
decisionsAdopted: agg.decisionsAdopted,
opinionsIssued: 0,
},
memberEngagement: {
totalMembers: memberCount,
averageAttendance: 0,
activeContributors: 0,
},
legislativeOutput: {
reportsAdopted: agg.reportsAdopted,
amendmentsProcessed: 0,
successRate: round2(agg.successRate),
},
derivedMetrics: agg.derivedMetrics,
computedAttributes: {
workloadIntensity: computeWorkloadIntensity(agg.activeLegFiles, agg.meetingsHeld),
productivityScore: agg.productivityScore,
engagementLevel: computeEngagementLevel(0),
policyImpactRating: computePolicyImpactRating(agg.reportsAdopted, agg.successRate),
},
dataSources,
confidenceLevel,
dataFreshness: 'Real-time EP API data — committee documents, procedures, meetings, and decisions',
sourceAttribution: 'European Parliament Open Data Portal - data.europarl.europa.eu',
methodology: 'Committee activity analysis using real data from the EP Open Data Portal. '
+ 'Four sources fan out in parallel under a 5s per-source timeout (Promise.allSettled): '
+ '/committee-documents (filtered client-side by committee + date), '
+ '/procedures (filtered by responsibleCommittee + ongoing status + date), '
+ '/meetings (filtered by date window), and '
+ '/meetings/{id}/decisions (fan-out across the meetings settled above, capped at '
+ `${String(MAX_MEETINGS_FOR_DECISIONS)} sittings to honour the per-process rate-limit budget). `
+ 'Each field is tagged with a per-source data-availability status so downstream tools can '
+ 'branch on real coverage. Committee membership comes from /corporate-bodies; '
+ 'legislativeOutput.reportsAdopted is a parliament-wide /adopted-texts proxy retained for '
+ 'backward compatibility (not committee-filtered). Member attendance and amendment counts '
+ 'are not exposed by the EP API and remain zero. '
+ 'Data source: European Parliament Open Data Portal.',
dataQualityWarnings: buildQualityWarnings(sources),
};
}
// ---------------------------------------------------------------------------
// Public handler
// ---------------------------------------------------------------------------
/**
* Handles the analyze_committee_activity MCP tool request.
*
* Analyses an EP committee's workload, meeting frequency, document production,
* member engagement, and legislative output over a given period using real
* data from the European Parliament Open Data Portal. Provides computed
* attributes including workload intensity, productivity score, engagement
* level, policy impact rating, and per-source data-availability tags.
*
* @param args - Raw tool arguments, validated against {@link AnalyzeCommitteeActivitySchema}
* @returns MCP tool result containing a {@link CommitteeActivityAnalysis}
* @throws If `args` fails schema validation or the committee lookup fails.
*
* @example
* ```typescript
* const result = await handleAnalyzeCommitteeActivity({
* committeeId: 'ENVI',
* dateFrom: '2024-01-01',
* dateTo: '2024-06-30'
* });
* ```
*
* @security Input is validated with Zod before any API call. All sub-fetches
* are audit-logged with truncated counts (ISMS AU-002). Per-source 5 s
* timeouts use AbortController to prevent dangling fetch connections.
*
* @performance Warm cache: <200 ms. Cold: ~5–10 s (per-source 5 s budgets).
*
* @since 0.8.0
* @see {@link analyzeCommitteeActivityToolMetadata}
*/
export async function handleAnalyzeCommitteeActivity(
args: unknown,
): Promise<ToolResult> {
const params = AnalyzeCommitteeActivitySchema.parse(args);
const { dateFrom, dateTo } = resolveDateWindow(params.dateFrom, params.dateTo);
const cacheKey = makeCacheKey(params.committeeId, dateFrom, dateTo);
const cached = readCache(cacheKey);
if (cached !== undefined) {
return {
content: [{ type: 'text', text: JSON.stringify(cached, null, 2) }],
};
}
const analysis = await buildAnalysis(params.committeeId, dateFrom, dateTo);
writeCache(cacheKey, analysis);
return {
content: [
{ type: 'text', text: JSON.stringify({ ...analysis, cacheHit: false }, null, 2) },
],
};
}
/**
* Tool metadata for MCP listing
*/
export const analyzeCommitteeActivityToolMetadata = {
name: 'analyze_committee_activity',
description: 'Analyze European Parliament committee workload, meeting frequency, document production, decisions adopted, legislative output, and member engagement. Fans out four EP sources in parallel with per-source timeouts and reports data availability per source.',
inputSchema: {
type: 'object' as const,
properties: {
committeeId: {
type: 'string',
description: 'Committee identifier or abbreviation (e.g., "ENVI", "ITRE")',
},
dateFrom: {
type: 'string',
description: 'Start date (YYYY-MM-DD). Defaults to trailing 6 months.',
},
dateTo: {
type: 'string',
description: 'End date (YYYY-MM-DD). Defaults to today.',
},
},
required: ['committeeId'],
},
};
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