| 1 | import { McpServer } from '@modelcontextprotocol/server';
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| 2 | import { z } from 'zod';
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| 3 | import { createIdentity, FixtureFactCheckProvider, TrustEngine } from '../../core/src/index.js';
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| 4 | import {
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| 5 | AgentIdentitySchema,
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| 6 | FeedbackSchema,
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| 7 | InteractionEventSchema,
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| 8 | ReceiptSchema,
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| 9 | } from '../../protocol/src/index.js';
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| 10 |
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| 11 | export const OPENCLASP_TOOL_NAMES = [
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| 12 | 'openclasp_create_identity',
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| 13 | 'openclasp_register_agent',
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| 14 | 'openclasp_get_profile',
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| 15 | 'openclasp_assess_counterparty',
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| 16 | 'openclasp_begin_interaction',
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| 17 | 'openclasp_record_event',
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| 18 | 'openclasp_check_claim',
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| 19 | 'openclasp_validate_commitment',
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| 20 | 'openclasp_suggest_resolution',
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| 21 | 'openclasp_complete_interaction',
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| 22 | 'openclasp_submit_feedback',
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| 23 | 'openclasp_raise_dispute',
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| 24 | 'openclasp_verify_receipt',
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| 25 | ] as const;
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| 26 |
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| 27 | const text = (value: unknown) => ({
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| 28 | content: [{ type: 'text' as const, text: JSON.stringify(value, null, 2) }],
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| 29 | });
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| 30 |
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| 31 | export function buildMcpServer(engine = new TrustEngine()) {
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| 32 | const server = new McpServer(
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| 33 | { name: 'openclasp', version: '0.1.0' },
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| 34 | {
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| 35 | instructions:
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| 36 | 'Use OpenClasp to verify counterparties, record signed structured events, and request contextual risk decisions. Never send raw private conversations.',
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| 37 | },
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| 38 | );
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| 39 | return registerOpenClaspTools(server, engine);
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| 40 | }
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| 41 |
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| 42 | export function registerOpenClaspTools(server: McpServer, engine = new TrustEngine()) {
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| 43 | const factChecker = new FixtureFactCheckProvider();
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| 44 | const keys = new Map<string, unknown>();
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| 45 |
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| 46 | server.registerTool(
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| 47 | OPENCLASP_TOOL_NAMES[0],
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| 48 | {
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| 49 | description: 'Create a local Ed25519 agent identity',
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| 50 | inputSchema: z.object({
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| 51 | agentId: z.string(),
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| 52 | operatorRef: z.string(),
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| 53 | capabilities: z.array(z.string()),
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| 54 | }),
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| 55 | },
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| 56 | async (input, context) => {
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| 57 | const authenticatedOperator = context.http?.authInfo?.extra?.operatorId;
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| 58 | const created = createIdentity({
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| 59 | ...input,
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| 60 | operatorRef:
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| 61 | typeof authenticatedOperator === 'string'
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| 62 | ? `descope:${authenticatedOperator}`
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| 63 | : input.operatorRef,
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| 64 | });
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| 65 | keys.set(input.agentId, created.keyPair);
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| 66 | return text(created);
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| 67 | },
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| 68 | );
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| 69 | server.registerTool(
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| 70 | OPENCLASP_TOOL_NAMES[1],
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| 71 | {
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| 72 | description: 'Register and verify a signed agent identity',
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| 73 | inputSchema: AgentIdentitySchema,
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| 74 | },
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| 75 | async (input, context) => {
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| 76 | const authenticatedOperator = context.http?.authInfo?.extra?.operatorId;
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| 77 | if (
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| 78 | typeof authenticatedOperator === 'string' &&
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| 79 | input.operatorRef !== `descope:${authenticatedOperator}`
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| 80 | ) {
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| 81 | throw new Error('Agent identity is not owned by the authenticated operator');
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| 82 | }
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| 83 | return text(engine.registerAgent(input));
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| 84 | },
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| 85 | );
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| 86 | server.registerTool(
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| 87 | OPENCLASP_TOOL_NAMES[2],
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| 88 | {
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| 89 | description: 'Get a task-specific behavioural profile',
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| 90 | inputSchema: z.object({ agentId: z.string(), version: z.string(), taskCategory: z.string() }),
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| 91 | },
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| 92 | async (input) => text(engine.getRisk(input.agentId, input.version, input.taskCategory)),
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| 93 | );
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| 94 | server.registerTool(
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| 95 | OPENCLASP_TOOL_NAMES[3],
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| 96 | {
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| 97 | description: 'Assess a counterparty in context',
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| 98 | inputSchema: z.object({
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| 99 | envelope: z.any(),
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| 100 | action: z.string(),
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| 101 | dataClasses: z.array(z.string()).optional(),
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| 102 | humanApproved: z.boolean().optional(),
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| 103 | }),
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| 104 | },
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| 105 | async (input) => text(engine.assess(input as any)),
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| 106 | );
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| 107 | server.registerTool(
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| 108 | OPENCLASP_TOOL_NAMES[4],
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| 109 | {
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| 110 | description: 'Begin an interaction and return its identifier',
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| 111 | inputSchema: z.object({
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| 112 | purpose: z.string(),
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| 113 | parties: z.array(z.string()),
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| 114 | taskCategory: z.string(),
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| 115 | }),
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| 116 | },
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| 117 | async (input) =>
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| 118 | text({ interactionId: crypto.randomUUID(), status: 'contract_required', ...input }),
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| 119 | );
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| 120 | server.registerTool(
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| 121 | OPENCLASP_TOOL_NAMES[5],
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| 122 | {
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| 123 | description: 'Validate and record a signed structured event',
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| 124 | inputSchema: InteractionEventSchema,
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| 125 | },
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| 126 | async (input) => text(engine.recordEvent(input)),
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| 127 | );
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| 128 | server.registerTool(
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| 129 | OPENCLASP_TOOL_NAMES[6],
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| 130 | {
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| 131 | description: 'Check an objective factual claim',
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| 132 | inputSchema: z.object({ claim: z.string(), permission: z.boolean().optional() }),
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| 133 | },
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| 134 | async (input) => text(await factChecker.check(input.claim, input.permission)),
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| 135 | );
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| 136 | server.registerTool(
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| 137 | OPENCLASP_TOOL_NAMES[7],
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| 138 | {
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| 139 | description: 'Check whether a commitment is represented by a signed event',
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| 140 | inputSchema: z.object({ interactionId: z.string().uuid(), commitment: z.string() }),
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| 141 | },
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| 142 | async (input) =>
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| 143 | text({
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| 144 | valid: [...engine.events.values()].some(
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| 145 | (event) =>
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| 146 | event.interactionId === input.interactionId &&
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| 147 | event.eventType === 'commitment' &&
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| 148 | JSON.stringify(event.payload).includes(input.commitment),
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| 149 | ),
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| 150 | }),
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| 151 | );
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| 152 | server.registerTool(
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| 153 | OPENCLASP_TOOL_NAMES[8],
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| 154 | {
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| 155 | description: 'Suggest attributable resolutions for a consented conflict',
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| 156 | inputSchema: z.object({ conflictId: z.string() }),
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| 157 | },
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| 158 | async (input) => text(engine.conflicts.get(input.conflictId)?.possibleResolutions ?? []),
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| 159 | );
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| 160 | server.registerTool(
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| 161 | OPENCLASP_TOOL_NAMES[9],
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| 162 | { description: 'Submit a signed completion receipt', inputSchema: ReceiptSchema },
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| 163 | async (input) => text(engine.submitReceipt(input)),
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| 164 | );
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| 165 | server.registerTool(
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| 166 | OPENCLASP_TOOL_NAMES[10],
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| 167 | { description: 'Submit receipt-backed structured feedback', inputSchema: FeedbackSchema },
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| 168 | async (input) => text(engine.submitFeedback(input)),
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| 169 | );
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| 170 | server.registerTool(
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| 171 | OPENCLASP_TOOL_NAMES[11],
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| 172 | {
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| 173 | description: 'Create a mutually consented dispute',
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| 174 | inputSchema: z.object({
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| 175 | interactionId: z.string().uuid(),
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| 176 | issue: z.string(),
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| 177 | participants: z.array(z.string()).min(2),
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| 178 | }),
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| 179 | },
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| 180 | async (input) =>
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| 181 | text(
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| 182 | engine.createConflict({
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| 183 | interactionId: input.interactionId,
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| 184 | issue: input.issue,
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| 185 | participants: input.participants,
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| 186 | positions: {},
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| 187 | evidence: [],
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| 188 | contractClauses: [],
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| 189 | missingInformation: [],
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| 190 | possibleResolutions: [],
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| 191 | }),
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| 192 | ),
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| 193 | );
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| 194 | server.registerTool(
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| 195 | OPENCLASP_TOOL_NAMES[12],
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| 196 | { description: 'Verify a signed interaction receipt', inputSchema: ReceiptSchema },
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| 197 | async (input) => {
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| 198 | try {
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| 199 | engine.submitReceipt(input);
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| 200 | return text({ valid: true });
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| 201 | } catch {
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| 202 | return text({ valid: false });
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| 203 | }
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| 204 | },
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| 205 | );
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| 206 | return server;
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| 207 | }
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