paperclipai/paperclip · error · ToolGatewayHttpError

run_agent_mismatch

run_agent_mismatch

Error message

Run does not belong to agent

What it means

Ownership guard following the company check: the run exists in the right company but belongs to a different agent than the caller. Prevents agents from reading or attaching to other agents' runs; the mismatched agentId/run pair is at fault.

Source

Thrown at server/src/services/tool-gateway.ts:1084

        catalogEntryId: catalogEntry.id,
        transport: connection.transport,
        gatewayToolName,
        upstreamToolName: catalogEntry.toolName,
        catalogName: catalogEntry.name,
        inputSchema,
        outputSchema,
        annotations,
        risk: {
          level: catalogEntry.riskLevel,
          isReadOnly: catalogEntry.isReadOnly,
          isWrite: catalogEntry.isWrite,
          isDestructive: catalogEntry.isDestructive,
        },
        onDemandTools,
      };
      return {
        name: gatewayToolName,
        displayName: catalogEntry.title ?? catalogEntry.toolName,
        description: catalogEntry.description ?? `Connected MCP tool ${catalogEntry.toolName} from ${connection.name}.`,
        parametersSchema: inputSchema,
        pluginId: `mcp:${applicationKey ?? application.id}`,
        providerType: connection.transport === "local_stdio" ? "mcp_local_stdio" : "mcp_remote_http",
        risk,
        applicationId: application.id,
        applicationKey,
        applicationDisplayName: application.name,
        connectionId: connection.id,
        catalogEntryId: catalogEntry.id,
        upstreamToolName: catalogEntry.toolName,
        providerMetadata,
      };
    });
  }

  async function connectedMcpToolsForConnection(companyId: string, connectionId: string): Promise<ToolGatewayDescriptor[]> {
    return (await connectedMcpToolsForCompany(companyId))

View on GitHub (pinned to 01ad858492)

Solutions

1. Use a run that belongs to the calling agent; an agent cannot act on runs of other agents.

When it happens

Trigger: Thrown at server/src/services/tool-gateway.ts:1066 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of paperclipai/paperclip@01ad858492 (2026-08-18). Data as JSON: /api/errors/54e4be9770bc2474. Report an issue: GitHub.